Docs updates

* Add support for `text/tab-separated-values` mimetype

* Fix eslint issues

* Add the release note for CSV parser change

.github/workflows/pr-check-build-size.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
     - name: build-size-check
       id: get_sizes
-      uses: TiddlyWiki/cerebrus@v4
+      uses: TiddlyWiki/cerebrus@v6
       with:
         pr_number: ${{ github.event.pull_request.number }}
         repo: ${{ github.repository }}

.github/workflows/pr-comment-build-size.yml

@@ -25,7 +25,7 @@ jobs:
 
     steps:
     - name: Build and check size
-      uses: TiddlyWiki/cerebrus@v4
+      uses: TiddlyWiki/cerebrus@v6
       with:
         pr_number: ${{ inputs.pr_number }}
         repo: ${{ github.repository }}

.github/workflows/pr-path-validation.yml

@@ -1,18 +0,0 @@
-name: Validate PR Paths
-
-on:
-  pull_request_target:
-    types: [opened, reopened, synchronize]
-
-jobs:
-  validate-pr:
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Validate PR
-      uses: TiddlyWiki/cerebrus@v4
-      with:
-        pr_number: ${{ github.event.pull_request.number }}
-        repo: ${{ github.repository }}
-        base_ref: ${{ github.base_ref }}
-        github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pr-validation.yml

@@ -0,0 +1,37 @@
+name: PR Validation
+
+on:
+  pull_request_target:
+    types: [opened, reopened, synchronize]
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+jobs:
+  validate-pr:
+    runs-on: ubuntu-latest
+
+    steps:
+    # Step 1: Validate PR paths
+    - name: Validate PR Paths
+      uses: TiddlyWiki/cerebrus@v6
+      with:
+        pr_number: ${{ github.event.pull_request.number }}
+        repo: ${{ github.repository }}
+        base_ref: ${{ github.event.pull_request.base.ref }}
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        mode: rules
+      continue-on-error: true
+    
+    # Step 2: Validate change notes
+    - name: Validate Change Notes
+      uses: TiddlyWiki/cerebrus@v6
+      with:
+        pr_number: ${{ github.event.pull_request.number }}
+        repo: ${{ github.repository }}
+        base_ref: ${{ github.event.pull_request.base.ref }}
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        mode: changenotes
+      continue-on-error: false
+

community/people/PMario.tid

@@ -0,0 +1,25 @@
+avatar: UklGRiwIAABXRUJQVlA4WAoAAAAwAAAAPwAAPwAASUNDUCACAAAAAAIgbGNtcwRAAABtbnRyR1JBWVhZWiAH6QALAAoACwADAAZhY3NwTVNGVAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA9tYAAQAAAADTLWxjbXMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAZkZXNjAAAAzAAAAG5jcHJ0AAABPAAAADZ3dHB0AAABdAAAABRrVFJDAAABiAAAACBkbW5kAAABqAAAACRkbWRkAAABzAAAAFJtbHVjAAAAAAAAAAEAAAAMZW5VUwAAAFIAAAAcAEcASQBNAFAAIABiAHUAaQBsAHQALQBpAG4AIABEADYANQAgAEcAcgBhAHkAcwBjAGEAbABlACAAdwBpAHQAaAAgAHMAUgBHAEIAIABUAFIAQwAAbWx1YwAAAAAAAAABAAAADGVuVVMAAAAaAAAAHABQAHUAYgBsAGkAYwAgAEQAbwBtAGEAaQBuAABYWVogAAAAAAAA81EAAQAAAAEWzHBhcmEAAAAAAAMAAAACZmYAAPKnAAANWQAAE9AAAApbbWx1YwAAAAAAAAABAAAADGVuVVMAAAAIAAAAHABHAEkATQBQbWx1YwAAAAAAAAABAAAADGVuVVMAAAA2AAAAHABEADYANQAgAEcAcgBhAHkAcwBjAGEAbABlACAAdwBpAHQAaAAgAHMAUgBHAEIAIABUAFIAQwAAVlA4TOYFAAAvP8APEDWGgbRtWv+yt/0WImICOBvWn1C4dFi1bStbvpY8Qg2ePANNNAMh3N2db/7A91/7CHBvBBRr25ZFH+4k98ihkqi2CP4tsANvX8a+8y8Ct04dn0nuUt39ZiBJkowqt911M+MJ1G3bNiZJr1iP0DZ+2bbdadsqprOjAqmoUIX9hf3Fl5/uPYV7I3OMeoFzIvrvwG0kRUr3zPLdYMMXaqrMMsp0K4fufKO6c2hFV5Zh7kRROZX0PSCmB/3KWQwpuiekWelSRZDW94d0q750NrxavpFn1eLNQ9EV8nWlmAET6Q8lrCRTcjFLlLImluK3iXJW/hT47KGklS8OlzWUtXLFYDRCSS74ojUjxggqKMoxd6A1lTCyvsvyzC5/d7BsCHb7yIcHyrX2yR/NPnsAdRT2i0Pwp/o0Il6ix8hsRAuJmQgcr4KREfAiMgUVm9KqmfSxL5pOJspVwwTiV6jiIAg1RMhHpERhbvwgGI34Hc49T7UeKZtXwEqJ+BAaoBneperJH0POs1u4dufwv8Gf+qcOfjyvX6ZIVgxE0Rw87YF3BSc9c7jsXfdjOBG7FwmSb39pfGRwu8IuvUjJNoTpFzkEvDg6W3Qt/9nf99ZXPy8HM43IweTKyNR+WVatXcWWyakBksj9cqW+QetplcjsKElvZH/zuOO/PrCx//tL3/6x/O/C1PZZvSKuulLcS4l8M1ewGPR6ef5sllXW2eGQZ7hVSEZiPmcqrSS8e2ElX8o7t1fvB9LFetmEx5hx1Xuye2PpfjZnSjj7QfKTB3bZZo05Zvh6YuivX24cpc8+ddvADWG9odrSwFalVurxUiidDHmTiaoNkkh2gjbcpxMiAbd39aVP119/N9k4+euNKfcNjwaPhZEuUupUsJrHchw1LkPrRC9bQKa3M8Mj/xx903drdnHMpbirj1ENsUre0oo3N+7gat+2ZctKdsIUYc21sRu+Ucdhn+P7DyarftW00iu3Tmbv+hTfdCTmyaIPT4PrYZDFtBN2W8S9m4oTB5Z2P3Oe7weKjVBq86kXX/r0+WuvTAzfjqm1hsYRPWlbxm4n3IaeGOJEizv8orH9w5ejjmSrfOuEq/HxT6eDemtsZ/HTvvG1/8iVspxZILrlkz/cdsIbIroOgJileFSty2xiHNW5t9fbHJ3ze87bp5T9vc8RuqMB0ReDSt464R/BJxspvgpEsrVAJMTsYg2QovPTOHrvQ9et/S2Xx+40z7dY4JBX0Pz/ElH/T73U2DkK8EiqC9hM/zV3frQfzjaAqO16s1l6xCUXnBFlYxyIer3eEdth7u5xsHKxWoGLqzY3wIULt9G3K6soei9jZ+UcF+Ka3M/II9EUWrJ/LLxy+Q9xIh0vOl3NZCrVnBsuFUTOSnJnSioRWZ9q4g+ZDk5XVORoW2qX2hbIkna3JOrdR3jmpHVLovUkLES6grRO010u0GkDlX7SpH1DQ64Wl2zaSUJv1Mtti2G7kx5IyftWMhfDlGClcxvIUhP5crhp9LIb1Vne187oSAWxelcR/kXjYQTZboW+Oj1pqF0gmfZhSDD6bSgzGWrw3s7QLNtCV+2uatYrd/aFtjDI8R52e/DdyKgRKXBhEak3Ev50+GCUA9EFUor39htVMxmWvW8AM6ptG416rZvdWn+MarIEyH5r6ruZSrx8XrWDP370vbfTjqpmZGIbiFPFoihc4jcrlYi9p3ndSuymZ+XLaKza/P/HUWHn5Axdkd9OjBskY0+pIlz4AlFPFs+aStK5PBIRR4MVVJDihsy4JdEA4pVcrVqMZDyL2/8aYocikEAR9Xjc1BNG9zEiJG7n/cGyrtnblkClBhEgMW4Kx21BEBGJjLa0hcOGmTK64KsKLfKr9QyQELclxY3hqowTIZKdZNTSS5BWiBPlKxDWBVSS41bOepkhTkhGDajLfLyUBOKlkMHPgOhx3JoRN/cEiRgSWdgF2yCyDQu4IcbNo8ftTzxveOJ5y+h509h52+h549h569h587/M20f/b1AB
+created: 20251110102157310
+first-sighting: 2009-11-14
+fullname: Mario Pietsch
+github: pmario
+homepage: https://wikilabs.github.io/
+modified: 20251110124935183
+tags: Community/Person Community/Team/Contributors
+talk.tiddlywiki.org: pmario
+title: @pmario
+type: text/vnd.tiddlywiki
+youtube: https://www.youtube.com/@pmario
+
+''Hi, My name is Mario Pietsch''. Back in 2009 I was ''searching'' for ''a simple presentation tool'' and discovered ~TiddlyWiki Classic, Monkey Pirate ~TiddlyWiki ([[MPTW|https://mptw.tiddlyspot.com/]]) with ~TagglyTagging, Eric Shulman's ~TiddlyTools, Saq Imtiaz's navigation macros, and more. --- ''I was captivated''.
+
+After a deep dive, I combined these elements into my own "Presentation Manager", along [[3 step by step tutorials|https://groups.google.com/g/tiddlywiki/c/qG_tZ1x0MEU/m/-vLA0luMicYJ]] to help others build it. 
+
+Thanks to ''the positive spirit'' of the ~TiddlyWiki community, I am proud to be part of it since 2009.
+
+When Jeremy started developing ~TiddlyWiki 5 on ~GitHub, I joined in—opening [[issue no. 1|https://github.com/TiddlyWiki/TiddlyWiki5/issues/1]] all the way up to 13. For what that’s good ;) Since then, I have submitted nearly 600 pull requests and more than 500 issues, many of which have been merged or resolved.
+
+My ~TiddlyWiki 5 "laboratory" is at https://wikilabs.github.io, and I also share content on my ''~YouTube'' channel: https://www.youtube.com/@pmario
+
+Have fun!<br>
+Mario

community/project/teams/Developer Experience Team.tid

@@ -0,0 +1,19 @@
+title: Developer Experience Team
+tags: Community/Team
+modified: 20251109200632671
+created: 20251109200632671
+leader: @pmario
+team: @saqimtiaz
+
+The Developer Experience Team improves the experience of software contributors to the TiddlyWiki project. This includes enhancing documentation, streamlining contribution processes, and providing tools and resources to help developers effectively contribute to TiddlyWiki.
+
+Tools and resources managed by the Developer Experience Team include:
+
+* Advising and assisting contributors, particularly new developers
+* Maintenance of developer-focused documentation on the https://tiddlywiki.com/dev/ site, including:
+** Development environment setup guides
+** Code review processes and best practices
+** Contribution guidelines and documentation
+* Continuous integration and deployment scripts providing feedback on pull requests
+* Devising and implementing labelling systems for issues and pull requests
+* Automation scripts to simplify common development tasks

community/project/teams/Infrastructure Team.tid

@@ -1,8 +1,8 @@
-title: Infrastructure Team
-tags: Community/Team
-modified: 20250909171928024
 created: 20250909171928024
+modified: 20251110133437795
+tags: Community/Team
 team: @MotovunJack
+title: Infrastructure Team
 
 The Infrastructure Team is responsible for maintaining and improving the infrastructure that supports the TiddlyWiki project. This includes the hosting, deployment, and management of the TiddlyWiki websites and services, as well as the tools and systems used by the TiddlyWiki community.
 
@@ -12,3 +12,4 @@ The infrastructure includes:
 * github.com/TiddlyWiki
 * tiddlywiki.com DNS
 * Netlify account for PR previews
+* edit.tiddlywiki.com

core/modules/filterrunprefixes/let.js

@@ -0,0 +1,41 @@
+/*\
+title: $:/core/modules/filterrunprefixes/let.js
+type: application/javascript
+module-type: filterrunprefix
+
+Assign a value to a variable
+
+\*/
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter prefix function
+*/
+exports.let = function(operationSubFunction,options) {
+	// Return the filter run prefix function
+	return function(results,source,widget) {
+		// Save the result list
+		var resultList = results.toArray();
+		// Clear the results
+		results.clear();
+		// Evaluate the subfunction to get the variable name
+		var subFunctionResults = operationSubFunction(source,widget);
+		if(subFunctionResults.length === 0) {
+			return;
+		}
+		var name = subFunctionResults[0];
+		if(typeof name !== "string" || name.length === 0) {
+			return;
+		}
+		// Assign the result of the subfunction to the variable
+		var variables = {};
+		variables[name] = resultList;
+		// Return the variables
+		return {
+			variables: variables
+		};
+	};
+};

core/modules/filters.js

@@ -35,7 +35,7 @@ function parseFilterOperation(operators,filterString,p) {
 			operator.prefix = filterString.charAt(p++);
 		}
 		// Get the operator name
-		nextBracketPos = filterString.substring(p).search(/[\[\{<\/]/);
+		nextBracketPos = filterString.substring(p).search(/[\[\{<\/\(]/);
 		if(nextBracketPos === -1) {
 			throw "Missing [ in filter expression";
 		}
@@ -79,6 +79,10 @@ function parseFilterOperation(operators,filterString,p) {
 					operand.variable = true;
 					nextBracketPos = filterString.indexOf(">",p);
 					break;
+				case "(": // Round brackets
+					operand.multiValuedVariable = true;
+					nextBracketPos = filterString.indexOf(")",p);
+					break;
 				case "/": // regexp brackets
 					var rex = /^((?:[^\\\/]|\\.)*)\/(?:\(([mygi]+)\))?/g,
 						rexMatch = rex.exec(filterString.substring(p));
@@ -112,7 +116,7 @@ function parseFilterOperation(operators,filterString,p) {
 		// Check for multiple operands
 		while(filterString.charAt(p) === ",") {
 			p++;
-			if(/^[\[\{<\/]/.test(filterString.substring(p))) {
+			if(/^[\[\{<\/\(]/.test(filterString.substring(p))) {
 				nextBracketPos = p;
 				p++;
 				parseOperand(filterString.charAt(nextBracketPos));
@@ -141,7 +145,15 @@ exports.parseFilter = function(filterString) {
 		p = 0, // Current position in the filter string
 		match;
 	var whitespaceRegExp = /(\s+)/mg,
-		operandRegExp = /((?:\+|\-|~|=|\:(\w+)(?:\:([\w\:, ]*))?)?)(?:(\[)|(?:"([^"]*)")|(?:'([^']*)')|([^\s\[\]]+))/mg;
+		// Groups:
+		// 1 - entire filter run prefix
+		// 2 - filter run prefix itself
+		// 3 - filter run prefix suffixes
+		// 4 - opening square bracket following filter run prefix
+		// 5 - double quoted string following filter run prefix
+		// 6 - single quoted string following filter run prefix
+		// 7 - anything except for whitespace and square brackets
+		operandRegExp = /((?:\+|\-|~|(?:=>?)|\:(\w+)(?:\:([\w\:, ]*))?)?)(?:(\[)|(?:"([^"]*)")|(?:'([^']*)')|([^\s\[\]]+))/mg;
 	while(p < filterString.length) {
 		// Skip any whitespace
 		whitespaceRegExp.lastIndex = p;
@@ -152,38 +164,45 @@ exports.parseFilter = function(filterString) {
 		// Match the start of the operation
 		if(p < filterString.length) {
 			operandRegExp.lastIndex = p;
-			match = operandRegExp.exec(filterString);
-			if(!match || match.index !== p) {
-				throw $tw.language.getString("Error/FilterSyntax");
-			}
 			var operation = {
 				prefix: "",
 				operators: []
 			};
-			if(match[1]) {
-				operation.prefix = match[1];
-				p = p + operation.prefix.length;
-				if(match[2]) {
-					operation.namedPrefix = match[2];
-				}
-				if(match[3]) {
-					operation.suffixes = [];
-					 $tw.utils.each(match[3].split(":"),function(subsuffix) {
-						operation.suffixes.push([]);
-						$tw.utils.each(subsuffix.split(","),function(entry) {
-							entry = $tw.utils.trim(entry);
-							if(entry) {
-								operation.suffixes[operation.suffixes.length -1].push(entry);
-							}
+			match = operandRegExp.exec(filterString);
+			if(match && match.index === p) {
+				// If there is a filter run prefix
+				if(match[1]) {
+					operation.prefix = match[1];
+					p = p + operation.prefix.length;
+					// Name for named prefixes
+					if(match[2]) {
+						operation.namedPrefix = match[2];
+					}
+					// Suffixes for filter run prefix
+					if(match[3]) {
+						operation.suffixes = [];
+						$tw.utils.each(match[3].split(":"),function(subsuffix) {
+							operation.suffixes.push([]);
+							$tw.utils.each(subsuffix.split(","),function(entry) {
+								entry = $tw.utils.trim(entry);
+								if(entry) {
+									operation.suffixes[operation.suffixes.length -1].push(entry);
+								}
+							});
 						});
-					 });
+					}
+				}
+				// Opening square bracket
+				if(match[4]) {
+					p = parseFilterOperation(operation.operators,filterString,p);
+				} else {
+					p = match.index + match[0].length;
 				}
-			}
-			if(match[4]) { // Opening square bracket
-				p = parseFilterOperation(operation.operators,filterString,p);
 			} else {
-				p = match.index + match[0].length;
+				// No filter run prefix
+				p = parseFilterOperation(operation.operators,filterString,p);
 			}
+			// Quoted strings and unquoted title
 			if(match[5] || match[6] || match[7]) { // Double quoted string, single quoted string or unquoted title
 				operation.operators.push(
 					{operator: "title", operands: [{text: match[5] || match[6] || match[7]}]}
@@ -251,6 +270,8 @@ exports.compileFilter = function(filterString) {
 				results = [];
 			$tw.utils.each(operation.operators,function(operator) {
 				var operands = [],
+					multiValueOperands = [],
+					isMultiValueOperand = [],
 					operatorFunction;
 				if(!operator.operator) {
 					// Use the "title" operator if no operator is specified
@@ -266,13 +287,29 @@ exports.compileFilter = function(filterString) {
 					if(operand.indirect) {
 						var currTiddlerTitle = widget && widget.getVariable("currentTiddler");
 						operand.value = self.getTextReference(operand.text,"",currTiddlerTitle);
+						operand.multiValue = [operand.value];
 					} else if(operand.variable) {
 						var varTree = $tw.utils.parseFilterVariable(operand.text);
 						operand.value = widgetClass.evaluateVariable(widget,varTree.name,{params: varTree.params, source: source})[0] || "";
+						operand.multiValue = [operand.value];
+					} else if(operand.multiValuedVariable) {
+						var varTree = $tw.utils.parseFilterVariable(operand.text);
+						var resultList = widgetClass.evaluateVariable(widget,varTree.name,{params: varTree.params, source: source});
+						if((resultList.length > 0 && resultList[0] !== undefined) || resultList.length === 0) {
+							operand.multiValue = widgetClass.evaluateVariable(widget,varTree.name,{params: varTree.params, source: source}) || [];
+							operand.value = operand.multiValue[0] || "";
+						} else {
+							operand.value = "";
+							operand.multiValue = [];
+						}
+						operand.isMultiValueOperand = true;	
 					} else {
 						operand.value = operand.text;
+						operand.multiValue = [operand.value];
 					}
 					operands.push(operand.value);
+					multiValueOperands.push(operand.multiValue);
+					isMultiValueOperand.push(!!operand.isMultiValueOperand);
 				});
 
 				// Invoke the appropriate filteroperator module
@@ -280,6 +317,8 @@ exports.compileFilter = function(filterString) {
 							operator: operator.operator,
 							operand: operands.length > 0 ? operands[0] : undefined,
 							operands: operands,
+							multiValueOperands: multiValueOperands,
+							isMultiValueOperand: isMultiValueOperand,
 							prefix: operator.prefix,
 							suffix: operator.suffix,
 							suffixes: operator.suffixes,
@@ -319,6 +358,8 @@ exports.compileFilter = function(filterString) {
 					return filterRunPrefixes["and"](operationSubFunction, options);
 				case "~": // This operation is unioned into the result only if the main result so far is empty
 					return filterRunPrefixes["else"](operationSubFunction, options);
+				case "=>": // This operation is applied to the main results so far, and the results are assigned to a variable
+					return filterRunPrefixes["let"](operationSubFunction, options);
 				default: 
 					if(operation.namedPrefix && filterRunPrefixes[operation.namedPrefix]) {
 						return filterRunPrefixes[operation.namedPrefix](operationSubFunction, options);
@@ -345,7 +386,13 @@ exports.compileFilter = function(filterString) {
 		self.filterRecursionCount = (self.filterRecursionCount || 0) + 1;
 		if(self.filterRecursionCount < MAX_FILTER_DEPTH) {
 			$tw.utils.each(operationFunctions,function(operationFunction) {
-				operationFunction(results,source,widget);
+				var operationResult = operationFunction(results,source,widget);
+				if(operationResult) {
+					if(operationResult.variables) {
+						// If the filter run prefix has returned variables, create a new fake widget with those variables
+						widget = widget.makeFakeWidgetWithVariables(operationResult.variables);
+					}
+				}
 			});
 		} else {
 			results.push("/**-- Excessive filter recursion --**/");

core/modules/filters/function.js

@@ -16,8 +16,8 @@ exports.function = function(source,operator,options) {
 	var functionName = operator.operands[0],
 		params = [],
 		results;
-	$tw.utils.each(operator.operands.slice(1),function(param) {
-		params.push({value: param});
+	$tw.utils.each(operator.multiValueOperands.slice(1),function(paramList) {
+		params.push({value: paramList[0] || "",multiValue: paramList});
 	});
 	// console.log(`Calling ${functionName} with params ${JSON.stringify(params)}`);
 	var variableInfo = options.widget && options.widget.getVariableInfo && options.widget.getVariableInfo(functionName,{params: params, source: source});

core/modules/filters/json-ops.js

@@ -113,6 +113,22 @@ exports["jsonset"] = function(source,operator,options) {
 	return results;
 };
 
+exports["jsondelete"] = function(source,operator,options) {
+	var indexes = operator.operands,
+		results = [];
+	source(function(tiddler,title) {
+		var data = $tw.utils.parseJSONSafe(title,title);
+		// If parsing failed (data equals original title and is a string), return unchanged
+		if(data === title && typeof data === "string") {
+			results.push(title);
+		} else if(data) {
+			data = deleteDataItem(data,indexes);
+			results.push(JSON.stringify(data));
+		}
+	});
+	return results;
+};
+
 /*
 Given a JSON data structure and an array of index strings, return an array of the string representation of the values at the end of the index chain, or "undefined" if any of the index strings are invalid
 */
@@ -144,7 +160,7 @@ function convertDataItemValueToStrings(item) {
 		return ["null"]
 	} else if(typeof item === "object") {
 		var results = [],i,t;
-		if($tw.utils.isArray(item)) {
+		if(Array.isArray(item)) {
 			// Return all the items in arrays recursively
 			for(i=0; i<item.length; i++) {
 				t = convertDataItemValueToStrings(item[i])
@@ -178,7 +194,7 @@ function convertDataItemKeysToStrings(item) {
 			return [];
 		}
 		var results = [];
-		if($tw.utils.isArray(item)) {
+		if(Array.isArray(item)) {
 			for(var i=0; i<item.length; i++) {
 				results.push(i.toString());
 			}
@@ -201,7 +217,7 @@ function getDataItemType(data,indexes) {
 		return item;
 	} else if(item === null) {
 		return "null";
-	} else if($tw.utils.isArray(item)) {
+	} else if(Array.isArray(item)) {
 		return "array";
 	} else if(typeof item === "object") {
 		return "object";
@@ -213,7 +229,7 @@ function getDataItemType(data,indexes) {
 function getItemAtIndex(item,index) {
 	if($tw.utils.hop(item,index)) {
 		return item[index];
-	} else if($tw.utils.isArray(item)) {
+	} else if(Array.isArray(item)) {
 		index = $tw.utils.parseInt(index);
 		if(index < 0) { index = index + item.length };
 		return item[index]; // Will be undefined if index was out-of-bounds
@@ -223,15 +239,16 @@ function getItemAtIndex(item,index) {
 }
 
 /*
-Given a JSON data structure and an array of index strings, return the value at the end of the index chain, or "undefined" if any of the index strings are invalid
+Traverse the index chain and return the item at the specified depth.
+Returns the item at the end of the traversal, or undefined if traversal fails.
 */
-function getDataItem(data,indexes) {
+function traverseIndexChain(data,indexes,stopBeforeLast) {
 	if(indexes.length === 0 || (indexes.length === 1 && indexes[0] === "")) {
 		return data;
 	}
-	// Get the item
 	var item = data;
-	for(var i=0; i<indexes.length; i++) {
+	var stopIndex = stopBeforeLast ? indexes.length - 1 : indexes.length;
+	for(var i = 0; i < stopIndex; i++) {
 		if(item !== undefined) {
 			if(item !== null && ["number","string","boolean"].indexOf(typeof item) === -1) {
 				item = getItemAtIndex(item,indexes[i]);
@@ -243,6 +260,13 @@ function getDataItem(data,indexes) {
 	return item;
 }
 
+/*
+Given a JSON data structure and an array of index strings, return the value at the end of the index chain, or "undefined" if any of the index strings are invalid
+*/
+function getDataItem(data,indexes) {
+	return traverseIndexChain(data,indexes,false);
+}
+
 /*
 Given a JSON data structure, an array of index strings and a value, return the data structure with the value added at the end of the index chain. If any of the index strings are invalid then the JSON data structure is returned unmodified. If the root item is targetted then a different data object will be returned
 */
@@ -255,18 +279,15 @@ function setDataItem(data,indexes,value) {
 	if(indexes.length === 0 || (indexes.length === 1 && indexes[0] === "")) {
 		return value;
 	}
-	// Traverse the JSON data structure using the index chain
-	var current = data;
-	for(var i = 0; i < indexes.length - 1; i++) {
-		current = getItemAtIndex(current,indexes[i]);
-		if(current === undefined) {
-			// Return the original JSON data structure if any of the index strings are invalid
-			return data;
-		}
+	// Traverse the JSON data structure using the index chain up to the parent
+	var current = traverseIndexChain(data,indexes,true);
+	if(current === undefined) {
+		// Return the original JSON data structure if any of the index strings are invalid
+		return data;
 	}
 	// Add the value to the end of the index chain
 	var lastIndex = indexes[indexes.length - 1];
-	if($tw.utils.isArray(current)) {
+	if(Array.isArray(current)) {
 		lastIndex = $tw.utils.parseInt(lastIndex);
 		if(lastIndex < 0) { lastIndex = lastIndex + current.length };
 	}
@@ -276,3 +297,32 @@ function setDataItem(data,indexes,value) {
 	}
 	return data;
 }
+
+/*
+Given a JSON data structure and an array of index strings, return the data structure with the item at the end of the index chain deleted. If any of the index strings are invalid then the JSON data structure is returned unmodified. If the root item is targetted then the JSON data structure is returned unmodified.
+*/
+function deleteDataItem(data,indexes) {
+	// Check for the root item - don't delete the root
+	if(indexes.length === 0 || (indexes.length === 1 && indexes[0] === "")) {
+		return data;
+	}
+	// Traverse the JSON data structure using the index chain up to the parent
+	var current = traverseIndexChain(data,indexes,true);
+	if(current === undefined || current === null) {
+		// Return the original JSON data structure if any of the index strings are invalid
+		return data;
+	}
+	// Delete the item at the end of the index chain
+	var lastIndex = indexes[indexes.length - 1];
+	if(Array.isArray(current) && current !== null) {
+		lastIndex = $tw.utils.parseInt(lastIndex);
+		if(lastIndex < 0) { lastIndex = lastIndex + current.length };
+		// Check if index is valid before splicing
+		if(lastIndex >= 0 && lastIndex < current.length) {
+			current.splice(lastIndex,1);
+		}
+	} else if(typeof current === "object" && current !== null) {
+		delete current[lastIndex];
+	}
+	return data;
+}

core/modules/filters/title.js

@@ -16,12 +16,13 @@ exports.title = function(source,operator,options) {
 	var results = [];
 	if(operator.prefix === "!") {
 		source(function(tiddler,title) {
-			if(tiddler && tiddler.fields.title !== operator.operand) {
+			var titleList = operator.multiValueOperands[0] || [];
+			if(tiddler && titleList.indexOf(tiddler.fields.title) === -1) {
 				results.push(title);
 			}
 		});
 	} else {
-		results.push(operator.operand);
+		Array.prototype.push.apply(results,operator.multiValueOperands[0]);
 	}
 	return results;
 };

core/modules/filters/unknown.js

@@ -20,8 +20,8 @@ exports["[unknown]"] = function(source,operator,options) {
 	// Check for a user defined filter operator
 	if(operator.operator.indexOf(".") !== -1) {
 		var params = [];
-		$tw.utils.each(operator.operands,function(param) {
-			params.push({value: param});
+		$tw.utils.each(operator.multiValueOperands,function(paramList) {
+			params.push({value: paramList[0] || "",multiValue: paramList});
 		});	
 		var variableInfo = options.widget && options.widget.getVariableInfo && options.widget.getVariableInfo(operator.operator,{params: params, source: source});
 		if(variableInfo && variableInfo.srcVariable) {

core/modules/parsers/csvparser.js

@@ -11,10 +11,13 @@ The CSV text parser processes CSV files into a table wrapped in a scrollable wid
 
 var CsvParser = function(type,text,options) {
 	// Special handler for tab-delimited files
-	if (type === 'text/tab-delimited-values' && !options.separator) {
+	if(
+		!options.separator &&
+		(type === "text/tab-delimited-values" || type === "text/tab-separated-values")
+	) {
 		options.separator = "\t";
 	}
-	
+
 	// Table framework
 	this.tree = [{
 		"type": "scrollable", "children": [{
@@ -32,7 +35,7 @@ var CsvParser = function(type,text,options) {
 	$tw.utils.each(lines, function(columns) {
 		maxColumns = Math.max(columns.length, maxColumns);
 	});
-	
+
 	for(var line=0; line<lines.length; line++) {
 		var columns = lines[line];
 		var row = {
@@ -55,3 +58,4 @@ var CsvParser = function(type,text,options) {
 
 exports["text/csv"] = CsvParser;
 exports["text/tab-delimited-values"] = CsvParser;
+exports["text/tab-separated-values"] = CsvParser;

core/modules/utils/dom/browser.js

@@ -61,7 +61,7 @@ exports.convertStyleNameToPropertyName = function(styleName) {
 	var propertyName = $tw.utils.unHyphenateCss(styleName);
 	// Then check if it needs a prefix
 	if($tw.browser && document.body.style[propertyName] === undefined) {
-		var prefixes = ["O","MS","Moz","webkit"];
+		var prefixes = ["Moz","webkit"];
 		for(var t=0; t<prefixes.length; t++) {
 			var prefixedName = prefixes[t] + propertyName.substr(0,1).toUpperCase() + propertyName.substr(1);
 			if(document.body.style[prefixedName] !== undefined) {
@@ -112,8 +112,6 @@ var eventNameMappings = {
 		correspondingCssProperty: "transition",
 		mappings: {
 			transition: "transitionend",
-			OTransition: "oTransitionEnd",
-			MSTransition: "msTransitionEnd",
 			MozTransition: "transitionend",
 			webkitTransition: "webkitTransitionEnd"
 		}
@@ -122,8 +120,6 @@ var eventNameMappings = {
 		correspondingCssProperty: "animation",
 		mappings: {
 			animation: "animationend",
-			OAnimation: "oAnimationEnd",
-			MSAnimation: "msAnimationEnd",
 			MozAnimation: "animationend",
 			webkitAnimation: "webkitAnimationEnd"
 		}
@@ -156,19 +152,15 @@ exports.getFullScreenApis = function() {
 		result = {
 		"_requestFullscreen": db.webkitRequestFullscreen !== undefined ? "webkitRequestFullscreen" :
 							db.mozRequestFullScreen !== undefined ? "mozRequestFullScreen" :
-							db.msRequestFullscreen !== undefined ? "msRequestFullscreen" :
 							db.requestFullscreen !== undefined ? "requestFullscreen" : "",
 		"_exitFullscreen": d.webkitExitFullscreen !== undefined ? "webkitExitFullscreen" :
 							d.mozCancelFullScreen !== undefined ? "mozCancelFullScreen" :
-							d.msExitFullscreen !== undefined ? "msExitFullscreen" :
 							d.exitFullscreen !== undefined ? "exitFullscreen" : "",
 		"_fullscreenElement": d.webkitFullscreenElement !== undefined ? "webkitFullscreenElement" :
 							d.mozFullScreenElement !== undefined ? "mozFullScreenElement" :
-							d.msFullscreenElement !== undefined ? "msFullscreenElement" :
 							d.fullscreenElement !== undefined ? "fullscreenElement" : "",
 		"_fullscreenChange": d.webkitFullscreenElement !== undefined ? "webkitfullscreenchange" :
 							d.mozFullScreenElement !== undefined ? "mozfullscreenchange" :
-							d.msFullscreenElement !== undefined ? "MSFullscreenChange" :
 							d.fullscreenElement !== undefined ? "fullscreenchange" : ""
 	};
 	if(!result._requestFullscreen || !result._exitFullscreen || !result._fullscreenElement || !result._fullscreenChange) {

core/modules/utils/pluginmaker.js

@@ -60,7 +60,7 @@ exports.repackPlugin = function(title,additionalTiddlers,excludeTiddlers) {
 		version += "+" + pluginVersion.build;
 	}
 	// Save the tiddler
-	$tw.wiki.addTiddler(new $tw.Tiddler(pluginTiddler,{text: JSON.stringify({tiddlers: plugins},null,4), version: version}));
+	$tw.wiki.addTiddler(new $tw.Tiddler(pluginTiddler,{text: JSON.stringify({tiddlers: plugins},null,4), version: version},$tw.wiki.getModificationFields()));
 	// Delete any non-shadow constituent tiddlers
 	$tw.utils.each(tiddlers,function(title) {
 		if($tw.wiki.tiddlerExists(title)) {

core/modules/utils/utils.js

@@ -49,14 +49,26 @@ exports.warning = function(text) {
 };
 
 /*
-Log a table of name: value pairs
+Log a table of name: value or name: [values...] pairs
 */
 exports.logTable = function(data) {
-	if(console.table) {
+	var hasArrays = false;
+	$tw.utils.each(data,function(value,name) {
+		if($tw.utils.isArray(value)) {
+			hasArrays = true;
+		}
+	});
+	if(console.table && !hasArrays) {
 		console.table(data);
 	} else {
 		$tw.utils.each(data,function(value,name) {
-			console.log(name + ": " + value);
+			if($tw.utils.isArray(value)) {
+				for(var t=0; t<value.length; t++) {
+					console.log(`${name}[${t}]: ${value[t]}`);
+				}
+			} else {
+				console.log(`${name}: ${value}`);
+			}
 		});
 	}
 }

core/modules/widgets/action-log.js

@@ -51,23 +51,29 @@ LogWidget.prototype.invokeAction = function(triggeringWidget,event) {
 };
 
 LogWidget.prototype.log = function() {
-	var data = {},
+	var self = this,
+		data = {}, // Hashmap by attribute name with string or array of string values
 		dataCount,
-		allVars = {},
+		allVars = {}, // Hashmap by variable name with string or array of string values
 		filteredVars;
-
-	$tw.utils.each(this.attributes,function(attribute,name) {
+	// Collect the attributes to be logged
+	$tw.utils.each(this.parseTreeNode.attributes,function(attribute,name) {
 		if(name.substring(0,2) !== "$$") {
-			data[name] = attribute;
+			var resultList = self.computeAttribute(attribute,{asList: true});
+			if(resultList.length <= 1) {
+				data[name] = resultList[0] || "";
+			} else {
+				data[name] = resultList;
+			}
 		}
 	});
-
+	// Collect values of all variables, using the source text for functions
 	for(var v in this.variables) {
-		var variable = this.parentWidget && this.parentWidget.variables[v];
-		if(variable && variable.isFunctionDefinition) {
-			allVars[v] = variable.value;
+		var variableInfo = this.getVariableInfo(v);
+		if(variableInfo && variableInfo.srcVariable && variableInfo.srcVariable.isFunctionDefinition) {
+			allVars[v] = variableInfo.text;
 		} else {
-			allVars[v]  = this.getVariable(v,{defaultValue:""});
+			allVars[v] = variableInfo.resultList.length > 1 ? variableInfo.resultList : variableInfo.text;
 		}
 	}
 	if(this.filter) {

core/modules/widgets/droppable.js

@@ -177,7 +177,7 @@ DroppableWidget.prototype.execute = function() {
 DroppableWidget.prototype.assignDomNodeClasses = function() {
 	var classes = this.getAttribute("class","").split(" ");
 	classes.push("tc-droppable");
-	this.domNode.className = classes.join(" ");
+	this.domNode.className = classes.join(" ").trim();
 };
 
 /*

core/modules/widgets/eventcatcher.js

@@ -130,7 +130,7 @@ EventWidget.prototype.execute = function() {
 EventWidget.prototype.assignDomNodeClasses = function() {
 	var classes = this.getAttribute("class","").split(" ");
 	classes.push("tc-eventcatcher");
-	this.domNode.className = classes.join(" ");
+	this.domNode.className = classes.join(" ").trim();
 };
 
 /*

core/modules/widgets/keyboard.js

@@ -110,7 +110,7 @@ KeyboardWidget.prototype.execute = function() {
 KeyboardWidget.prototype.assignDomNodeClasses = function() {
 	var classes = this.getAttribute("class","").split(" ");
 	classes.push("tc-keyboard");
-	this.domNode.className = classes.join(" ");
+	this.domNode.className = classes.join(" ").trim();
 };
 
 /*

core/modules/widgets/let.js

@@ -46,7 +46,7 @@ LetWidget.prototype.computeAttributes = function() {
 		self = this;
 	this.currentValueFor = Object.create(null);
 	$tw.utils.each($tw.utils.getOrderedAttributesFromParseTreeNode(this.parseTreeNode),function(attribute) {
-		var value = self.computeAttribute(attribute),
+		var value = self.computeAttribute(attribute,{asList: true}),
 			name = attribute.name;
 		// Now that it's prepped, we're allowed to look this variable up
 		// when defining later variables
@@ -56,7 +56,7 @@ LetWidget.prototype.computeAttributes = function() {
 	});
 	// Run through again, setting variables and looking for differences
 	$tw.utils.each(this.currentValueFor,function(value,name) {
-		if (self.attributes[name] !== value) {
+		if(!$tw.utils.isArrayEqual(self.attributes[name],value)) {
 			self.attributes[name] = value;
 			self.setVariable(name,value);
 			changedAttributes[name] = true;
@@ -69,8 +69,10 @@ LetWidget.prototype.getVariableInfo = function(name,options) {
 	// Special handling: If this variable exists in this very $let, we can
 	// use it, but only if it's been staged.
 	if ($tw.utils.hop(this.currentValueFor,name)) {
+		var value = this.currentValueFor[name];
 		return {
-			text: this.currentValueFor[name]
+			text: value[0] || "",
+			resultList: value
 		};
 	}
 	return Widget.prototype.getVariableInfo.call(this,name,options);

core/modules/widgets/reveal.js

@@ -203,7 +203,7 @@ RevealWidget.prototype.readPopupState = function(state) {
 RevealWidget.prototype.assignDomNodeClasses = function() {
 	var classes = this.getAttribute("class","").split(" ");
 	classes.push("tc-reveal");
-	this.domNode.className = classes.join(" ");
+	this.domNode.className = classes.join(" ").trim();
 };
 
 /*

core/modules/widgets/widget.js

@@ -80,7 +80,7 @@ Widget.prototype.execute = function() {
 /*
 Set the value of a context variable
 name: name of the variable
-value: value of the variable
+value: value of the variable, can be a string or an array
 params: array of {name:, default:} for each parameter
 isMacroDefinition: true if the variable is set via a \define macro pragma (and hence should have variable substitution performed)
 options includes:
@@ -90,8 +90,10 @@ options includes:
 */
 Widget.prototype.setVariable = function(name,value,params,isMacroDefinition,options) {
 	options = options || {};
+	var valueIsArray = $tw.utils.isArray(value);
 	this.variables[name] = {
-		value: value,
+		value: valueIsArray ? (value[0] || "") : value,
+		resultList: valueIsArray ? value : [value],
 		params: params,
 		isMacroDefinition: !!isMacroDefinition,
 		isFunctionDefinition: !!options.isFunctionDefinition,
@@ -114,7 +116,7 @@ allowSelfAssigned: if true, includes the current widget in the context chain ins
 
 Returns an object with the following fields:
 
-params: array of {name:,value:} or {value:} of parameters to be applied
+params: array of {name:,value:,multiValue:} of parameters to be applied (name is optional)
 text: text of variable, with parameters properly substituted
 resultList: result of variable evaluation as an array
 srcVariable: reference to the object defining the variable
@@ -140,7 +142,9 @@ Widget.prototype.getVariableInfo = function(name,options) {
 			params = self.resolveVariableParameters(variable.params,actualParams);
 			// Substitute any parameters specified in the definition
 			$tw.utils.each(params,function(param) {
-				value = $tw.utils.replaceString(value,new RegExp("\\$" + $tw.utils.escapeRegExp(param.name) + "\\$","mg"),param.value);
+				if("name" in param) {
+					value = $tw.utils.replaceString(value,new RegExp("\\$" + $tw.utils.escapeRegExp(param.name) + "\\$","mg"),param.value);
+				}
 			});
 			value = self.substituteVariableReferences(value,options);
 			resultList = [value];
@@ -154,13 +158,20 @@ Widget.prototype.getVariableInfo = function(name,options) {
 					variables[param.name] = param["default"];
 				}
 			});
-			// Parameters are an array of {value:} or {name:, value:} pairs
+			// Parameters are an array of {name:, value:, multivalue:} pairs (name and multivalue are optional)
 			$tw.utils.each(params,function(param) {
-				variables[param.name] = param.value;
+				if(param.multiValue) {
+					variables[param.name] = param.multiValue;
+				} else {
+					variables[param.name] = param.value || "";
+				}
 			});
 			resultList = this.wiki.filterTiddlers(value,this.makeFakeWidgetWithVariables(variables),options.source);
 			value = resultList[0] || "";
 		} else {
+			if(variable.resultList) {
+				resultList = variable.resultList;
+			}
 			params = variable.params;
 		}
 		return {
@@ -192,22 +203,24 @@ Widget.prototype.getVariable = function(name,options) {
 /*
 Maps actual parameters onto formal parameters, returning an array of {name:,value:} objects
 formalParams - Array of {name:,default:} (default value is optional)
-actualParams - Array of string values or {name:,value:} (name is optional)
+actualParams - Array of string values or {name:,value:,multiValue} (name and multiValue is optional)
 */
 Widget.prototype.resolveVariableParameters = function(formalParams,actualParams) {
 	formalParams = formalParams || [];
 	actualParams = actualParams || [];
 	var nextAnonParameter = 0, // Next candidate anonymous parameter in macro call
-		paramInfo, paramValue,
+		paramInfo, paramValue, paramMultiValue,
 		results = [];
 	// Step through each of the parameters in the macro definition
 	for(var p=0; p<formalParams.length; p++) {
 		// Check if we've got a macro call parameter with the same name
 		paramInfo = formalParams[p];
 		paramValue = undefined;
+		paramMultiValue = undefined;
 		for(var m=0; m<actualParams.length; m++) {
 			if(typeof actualParams[m] !== "string" && actualParams[m].name === paramInfo.name) {
 				paramValue = actualParams[m].value;
+				paramMultiValue = actualParams[m].multiValue || [paramValue]
 			}
 		}
 		// If not, use the next available anonymous macro call parameter
@@ -217,11 +230,13 @@ Widget.prototype.resolveVariableParameters = function(formalParams,actualParams)
 		if(paramValue === undefined && nextAnonParameter < actualParams.length) {
 			var param = actualParams[nextAnonParameter++];
 			paramValue = typeof param === "string" ? param : param.value;
+			paramMultiValue = typeof param === "string" ? [param] : (param.multiValue || [paramValue]);
 		}
 		// If we've still not got a value, use the default, if any
 		paramValue = paramValue || paramInfo["default"] || "";
+		paramMultiValue = paramMultiValue || [paramValue];
 		// Store the parameter name and value
-		results.push({name: paramInfo.name, value: paramValue});
+		results.push({name: paramInfo.name, value: paramValue, multiValue: paramMultiValue});
 	}
 	return results;
 };
@@ -310,7 +325,7 @@ Widget.prototype.getStateQualifier = function(name) {
 };
 
 /*
-Make a fake widget with specified variables, suitable for variable lookup in filters
+Make a fake widget with specified variables, suitable for variable lookup in filters. Each variable can be a string or an array of strings
 */
 Widget.prototype.makeFakeWidgetWithVariables = function(variables) {
 	var self = this,
@@ -318,7 +333,12 @@ Widget.prototype.makeFakeWidgetWithVariables = function(variables) {
 	return {
 		getVariable: function(name,opts) {
 			if($tw.utils.hop(variables,name)) {
-				return variables[name];
+				var value = variables[name];
+				if($tw.utils.isArray(value)) {
+					return value[0];
+				} else {
+					return value;
+				}
 			} else {
 				opts = opts || {};
 				opts.variables = variables;
@@ -327,9 +347,18 @@ Widget.prototype.makeFakeWidgetWithVariables = function(variables) {
 		},
 		getVariableInfo: function(name,opts) {
 			if($tw.utils.hop(variables,name)) {
-				return {
-					text: variables[name]
-				};
+				var value = variables[name];
+				if($tw.utils.isArray(value)) {
+					return {
+						text: value[0],
+						resultList: value
+					};
+				} else {
+					return {
+						text: value,
+						resultList: [value]
+					};
+				}
 			} else {
 				opts = opts || {};
 				opts.variables = $tw.utils.extend({},variables,opts.variables);
@@ -366,20 +395,45 @@ Widget.prototype.computeAttributes = function(options) {
 	return changedAttributes;
 };
 
-Widget.prototype.computeAttribute = function(attribute) {
+/*
+Compute the value of a single attribute. Options include:
+asList: boolean if true returns results as an array instead of a single value
+*/
+Widget.prototype.computeAttribute = function(attribute,options) {
+	options = options || {};
 	var self = this,
 		value;
 	if(attribute.type === "filtered") {
-		value = this.wiki.filterTiddlers(attribute.filter,this)[0] || "";
+		value = this.wiki.filterTiddlers(attribute.filter,this);
+		if(!options.asList) {
+			value = value[0] || "";
+		}
 	} else if(attribute.type === "indirect") {
-		value = this.wiki.getTextReference(attribute.textReference,"",this.getVariable("currentTiddler")) || "";
+		value = this.wiki.getTextReference(attribute.textReference,"",this.getVariable("currentTiddler"));
+		if(value && options.asList) {
+			value = [value];
+		}
 	} else if(attribute.type === "macro") {
 		var variableInfo = this.getVariableInfo(attribute.value.name,{params: attribute.value.params});
-		value = variableInfo.text;
+		if(options.asList) {
+			value = variableInfo.resultList;
+		} else {
+			value = variableInfo.text;
+		}
 	} else if(attribute.type === "substituted") {
 		value = this.wiki.getSubstitutedText(attribute.rawValue,this) || "";
+		if(options.asList) {
+			value = [value];
+		}
 	} else { // String attribute
 		value = attribute.value;
+		if(options.asList) {
+			if(value === undefined) {
+				value = [];
+			} else {
+				value = [value];
+			}
+		}
 	}
 	return value;
 };

core/templates/external-js/tiddlywiki5-external-js.html.tid

@@ -1,7 +1,7 @@
 title: $:/core/templates/tiddlywiki5-external-js.html
 
 <$set name="saveTiddlerAndShadowsFilter" filter="[subfilter<saveTiddlerFilter>] [subfilter<saveTiddlerFilter>plugintiddlers[]]">
-<$set name="rawMarkupFilter" filter="[enlist<saveTiddlerAndShadowsFilter>] +[[$:/core]plugintiddlers[]]">
+<$set name="rawMarkupFilter" filter="[enlist<saveTiddlerAndShadowsFilter>] [[$:/core]plugintiddlers[]]">
 `<!doctype html>
 `{{$:/core/templates/MOTW.html}}`<html lang="`<$text text={{{ [{$:/language}get[name]] }}}/>`">
 <head>

core/wiki/macros/CSS.tid

@@ -13,56 +13,6 @@ tags: $:/tags/Macro
 
 \define color(name) <<colour $name$>>
 
-\define box-shadow(shadow)
-``
--webkit-box-shadow: $shadow$;
-	-moz-box-shadow: $shadow$;
-		box-shadow: $shadow$;
-``
-\end
-
-\define filter(filter)
-``
--webkit-filter: $filter$;
-	-moz-filter: $filter$;
-		filter: $filter$;
-``
-\end
-
-\define transition(transition)
-``
--webkit-transition: $transition$;
-	-moz-transition: $transition$;
-		transition: $transition$;
-``
-\end
-
-\define transform-origin(origin)
-``
--webkit-transform-origin: $origin$;
-	-moz-transform-origin: $origin$;
-		transform-origin: $origin$;
-``
-\end
-
-\define background-linear-gradient(gradient)
-``
-background-image: linear-gradient($gradient$);
-background-image: -o-linear-gradient($gradient$);
-background-image: -moz-linear-gradient($gradient$);
-background-image: -webkit-linear-gradient($gradient$);
-background-image: -ms-linear-gradient($gradient$);
-``
-\end
-
-\define column-count(columns)
-``
--moz-column-count: $columns$;
--webkit-column-count: $columns$;
-column-count: $columns$;
-``
-\end
-
 \procedure datauri(title)
 <$macrocall $name="makedatauri" type={{{ [<title>get[type]] }}} text={{{ [<title>get[text]] }}} _canonical_uri={{{ [<title>get[_canonical_uri]] }}}/>
 \end

core/wiki/macros/deprecated.tid

@@ -0,0 +1,43 @@
+title: $:/core/macros/deprecated
+tags: $:/tags/Macro
+
+<!-- Deprecated Macros -->
+<!-- DO NOT USE THESE MACROS. THEY MAY BE REMOVED AT ANY MOMENT -->
+
+\define box-shadow(shadow)
+``
+		box-shadow: $shadow$;
+``
+\end
+
+\define filter(filter)
+``
+		filter: $filter$;
+``
+\end
+
+\define transition(transition)
+``
+		transition: $transition$;
+``
+\end
+
+\define transform-origin(origin)
+``
+		transform-origin: $origin$;
+``
+\end
+
+\define background-linear-gradient(gradient)
+``
+background-image: linear-gradient($gradient$);
+background-image: -moz-linear-gradient($gradient$);
+background-image: -webkit-linear-gradient($gradient$);
+``
+\end
+
+\define column-count(columns)
+``
+column-count: $columns$;
+``
+\end

editions/dev/tiddlers/new/Using TiddlyWiki as a library.tid

@@ -2,4 +2,4 @@ title: Using TiddlyWiki as a library in another Node.js application
 
 Node.js applications can include TiddlyWiki as a library so that they can use wikitext rendering.
 
-See the demo at https://github.com/TiddlyWiki/TiddlyWiki5DemoApp
+See the demo at https://github.com/Jermolene/TiddlyWiki5DemoApp

editions/prerelease/tiddlers/system/DefaultTiddlers.tid

@@ -2,12 +2,5 @@ created: 20131127215321439
 modified: 20140912135951542
 title: $:/DefaultTiddlers
 
-[[Hire the founder of TiddlyWiki]]
-[[TiddlyWiki Pre-release]]
-HelloThere
-[[Quick Start]]
-[[Find Out More]]
-[[TiddlyWiki on the Web]]
-[[Testimonials and Reviews]]
-GettingStarted
-Community
+[[Multi-Valued Variables]]
+[[Let Filter Run Prefix]]

editions/test/tiddlers/tests/data/genesis-widget/Block.tid

@@ -27,4 +27,4 @@ Block forced inline
 +
 title: ExpectedResult
 
-<div class=" tc-reveal"><p>Block</p></div><div class=" tc-reveal"><p>Block forced block</p></div><span class=" tc-reveal"><p>Block forced inline</p></span><p><span class=" tc-reveal">Inline</span><div class=" tc-reveal">Inline forced block</div><span class=" tc-reveal">Inline forced inline</span></p>
+<div class="tc-reveal"><p>Block</p></div><div class="tc-reveal"><p>Block forced block</p></div><span class="tc-reveal"><p>Block forced inline</p></span><p><span class="tc-reveal">Inline</span><div class="tc-reveal">Inline forced block</div><span class="tc-reveal">Inline forced inline</span></p>

editions/test/tiddlers/tests/data/let-filter-prefix/ResultList.tid

@@ -0,0 +1,12 @@
+title: LetFilterRunPrefix/ResultList
+description: Using the "let" filter run prefix to store result lists, not just single values
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$text text={{{ [all[tiddlers]] :let[[varname]] [(varname)sort[]join[,]] }}}/>
++
+title: ExpectedResult
+
+<p>$:/core,ExpectedResult,Output</p>

editions/test/tiddlers/tests/data/let-filter-prefix/ResultListUnnamedVariable.tid

@@ -0,0 +1,12 @@
+title: LetFilterRunPrefix/ResultListUnnamedVariable
+description: Using the "let" filter run prefix to store result lists, not just single values
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$text text={{{ [all[tiddlers]] :let[all[]tag[nothing]] [(varname)sort[]join[,]] }}}/>
++
+title: ExpectedResult
+
+<p></p>

editions/test/tiddlers/tests/data/let-filter-prefix/ShortcutSyntax.tid

@@ -0,0 +1,12 @@
+title: LetFilterRunPrefix/ShortcutSyntax
+description: Simple usage of "let" filter run prefix
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$text text={{{ [[magpie]] =>varname [<varname>] +[join[-]] }}}/>
++
+title: ExpectedResult
+
+<p>magpie</p>

editions/test/tiddlers/tests/data/let-filter-prefix/Simple.tid

@@ -0,0 +1,12 @@
+title: LetFilterRunPrefix/Simple
+description: Simple usage of "let" filter run prefix
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$text text={{{ [[magpie]] :let[[varname]] [<varname>] +[join[-]] }}}/>
++
+title: ExpectedResult
+
+<p>magpie</p>

editions/test/tiddlers/tests/data/multi-valued-variables/Function.tid

@@ -0,0 +1,18 @@
+title: MultiValuedVariables/Function
+description: Multi-valued functions
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\function myfunc() [all[tiddlers]sort[]]
+
+<$let varname=<<myfunc>>>
+<$text text={{{ [(varname)] +[join[-]] }}}/>
+</$let>
++
+title: ExpectedResult
+
+<p>
+$:/core-ExpectedResult-Output
+</p>

editions/test/tiddlers/tests/data/multi-valued-variables/MissingVariable.tid

@@ -0,0 +1,12 @@
+title: MultiValuedVariables/MissingVariable
+description: Using multivalued operands with a missing variable
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$text text={{{ [(varname)] }}}/>
++
+title: ExpectedResult
+
+<p></p>

editions/test/tiddlers/tests/data/multi-valued-variables/NegatedTitle.tid

@@ -0,0 +1,18 @@
+title: MultiValuedVariables/NegatedTitle
+description: Multi-valued operands
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$let
+	exclude={{{ $:/core Output }}}
+>
+<$text text={{{ [all[tiddlers]!title(exclude)] +[join[-]] }}}/>
+</$let>
++
+title: ExpectedResult
+
+<p>
+ExpectedResult
+</p>

editions/test/tiddlers/tests/data/multi-valued-variables/Operands.tid

@@ -0,0 +1,18 @@
+title: MultiValuedVariables/Operands
+description: Multi-valued operands
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\function myfunc() [all[tiddlers]sort[]]
+
+<$let varname=<<myfunc>>>
+<$text text={{{ [(varname)] +[join[-]] }}}/>
+</$let>
++
+title: ExpectedResult
+
+<p>
+$:/core-ExpectedResult-Output
+</p>

editions/test/tiddlers/tests/data/multi-valued-variables/Parameters.tid

@@ -0,0 +1,21 @@
+title: MultiValuedVariables/Parameters
+description: Multi-valued function parameters
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\function myfunc(input) [(input)sort[]]
+
+<$let
+	input={{{ [all[tiddlers]] }}}
+	output={{{ [function[myfunc],(input)] }}}
+>
+<$text text={{{ [(output)] +[join[-]] }}}/>
+</$let>
++
+title: ExpectedResult
+
+<p>
+$:/core-ExpectedResult-Output
+</p>

editions/test/tiddlers/tests/data/multi-valued-variables/ParametersShortcut.tid

@@ -0,0 +1,21 @@
+title: MultiValuedVariables/ParametersShortcut
+description: Multi-valued function parameters using shortcut syntax
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\function my.func(input) [(input)sort[]]
+
+<$let
+	input={{{ [all[tiddlers]] }}}
+	output={{{ [my.func(input)] }}}
+>
+<$text text={{{ [(output)] +[join[-]] }}}/>
+</$let>
++
+title: ExpectedResult
+
+<p>
+$:/core-ExpectedResult-Output
+</p>

editions/test/tiddlers/tests/data/multi-valued-variables/Simple.tid

@@ -0,0 +1,17 @@
+title: MultiValuedVariables/Simple
+description: Simple usage of multivalued assignments with the "let" widget
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+<$let varname={{{ [all[tiddlers]sort[]] }}}
+	varname2=<<varname>>>
+<$text text={{{ [(varname2)] +[join[-]] }}}/>
+</$let>
++
+title: ExpectedResult
+
+<p>
+$:/core-ExpectedResult-Output
+</p>

editions/test/tiddlers/tests/data/serialize/VoidElements.tid

@@ -0,0 +1,12 @@
+tags: $:/tags/wikitext-serialize-test-spec
+title: Serialize/VoidElements
+type: text/vnd.tiddlywiki
+
+This tests void elements like <br/> and <br> (without `/`).
+
+Line one<br>Line two
+Line three<br/>Line four
+
+<hr>
+
+Images are also void: <img src="test.png">

editions/test/tiddlers/tests/data/tabs-macro/expected-test-tabs-horizontal-a.tid

@@ -2,4 +2,4 @@ title: expected-test-tabs-horizontal-a
 type: text/html
 description: Horizontal tabs test - This is the expected HTML output from a test in test-wikitext-tabs-macro.js
 
-<p><div class="tc-tab-set "><div class="tc-tab-buttons "><button class="" data-tab-title="TabOne" role="switch">t 1</button><button aria-checked="true" class=" tc-tab-selected" data-tab-title="TabTwo" role="switch">t 2</button><button class="" data-tab-title="TabThree" role="switch">t 3</button><button class="" data-tab-title="TabFour" role="switch">TabFour</button></div><div class="tc-tab-divider "></div><div class="tc-tab-content "><div class=" tc-reveal" hidden="true"></div><div class=" tc-reveal"><p>Text tab 2</p></div><div class=" tc-reveal" hidden="true"></div><div class=" tc-reveal" hidden="true"></div></div></div></p>
+<p><div class="tc-tab-set "><div class="tc-tab-buttons "><button class="" data-tab-title="TabOne" role="switch">t 1</button><button aria-checked="true" class=" tc-tab-selected" data-tab-title="TabTwo" role="switch">t 2</button><button class="" data-tab-title="TabThree" role="switch">t 3</button><button class="" data-tab-title="TabFour" role="switch">TabFour</button></div><div class="tc-tab-divider "></div><div class="tc-tab-content "><div class="tc-reveal" hidden="true"></div><div class="tc-reveal"><p>Text tab 2</p></div><div class="tc-reveal" hidden="true"></div><div class="tc-reveal" hidden="true"></div></div></div></p>

editions/test/tiddlers/tests/data/tabs-macro/expected-test-tabs-horizontal-all.tid

@@ -2,4 +2,4 @@ title: expected-test-tabs-horizontal-all
 type: text/html
 description: Horizontal tabs with all parameters active. This is the expected HTML output from a test in test-wikitext-tabs-macro.js
 
-<p><div class="tc-tab-set "><div class="tc-tab-buttons "><button class="" data-tab-title="TabOne" role="switch">t 1</button><button aria-checked="true" class=" tc-tab-selected" data-tab-title="TabTwo" role="switch">t 2</button><button class="" data-tab-title="TabThree" role="switch">desc</button><button class="" data-tab-title="TabFour" role="switch">TabFour</button></div><div class="tc-tab-divider "></div><div class="tc-tab-content "><div class=" tc-reveal" hidden="true"></div><div class=" tc-reveal"><h2 class="">TabTwo</h2><p><p>Text tab 2</p></p></div><div class=" tc-reveal" hidden="true"></div><div class=" tc-reveal" hidden="true"></div></div></div></p>
+<p><div class="tc-tab-set "><div class="tc-tab-buttons "><button class="" data-tab-title="TabOne" role="switch">t 1</button><button aria-checked="true" class=" tc-tab-selected" data-tab-title="TabTwo" role="switch">t 2</button><button class="" data-tab-title="TabThree" role="switch">desc</button><button class="" data-tab-title="TabFour" role="switch">TabFour</button></div><div class="tc-tab-divider "></div><div class="tc-tab-content "><div class="tc-reveal" hidden="true"></div><div class="tc-reveal"><h2 class="">TabTwo</h2><p><p>Text tab 2</p></p></div><div class="tc-reveal" hidden="true"></div><div class="tc-reveal" hidden="true"></div></div></div></p>

editions/test/tiddlers/tests/data/tabs-macro/expected-test-tabs-vertical.tid

@@ -2,4 +2,4 @@ title: expected-test-tabs-vertical
 type: text/html
 description: Vertical tabs test -- This is the expected HTML output from the test in test-wikitext-tabs-macro.js
 
-<p><div class="tc-tab-set tc-vertical"><div class="tc-tab-buttons tc-vertical"><button class="" data-tab-title="TabOne" role="switch">t 1</button><button aria-checked="true" class=" tc-tab-selected" data-tab-title="TabTwo" role="switch">t 2</button><button class="" data-tab-title="TabThree" role="switch">t 3</button><button class="" data-tab-title="TabFour" role="switch">TabFour</button></div><div class="tc-tab-divider tc-vertical"></div><div class="tc-tab-content tc-vertical"><div class=" tc-reveal" hidden="true"></div><div class=" tc-reveal"><p>Text tab 2</p></div><div class=" tc-reveal" hidden="true"></div><div class=" tc-reveal" hidden="true"></div></div></div></p>
+<p><div class="tc-tab-set tc-vertical"><div class="tc-tab-buttons tc-vertical"><button class="" data-tab-title="TabOne" role="switch">t 1</button><button aria-checked="true" class=" tc-tab-selected" data-tab-title="TabTwo" role="switch">t 2</button><button class="" data-tab-title="TabThree" role="switch">t 3</button><button class="" data-tab-title="TabFour" role="switch">TabFour</button></div><div class="tc-tab-divider tc-vertical"></div><div class="tc-tab-content tc-vertical"><div class="tc-reveal" hidden="true"></div><div class="tc-reveal"><p>Text tab 2</p></div><div class="tc-reveal" hidden="true"></div><div class="tc-reveal" hidden="true"></div></div></div></p>

editions/test/tiddlers/tests/test-json-filters.js

@@ -143,6 +143,33 @@ describe("json filter tests", function() {
 		expect(wiki.filterTiddlers("[{First}jsonset:json[notjson]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}']);
 	});
 
+	it("should support the jsondelete operator", function() {
+		// Delete top-level object property
+		expect(wiki.filterTiddlers("[{First}jsondelete[a]]")).toEqual(['{"b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}']);
+		expect(wiki.filterTiddlers("[{First}jsondelete[b]]")).toEqual(['{"a":"one","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}']);
+		expect(wiki.filterTiddlers("[{First}jsondelete[c]]")).toEqual(['{"a":"one","b":"","d":{"e":"four","f":["five","six",true,false,null]}}']);
+		// Delete nested object property
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[e]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"f":["five","six",true,false,null]}}']);
+		// Delete array element
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[f],[0]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["six",true,false,null]}}']);
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[f],[1]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five",true,false,null]}}']);
+		// Delete using negative array index
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[f],[-1]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false]}}']);
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[f],[-2]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,null]}}']);
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[f],[-5]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["six",true,false,null]}}']);
+		// Delete from array
+		expect(wiki.filterTiddlers("[{Second}jsondelete[0]]")).toEqual(['["deux","trois",["quatre","cinq"]]']);
+		expect(wiki.filterTiddlers("[{Second}jsondelete[1]]")).toEqual(['["une","trois",["quatre","cinq"]]']);
+		expect(wiki.filterTiddlers("[{Second}jsondelete[-1]]")).toEqual(['["une","deux","trois"]']);
+		// Attempting to delete non-existent property should return unchanged
+		expect(wiki.filterTiddlers("[{First}jsondelete[missing-property]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}']);
+		expect(wiki.filterTiddlers("[{First}jsondelete[d],[missing]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}']);
+		// Attempting to delete root should return unchanged
+		expect(wiki.filterTiddlers("[{First}jsondelete[]]")).toEqual(['{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}']);
+		// Non-JSON input should return unchanged
+		expect(wiki.filterTiddlers("[{Third}jsondelete[a]]")).toEqual(["This is not JSON"]);
+	});
+
 	it("should support the format:json operator", function() {
 		expect(wiki.filterTiddlers("[{First}format:json[]]")).toEqual(["{\"a\":\"one\",\"b\":\"\",\"c\":1.618,\"d\":{\"e\":\"four\",\"f\":[\"five\",\"six\",true,false,null]}}"]);
 		expect(wiki.filterTiddlers("[{First}format:json[4]]")).toEqual(["{\n    \"a\": \"one\",\n    \"b\": \"\",\n    \"c\": 1.618,\n    \"d\": {\n        \"e\": \"four\",\n        \"f\": [\n            \"five\",\n            \"six\",\n            true,\n            false,\n            null\n        ]\n    }\n}"]);

editions/test/tiddlers/tests/test-widget-getVariableInfo.js

@@ -60,10 +60,10 @@ describe("Widget module", function() {
 			childNode = childNode.children[0];
 		}
 
-		expect(childNode.getVariableInfo("macro",{allowSelfAssigned:true}).params).toEqual([{name:"a",value:"aa"}]);
+		expect(childNode.getVariableInfo("macro",{allowSelfAssigned:true}).params).toEqual([{name:"a",value:"aa",multiValue:["aa"]}]);
 
 		// function params
-		expect(childNode.getVariableInfo("fn",   {allowSelfAssigned:true}).params).toEqual([{name:"f",value:"ff"}]);
+		expect(childNode.getVariableInfo("fn",   {allowSelfAssigned:true}).params).toEqual([{name:"f",value:"ff",multiValue:["ff"]}]);
 		// functions have a text and a value
 		expect(childNode.getVariableInfo("x",   {allowSelfAssigned:true}).text).toBe("fff");
 		expect(childNode.getVariableInfo("x",   {allowSelfAssigned:true}).srcVariable.value).toBe("[<fn>]");
@@ -73,7 +73,7 @@ describe("Widget module", function() {
 		expect(childNode.getVariableInfo("$my.widget", {allowSelfAssigned:true}).params).toEqual([{name:"w",default:"ww"}]);
 
 		// no params expected
-		expect(childNode.getVariableInfo("abc", {allowSelfAssigned:true})).toEqual({text:"def"});
+		expect(childNode.getVariableInfo("abc", {allowSelfAssigned:true})).toEqual({text:"def", resultList: [ "def" ]});
 
 		// debugger; Find code in browser
 

editions/tw5.com/tiddlers/Concatenating a text reference to create a URL.tid

@@ -0,0 +1,13 @@
+created: 20251021142729667
+modified: 20251021142729667
+tags: 
+title: Concatenating a text reference to create a URL
+type: text/vnd.tiddlywiki
+
+!! Concatenating variables and a text reference to create a URL
+
+<$macrocall $name=wikitext-example src="""<$let hash={{{ [<currentTiddler>encodeuricomponent[]] }}}>
+<a href=`${ [{!!base-url}] }$#$(hash)$`>this tiddler on tiddlywiki.com</a>
+</$let>"""/>
+
+See: [[Substituted Attribute Values]]

editions/tw5.com/tiddlers/Concatenating variables to create a URL.tid

@@ -0,0 +1,13 @@
+created: 20251021142733998
+modified: 20251021142733998
+tags: 
+title: Concatenating variables to create a URL
+type: text/vnd.tiddlywiki
+
+!! Concatenating strings and variables to create a URL
+
+<$macrocall $name=wikitext-example src="""<$let hash={{{ [<currentTiddler>encodeuricomponent[]] }}}>
+<a href=`http://tiddlywiki.com/#$(hash)$`>this tiddler on tiddlywiki.com</a>
+</$let>"""/>
+
+See: [[Substituted Attribute Values]]

editions/tw5.com/tiddlers/Deprecated Core Classes.tid

@@ -0,0 +1,13 @@
+created: 20251015120940754
+modified: 20251101092833913
+tags: $:/deprecated [[Core Classes]]
+title: Deprecated Core Classes
+type: text/vnd.tiddlywiki
+
+<<.warning "It is not recommended to use these classes for styling. Though tiddlywiki might still support them, they may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using them, and update existing code if possible. Be aware that this feature may cease to work at any time.">>
+
+These [[Core Classes]] are considered deprecated. It is not recommend to use them for styling.
+
+* `tc-tagged-*` <<.deprecated-since 5.1.16>> Use [[Custom styles by data-tags]] instead.
+* `tc-reveal` <<.deprecated-since 5.3.8>> for styling purposes as it is subject to change.
+* `tc-language-(language code)` <<.deprecated-since 5.3.8>> Please use [[:lang()|https://developer.mozilla.org/en-US/docs/Web/CSS/:lang]] instead.

editions/tw5.com/tiddlers/Deprecated core macros.tid

@@ -0,0 +1,31 @@
+created: 20251101085817414
+modified: 20251101091035398
+tags: [[Core Macros]] Macros $:/deprecated
+title: Deprecated core macros
+type: text/vnd.tiddlywiki
+
+<<.warning "It is discouraged to use the following macros. Though tiddlywiki might still support them, they may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible. Be aware that these macros may cease to work at any time. ">>
+
+Most deprecated macros are defined in [[$:/core/macros/deprecated]]. It is discouraged to use them.
+
+! Stylesheet Macros
+
+<<.deprecated-since 5.4.0>> The following core [[macros|Macros]] used to made it easy to specify alternative browser-specific properties when constructing a [[stylesheet|Cascading Style Sheets]] tiddler. They are deprecated after 2017 baseline is supported in v5.4.0:
+
+; `<<box-shadow shadow>>`
+: for the `x-box-shadow` properties
+
+; `<<filter filter>>`
+: for the `x-filter` properties
+
+; `<<transition transition>>`
+: for the `x-transition` properties
+
+; `<<transform-origin origin>>`
+: for the `x-transition-origin` properties
+
+; `<<background-linear-gradient gradient>>`
+: for the `x-linear-gradient` values of the `background-image` property
+
+; `<<column-count columns>>`
+: for the `x-column-count` property

editions/tw5.com/tiddlers/filters/examples/jsondelete.tid

@@ -0,0 +1,59 @@
+created: 20250115120000000
+modified: 20250115120000000
+tags: [[Operator Examples]] [[jsondelete Operator]]
+title: jsondelete Operator (Examples)
+
+<$let object-a="""{
+    "a": "one",
+    "b": "",
+    "c": "three",
+    "d": {
+        "e": "four",
+        "f": [
+            "five",
+            "six",
+            true,
+            false,
+            null
+        ],
+        "g": {
+            "x": "max",
+            "y": "may",
+            "z": "maize"
+        }
+    }
+}
+"""
+object-b="""{"a":"one","b":"","c":1.618,"d":{"e":"four","f":["five","six",true,false,null]}}"""
+array-a="""["une","deux","trois",["quatre","cinq"]]""">
+
+The examples below assume the following JSON object is contained in the variable `object-a`:
+
+<pre><<object-a>></pre>
+
+<<.operator-example 1 "[<object-a>jsondelete[a]]" "Delete a top-level object property">>
+<<.operator-example 2 "[<object-a>jsondelete[d],[e]]" "Delete a nested object property">>
+<<.operator-example 3 "[<object-a>jsondelete[d],[f],[0]]" "Delete the first element from an array">>
+<<.operator-example 4 "[<object-a>jsondelete[d],[f],[-1]]" "Delete the last element from an array using negative index">>
+<<.operator-example 5 "[<object-a>jsondelete[d],[f],[-2]]" "Delete the second-to-last element from an array using negative index">>
+<<.operator-example 6 "[<object-a>jsondelete[d],[g],[x]]" "Delete a deeply nested object property">>
+<<.operator-example 7 "[<object-a>jsondelete[]]" "If no parameters are specified, the JSON object is returned unchanged">>
+<<.operator-example 8 "[<object-a>jsondelete[missing]]" "If the property does not exist, the JSON object is returned unchanged">>
+
+The examples below assume the following JSON object is contained in the variable `object-b`:
+
+<pre><<object-b>></pre>
+
+<<.operator-example 9 "[<object-b>jsondelete[b]]" "Delete an empty string property">>
+<<.operator-example 10 "[<object-b>jsondelete[d],[f],[1]]" "Delete a middle element from an array">>
+
+The examples below assume the following JSON array is contained in the variable `array-a`:
+
+<pre><<array-a>></pre>
+
+<<.operator-example 11 "[<array-a>jsondelete[0]]" "Delete the first element from a top-level array">>
+<<.operator-example 12 "[<array-a>jsondelete[-1]]" "Delete the last element from a top-level array using negative index">>
+<<.operator-example 13 "[<array-a>jsondelete[3],[0]]" "Delete an element from a nested array">>
+
+<<.operator-example 14 "[<object-a>] [<object-b>] :and[jsondelete[a]]" "If the input consists of multiple JSON objects with matching properties, the property is deleted from all of them">>
+

editions/tw5.com/tiddlers/filters/examples/substitute Operator (Examples).tid

@@ -1,37 +1,60 @@
 created: 20230614225302905
-modified: 20230614233448662
+modified: 20251021140446753
 tags: [[Operator Examples]] [[substitute Operator]]
 title: substitute Operator (Examples)
 type: text/vnd.tiddlywiki
 
-\define time() morning
-\define field() modified
+!! Substitute operator parameters
+
+The following example uses a ''function definition'' and a ''function call'' with a ''filter expression''
+
+<<wikitext-example-without-html """\function f.text() [[Hi, I'm $1$ and I live in $2$]substitute[Bugs Bunny],[Rabbit Hole Hill]]
+
+<<f.text>>
+""">>
+
+---
+
+The following example uses a [[filtered transclusion|Transclusion in WikiText]] with a [[filter expression|Filter Syntax]] creating a link and a text output.
+
+<<wikitext-example-without-html """link: {{{ [[Hi, I'm $1$ and I live in $2$]substitute[Bugs Bunny],[Rabbit Hole Hill]] }}}
+
+text: <$text text={{{ [[Hi, I'm $1$ and I live in $2$]substitute[Bugs Bunny],[Rabbit Hole Hill]] }}}/>
+""">>
+
+
+!! Substitute variables and parameters
+
+The following example uses [[variable definitions|Pragma: \procedure]] "name", "address", a ''filtered transclusion'' assigned to a ''text-widget''. The variables "name" and "address" are used as ''substitute parameters''.
+
+<<wikitext-example-without-html """\procedure name() Bugs Bunny
+\procedure address() Rabbit Hole Hill
+
+<$text text={{{ [[Hi, I'm $1$ and I live in $2$]substitute<name>,<address>] }}}/>
+""">>
+
+!! Substitute $(variables)$
+
+The following examples use the variables "name" and "address" and directly substitute the with the [[attribute substitution|Substituted Attribute Values]] syntax. 
+
+<<wikitext-example-without-html """\procedure name() Bugs Bunny
+\procedure address() Rabbit Hole Hill
+
+<$text text=`Hi, I'm $(name)$ and I live in $(address)$`/>
+""">>
+
+!! Substitute a filter expression and a variable
+
+The following example uses a procedure, that defines the text with substitution placeholders. `$(field)$` is defined as a variable. `${ ... }$` is filtered <<.olink2 "substitution placeholder" to:"substitute">>.
+
+<<wikitext-example-without-html """\procedure field() modified
+
 \procedure sentence() This tiddler was last $(field)$ on ${[{!!modified}format:date[DDth MMM YYYY]]}$
-\define name() Bugs Bunny
-\define address() Rabbit Hole Hill
 
-!Substitute <<.op substitute[]>> operator parameters
-<<.operator-example 1 "[[Hi, I'm $1$ and I live in $2$]substitute[Bugs Bunny],[Rabbit Hole Hill]]">>
+<$text text={{{ [<sentence>substitute[]] }}}/>
 
-!Substitute variables
-This example uses the following variables:
+---
 
-* name: <$codeblock code=<<name>>/>
-* address: <$codeblock code=<<address>>/>
+<$text text=`This tiddler was last $(field)$ on ${[{!!modified}format:date[DDth MMM YYYY]]}$`/>
 
-<<.operator-example 2 "[[Hi, I'm $(name)$ and I live in $(address)$]substitute[]]">>
-
-!Substitute variables and operator parameters
-This example uses the following variable:
-
-* time: <$codeblock code=<<time>>/>
-
-<<.operator-example 3 "[[Something in the $(time)$ at $2$ about $1$ ]substitute[Maths],[the Library]]">>
-
-!Substitute a filter expression and a variable
-This example uses the following variables:
-
-* field: <$codeblock code=<<field>>/>
-* sentence: <$codeblock code=<<sentence>>/>
-
-<<.operator-example 4 "[<sentence>substitute[]]">>
+""">>

editions/tw5.com/tiddlers/filters/jsondelete.tid

@@ -0,0 +1,54 @@
+caption: jsondelete
+created: 20250115120000000
+modified: 20250115120000000
+op-input: a selection of JSON objects
+op-output: the JSON objects with the specified property deleted
+op-parameter: one or more indexes of the property to delete
+op-purpose: delete a property from JSON objects
+tags: [[Filter Operators]] [[JSON Operators]]
+title: jsondelete Operator
+
+<<.from-version "5.4.0">> The <<.op jsondelete>> operator is used to delete a property from JSON strings. See [[JSON in TiddlyWiki]] for background. See also the following related operators:
+
+* <<.olink jsonset>> to set values within JSON objects
+* <<.olink jsonget>> to retrieve the values of a property in JSON data
+* <<.olink jsontype>> to retrieve the type of a JSON value
+* <<.olink jsonindexes>> to retrieve the names of the fields of a JSON object, or the indexes of a JSON array
+* <<.olink jsonextract>> to retrieve a JSON value as a string of JSON
+
+Properties within a JSON object are identified by a sequence of indexes. In the following example, the value at `[a]` is `one`, and the value at `[d][f][0]` is `five`.
+
+```
+{
+    "a": "one",
+    "b": "",
+    "c": "three",
+    "d": {
+        "e": "four",
+        "f": [
+            "five",
+            "six",
+            true,
+            false,
+            null
+        ],
+        "g": {
+            "x": "max",
+            "y": "may",
+            "z": "maize"
+        }
+    }
+}
+```
+
+The <<.op jsondelete>> operator uses multiple parameters to specify the indexes of the property to delete. For object properties, the property is removed using JavaScript's `delete` operator. For array elements, the element is removed using `splice`, which shifts remaining elements.
+
+Negative indexes into an array are counted from the end, so -1 means the last item, -2 the next-to-last item, and so on.
+
+Indexes can be dynamically composed from variables and transclusions, e.g. `[<jsondata>jsondelete<variable>,{!!field},[0]]`.
+
+If the specified property does not exist, the JSON object is returned unchanged. If you attempt to delete the root object itself (by providing no indexes or a blank index), the JSON object is returned unchanged.
+
+If the input consists of multiple JSON objects, the property is deleted from all of them.
+
+<<.operator-examples "jsondelete">>

editions/tw5.com/tiddlers/filters/substitute Operator.tid

@@ -1,6 +1,6 @@
 caption: substitute
 created: 20230614223551834
-modified: 20230615173049692
+modified: 20251021124124967
 op-input: a [[selection of titles|Title Selection]]
 op-output: the input titles with placeholders for filter expressions, parameter and variables replaced with their corresponding values
 op-parameter: the <<.op substitute>> operator optionally accepts a variable number of parameters, see below for details
@@ -18,7 +18,7 @@ The <<.op substitute>> operator replaces any placeholders in the input titles in
 # variables
 
 |placeholder syntax|description|h
-|`$n$`|Text substitution of a parameter provided to the operator, where n is the position of the parameter starting with 1 for the first parameter. Unmatched placeholders pass through unchanged. |
+|`$n$`|Text substitution of a parameter provided to the operator, where n is the position of the parameter starting with 1 for the first parameter.<br>Unmatched placeholders pass through unchanged. |
 |`$(varname)$`|Text substitution of a variable. Undefined variables are replaced with an empty string. |
 |`${ filter expression }$`|Text substitution of the first result of evaluating a filter expression. In other words, if the filter returns multiple titles only the first one will be used. |
 

editions/tw5.com/tiddlers/filters/syntax/Interchangeable Filter Run Prefixes.tid

@@ -14,6 +14,7 @@ In technical / logical terms:
 |`-[run]` |`:except[run]` |difference of sets |... AND NOT run |
 |`~[run]` |`:else[run]` |else |... ELSE run |
 |`=[run]` |`:all[run]` |union of sets without de-duplication |... OR run |
+|`=>[run]` |`:let[run]` |<<.from-version "5.4.0">> assign results to a variable |... LET run |
 
 The input of a run is normally a list of all the non-[[shadow|ShadowTiddlers]] tiddler titles in the wiki (in no particular order).<br>But the `+` prefix can change this:
 

editions/tw5.com/tiddlers/filters/syntax/Let Filter Run Prefix.tid

@@ -0,0 +1,28 @@
+created: 20250307212252946
+from-version: 5.4.0
+modified: 20250307212252946
+rp-input: all titles from previous filter runs
+rp-output: an empty title list is always returned from the "let" filter run prefix
+rp-purpose: assign the title list resulting from previous filter runs to a multi-valued variable
+tags: [[Named Filter Run Prefix]]
+title: Let Filter Run Prefix
+type: text/vnd.tiddlywiki
+
+<$railroad text="""
+\start none
+\end none
+( ":let" )
+[[run|"Filter Run"]]
+"""/>
+
+The `:let` filter run prefix assigns the title list resulting from previous filter runs to a [[multi-valued variable|Multi-Valued Variable]]. The variable is named with the first result returned by the filter run.
+
+The variable is made available to the remaining [[filter runs|Filter Run]] in the [[filter expression|Filter Expression]]. Only the first item in the result list is returned when the variable is accessed in the usual way (or an empty string if the result list is empty). Using round brackets instead of angle brackets around a variable name as an operand retrieves the complete list of items in the result list.
+
+This prefix has an optional [[shortcut syntax|Shortcut Filter Run Prefix]] symbol `=>run`. For example:
+
+```
+=[<myfun1>] =[<myfun2>] =>myvar
+```
+
+The `:let` filter run prefix always clears the current result list.

editions/tw5.com/tiddlers/filters/syntax/Named Filter Run Prefix.tid

@@ -23,6 +23,7 @@ A named filter run prefix can precede any [[run|Filter Run]] of a [[filter expre
 [[<":or"> |"Or Filter Run Prefix"]] |
 [[<":reduce"> |"Reduce Filter Run Prefix"]] |
 [[<":sort">  /"v5.2.0"/ |"Sort Filter Run Prefix"]] |
+[[<":let">  /"v5.4.0"/ |"Let Filter Run Prefix"]] |
 [[<":then">  /"v5.3.0"/ |"Then Filter Run Prefix"]]) [[run|"Filter Run"]]
 """/>
 

editions/tw5.com/tiddlers/filters/syntax/Shortcut Filter Run Prefixes.tid

@@ -9,7 +9,7 @@ Shortcut prefixes are commonly used by advanced users because they are fast to t
 <$railroad text="""
 \start none
 \end none
-(-|:"+"|"-"|"~"|"=")
+(-|:"+"|"-"|"~"|"="|"=>")
 [[run|"Filter Run"]]
 """/>
 
@@ -23,7 +23,8 @@ If a run has:
 
 * the prefix `~`, if the filter output so far is an empty list then the output titles of the run are [[dominantly appended|Dominant Append]] to the filter's output. If the filter output so far is not an empty list then the run is ignored. <<.from-version "5.1.18">>
 
-* the prefix `=`, output titles are appended to the filter's output without de-duplication. <<.from-version "5.1.20">> 
+* the prefix `=`, output titles are appended to the filter's output without de-duplication. <<.from-version "5.1.20">>
 
+* the prefix `=>`, the input is assigned to the variable named with the output title. <<.from-version "5.4.0">>
 
 {{Interchangeable Filter Run Prefixes}}

editions/tw5.com/tiddlers/filters/title.tid

@@ -16,4 +16,6 @@ op-neg-output: the input, but with tiddler <<.place T>> filtered out if it exist
 
 <<.op title>> is a [[constructor|Selection Constructors]] (except in the form `!title`), but <<.olink2 "field:title" field>> is a [[modifier|Selection Constructors]].
 
+<<.from-version "5.4.0">> If the operand is quoted with round brackets then the <<.op title>> operator returns the complete list of titles assigned to the multi-valued variable. When negated, the title operator with multi-valued operands returns all the titles that are not present in the operand list.
+
 <<.operator-examples "title">>

editions/tw5.com/tiddlers/howtos/Concatenating text and variables using macro substitution.tid

@@ -6,7 +6,7 @@ type: text/vnd.tiddlywiki
 
 !! Important
 
-<<.from-version "5.3.0">> It is recommended to use [[substituted attributes|Substituted Attribute Values]] or the [[substitute filter operator|substitute Operator]] to concatenate text and variables.
+Since <<.from-version "5.3.0">> it is recommended to use [[substituted attributes|Substituted Attribute Values]] or the [[substitute filter operator|substitute Operator]] to concatenate text and variables.
 
 It's a frequent use case in ~TiddlyWiki that you will want to put the results of variables together with various bits of strings of text. This process in some programming languages is often referred to as "concatenating" text.
 

editions/tw5.com/tiddlers/macros/StylesheetMacros.tid

@@ -1,25 +1,10 @@
 created: 20150221181835000
-modified: 20230803034031256
+modified: 20251101090648379
 tags: Macros [[Core Macros]]
 title: Stylesheet Macros
 type: text/vnd.tiddlywiki
 
-The following core [[macros|Macros]] make it easy to specify alternative browser-specific properties when constructing a [[stylesheet|Cascading Style Sheets]] tiddler:
-
-;`<<box-shadow shadow>>`
-: for the `x-box-shadow` properties
-;`<<filter filter>>`
-: for the `x-filter` properties
-;`<<transition transition>>`
-: for the `x-transition` properties
-;`<<transform-origin origin>>`
-: for the `x-transition-origin` properties
-;`<<background-linear-gradient gradient>>`
-: for the `x-linear-gradient` values of the `background-image` property
-;`<<column-count columns>>`
-: for the `x-column-count` property
-
-The following macros are documented separately:
+The following stylesheet macros are documented separately:
 
 * <<.mlink colour>>
 * <<.mlink datauri>>

editions/tw5.com/tiddlers/releasenotes/5.3.8/#9133.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: enhancement
 change-category: translation
-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9133
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9133
 github-contributors: BramChen

editions/tw5.com/tiddlers/releasenotes/5.3.8/#9166.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: bugfix
 change-category: translation
-links: https://github.com/TiddlyWiki/TiddlyWiki5/issue/9166
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/issue/9166
 github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.3.8/#9175.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: bugfix
 change-category: palette
-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9175
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9175
 github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.3.8/#9184.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: enhancement
 change-category: translation
-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9184
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9184
 github-contributors: EvidentlyCube

editions/tw5.com/tiddlers/releasenotes/5.3.8/#9185.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: bugfix
 change-category: plugin
-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9185
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9185
 github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.3.8/32caeb69c3e7b75a80a84a1e14363e87175b164e.tid

@@ -4,7 +4,7 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: bugfix
 change-category: hackability
-links: https://github.com/TiddlyWiki/TiddlyWiki5/commit/32caeb69c3e7b75a80a84a1e14363e87175b164e
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/commit/32caeb69c3e7b75a80a84a1e14363e87175b164e
 github-contributors: Jermolene
 
 Reverted the [[change in v5.3.7|https://github.com/TiddlyWiki/TiddlyWiki5/pull/8721]] that broke the [[list-tagged-draggable Macro]]. The change involved updating some core macros to use procedures

editions/tw5.com/tiddlers/releasenotes/5.3.8/75502266176de9d4a5e1f89cd7f2e455b7a2f6da.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: enhancement
 change-category: translation
-links: https://github.com/TiddlyWiki/TiddlyWiki5/commit/75502266176de9d4a5e1f89cd7f2e455b7a2f6da
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/commit/75502266176de9d4a5e1f89cd7f2e455b7a2f6da
 github-contributors: superuser-does

editions/tw5.com/tiddlers/releasenotes/5.3.8/93d30f374da4a6b2037b335f7f7d4eddce8192db.tid

@@ -4,5 +4,5 @@ release: 5.3.8
 tags: $:/tags/ChangeNote
 change-type: bugfix
 change-category: usability
-links: https://github.com/TiddlyWiki/TiddlyWiki5/commit/93d30f374da4a6b2037b335f7f7d4eddce8192db
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/commit/93d30f374da4a6b2037b335f7f7d4eddce8192db
 github-contributors: Jermolene

editions/tw5.com/tiddlers/releasenotes/5.4.0/#8258.tid

@@ -0,0 +1,38 @@
+title: $:/changenotes/5.4.0/#8258
+description: Add ability to serialize WikiText AST nodes back to wikitext strings
+tags: $:/tags/ChangeNote
+release: 5.4.0
+change-type: feature
+change-category: developer
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/8258
+github-contributors: linonetwo
+
+This PR introduces a new utility `$tw.utils.serializeWikitextParseTree()` that can convert WikiText Abstract Syntax Tree (AST) nodes back into wikitext strings.
+
+There is also a utility `serializeAttribute` for a single attribute node, like an attribute of a widget.
+
+!! Use Cases
+
+* Programmatically manipulating wikitext content by modifying the AST, and use this to write it back
+* Building WYSIWYG editors
+* Creating wikitext formatters and linters
+
+!! Implementation
+
+* New core plugin `tiddlywiki/wikitext-serialize` containing most of the logic
+* Separate serialize handlers for each WikiText rule as `module-type: wikiruleserializer`
+* Test suite with tag `$:/tags/wikitext-serialize-test-spec`
+* It uses each parser's name as rule (`nextMatch.rule.name`), each AST node that needs serialization has a `type` property matching the rule name
+** HTML tags and widgets are handled by the `html` serializer
+
+!! Example Usage
+
+```javascript
+// Parse a tiddler's wikitext to AST
+var parseTree = $tw.wiki.parseTiddler("MyTiddler").tree;
+
+// Serialize AST back to wikitext string
+var wikitextString = $tw.utils.serializeWikitextParseTree(parseTree).trimEnd();
+```
+
+This feature offers new tools for JS plugin developers. It is not a user-facing change.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#8702 - darkmode-info-tiddler.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#8702/impacts/darkmode-info-tiddler
+changenote: $:/changenotes/5.4.0/#8702
+created: 20250901000000000
+modified: 20250901000000000
+tags: $:/tags/ImpactNote
+description: `$:/info/darkmode` has been superseded by `$:/info/browser/darkmode`
+impact-type: deprecation
+

editions/tw5.com/tiddlers/releasenotes/5.4.0/#8702 - palette-pluginisation.tid

@@ -0,0 +1,9 @@
+title: $:/changenotes/5.4.0/#8702/impacts/palette-pluginisation
+changenote: $:/changenotes/5.4.0/#8702
+created: 20250901000000000
+modified: 20250901000000000
+tags: $:/tags/ImpactNote
+description: Existing colour palettes have been moved to a new "palettes-legacy" plugin
+impact-type: pluginisation
+
+Add the plugin to your wiki in order to continue using the legacy palettes.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#8702.tid

@@ -0,0 +1,27 @@
+title: $:/changenotes/5.4.0/#8702
+description: Colour handling improvements
+release: 5.4.0-disabled because this PR is not yet merged
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: hackability
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/8702
+github-contributors: Jermolene
+
+This PR brings several new features for end users:
+
+* Automatically switching between a dark and light palette as the operating system setting changes (and to do so without making the wiki dirty)
+* Customisation options for palettes. For example, users might choose a base hue, with the colours of the palette automatically adapting to it
+* A generalisation of the dark vs. light mechanism to allow an arbitrary number of distinct schemes that are dynamically selected. For example, a palette that has a different scheme for night, morning, day and evening that automatically change with the time of day
+
+There are also new capabilities for palette authors:
+
+* Inheritance for palettes, making it easy to create chains of variants of a base palette
+* Self contained palettes that can contain both dark and light variants (or variants for any other custom scheme)
+
+To make all of these new features possible, this PR also includes some useful new general purpose mechanisms and features:
+
+* Background actions that are triggered whenever there is a change to the results of a specified filter
+* Several new filter operators for manipulating colour values. The underlying functionality comes from the [[color.js|https://colorjs.io/]] library
+* New media query tracking mechanism that can track the results of any CSS media query (not just dark mode), storing the results in a shadow `$:/info/...` tiddler
+* New `changecount` filter operator
+* New `:apply` filter run prefix (to be replaced by the `:let` filter run prefix in [[#8972|https://github.com/TiddlyWiki/TiddlyWiki5/pull/8972]]))

editions/tw5.com/tiddlers/releasenotes/5.4.0/#8972.tid

@@ -0,0 +1,16 @@
+title: $:/changenotes/5.4.0/#8972
+description: Multi-valued variables and let filter run prefix
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: hackability
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/8972
+github-contributors: Jermolene
+
+This PR introduces a new filter run prefix `:let` that assigns the result of the filter run to a variable that is made available for the remaining filter runs of the filter expression. It solves the problem that previously it was impossible to compute values for filter operator parameters; parameters could only be a literal string, text reference or variable reference.
+
+This PR also introduces multi-valued variables, the ability to store a list of results in a variable, not just a single string. They can be assigned with the new `:let` filter run prefix, or the existing `<$let>` widget. The full list of values can be retrieved using round brackets instead of the usual angle brackets. In all other contexts only the first item in the list is used as the variable value.
+
+* [[Multi-Valued Variables]]
+* [[Let Filter Run Prefix]]
+* [[LetWidget]]

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9078.tid

@@ -0,0 +1,16 @@
+title: $:/changenotes/5.4.0/#9078
+description: Web server get-file route now supports HTTP Range headers and streaming
+tags: $:/tags/ChangeNote
+release: 5.4.0
+change-type: enhancement
+change-category: nodejs
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9078
+github-contributors: linonetwo
+
+The web server's `get-file` route now supports HTTP Range requests and file streaming, enabling better loading and playback of large media files.
+
+!! Features
+
+* HTTP Range header: Enables partial content delivery with `206 Partial Content` responses, which is used when the user drags the progress bar in video/audio playback
+* Streaming file delivery: Browsers can now properly seek and stream video files from the `/files/` directory. Files are read using Node.js streams for better performance and memory efficiency.
+* Resumable downloads: To save interrupted downloads

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9103.tid

@@ -0,0 +1,18 @@
+title: $:/changenotes/5.4.0/#9103
+description: Add support for commands and startups which return promises
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: developer
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9103
+github-contributors: Arlen22
+
+This adds support for async functions to commands and startups. 
+
+In both `synchronous: true` and `synchronous: false` mode, if you return a promise (manually or by using the async keyword), it will wait for the promise to resolve, and then proceed using the resolved value as the return value of the function. 
+
+Importantly, in `synchronous: false` mode, returning a promise will not change the callback behavior. So you can safely use an async function and still call the callback to continue execution. 
+
+Previously, in `synchronous: true` mode, returning a promise would have just logged the promise to console and halted execution. Now the promise will be awaited, and if the value is truthy, it will be logged to console and halt execution. If the promise resolves to a falsy value, execution will continue. This is the main breaking change, but since logging an opaque promise to console is the most useless of all error messages, this is unlikely to seriously break anything in practice. Throwing anything, truthy or not, will still stop execution (in `synchronous: true` mode). 
+
+This also does not add any error handling code. Rejected promises should still be logged to console as unhandled rejections just as uncaught exceptions are currently. 

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9118.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9118
+description: Update highlightjs plugin
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: plugin
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9118
+github-contributors: Leilei332
+
+Update highlightjs version to 11.11.1

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9119 - sticky-flag.tid

@@ -0,0 +1,7 @@
+title: $:/changenotes/5.4.0/#9119/impacts/sticky-flag
+changenote: $:/changenotes/5.4.0/#9119
+created: 20251114082949025
+modified: 20251114082949025
+tags: $:/tags/ImpactNote
+description: Tiddlywiki no longer works on old browsers that doesn't support [[sticky flag|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/sticky]].
+impact-type: compatibility-break

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9119.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9119
+description: Use sticky flag to improve regexp search performance
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: performance
+change-category: internal
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9118
+github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9131 - strikethrough.tid

@@ -0,0 +1,9 @@
+title: $:/changenotes/5.4.0/#9131/impacts/strikethrough
+changenote: $:/changenotes/5.4.0/#9131
+created: 20250901000000000
+modified: 20250901000000000
+tags: $:/tags/ImpactNote
+description: CSS rules using `strike` selector will broken
+impact-type: compatibility-break
+
+`strike` should be replaced by `s`.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9131.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9131
+description: Render s tag instead of strike
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: deprecation
+change-category: internal
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9118
+github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9135.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9135
+description: Update ESLint target to ES2017
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: developer
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9135
+github-contributors: Arlen22
+
+Updates the eslint config to check for syntax newer than ES2017. This uses a plugin to check for newer syntax, for better error messages, and may need to be updated regularly along with eslint to catch the latest features. 

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9154.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9154
+description: Allow button widget to use all aria attributes
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: widget
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9154
+github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9167.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9167
+description: Allow link widget to use all aria attributes
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: widget
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9167
+github-contributors: Leilei332
+
+Allow LinkWidget to use all aria attributes directly.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9183 - core-server-pluginisation.tid

@@ -0,0 +1,9 @@
+title: $:/changenotes/5.4.0/#9183/impacts/core-server-pluginisation
+changenote: $:/changenotes/5.4.0/#9183
+created: 20250901000000000
+modified: 20250901000000000
+tags: $:/tags/ImpactNote
+description: Server components of the core have been moved into a new `$:/core-server` plugin
+impact-type: pluginisation
+
+It is not necessary for wikis to explicitly include the `$:/core-server` plugin.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9183.tid

@@ -2,9 +2,9 @@ title: $:/changenotes/5.4.0/#9183
 description: Offload server-only components to a plugin
 release: 5.4.0
 tags: $:/tags/ChangeNote
-change-type: pluginisation
+change-type: performance
 change-category: internal
-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9183 https://github.com/TiddlyWiki/TiddlyWiki5/pull/9288
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9183 https://github.com/TiddlyWiki/TiddlyWiki5/pull/9288
 github-contributors: Jermolene Leilei332
 
 This change reduces the size of the core plugin by 119.3KB or about 4.5%.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9235.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9235
+description: Fix nested `span.tc-keyboard` element in core
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: internal
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9235 https://github.com/TiddlyWiki/TiddlyWiki5/pull/9325
+github-contributors: Leilei332
+
+Removes nested `<span class="tc-keyboard">` element in core search field.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9242 - deprecate-css-macros.tid

@@ -0,0 +1,7 @@
+title: $:/changenotes/5.4.0/#9242/impacts/drpecate-css-macros
+changenote: $:/changenotes/5.4.0/#9242
+created: 20250901000000000
+modified: 20250901000000000
+tags: $:/tags/ImpactNote
+description: Currently all the CSS property macros are deprecated
+impact-type: deprecation

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9242.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9242
+description: Deprecate CSS macros supported in 2017 baseline
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: deprecation
+change-category: developer
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9242
+github-contributors: Leilei332
+
+Mark CSS macros supported in 2017 baseline as deprecated. They are moved to [[$:/core/macros/deprecated]] now.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9243.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9243
+description: Replace CSS property macros in Snow White theme
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: theme
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9243
+github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9253 - textencoder.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9253/impacts/textencoder
+changenote: $:/changenotes/5.4.0/#9253
+created: 20251115041709112
+modified: 20251115041709112
+tags: $:/tags/ImpactNote
+description: Encoding & decoding base64 no longer works on browsers that doesn't support [[TextEncoder|https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder]] or [[TextDecoder|https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder]]
+impact-type: compatibility-break
+

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9253.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9253
+description: Switch to native support for converting utf-8 between base64
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: performance
+change-category: internal
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9253
+github-contributors: Leilei332
+
+Replace `base64-utf8` module with `TextEncoder` method to convert between utf-8 and Base64.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9275 - remove-range-widget-ie.tid

@@ -0,0 +1,7 @@
+title: $:/changenotes/5.4.0/#9275/impacts/remove-range-ie
+changenote: $:/changenotes/5.4.0/#9275
+created: 20250901000000000
+modified: 20250901000000000
+tags: $:/tags/ImpactNote
+description: RangeWidget will not work on Internet Explorer 10
+impact-type: compatibility-break

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9275.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9275
+description: Remove support for Internet Explorer in RangeWidget
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: deprecation
+change-category: widget
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9275
+github-contributors: Leilei332

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9287.tid

@@ -4,7 +4,7 @@ release: 5.4.0
 tags: $:/tags/ChangeNote
 change-type: enhancement
 change-category: internal
-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9287
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9287
 github-contributors: Jermolene
 
 Doing so enables us to filter and group changes. For example, we could show all the breaking changes between two releases.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9295.tid

@@ -0,0 +1,14 @@
+title: $:/changenotes/5.4.0/#9295
+description: Markdown: Fix missing inline support and macrocall args parsing error
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: bugfix
+change-category: plugin
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9295
+github-contributors: cdruan
+
+* Fix markdown parser to respect ''parseAsInline'' option [[#8917|https://github.com/TiddlyWiki/TiddlyWiki5/pull/8917]].
+
+* Fix improper parsing of macrocall, whenenver args contain `>` character.
+
+* Use ''$tw.log.MARKDOWN'' flag to enable debug messages.

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9305.tid

@@ -0,0 +1,13 @@
+title: $:/changenotes/5.4.0/#9305
+description: Let tiddler modules overwrite shadow modules with the same exports but different names
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: bugfix
+change-category: internal
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9305
+github-contributors: yaisog
+
+Tiddlers were previously processed before shadows during module registration. The shadow modules registration algorithm only checked for a matching title to prevent overwriting, but a differently named tiddler with the same exports would be overwritten by a shadow. This change swaps the order of $tw.wiki.defineTiddlerModules() and $tw.wiki.defineShadowModules() in boot.js, so that tiddlers are processed after shadows and can therefore override them.
+
+Each group (tiddlers or shadows) is sorted alphabetically, so plugin shadows would previously correctly overwrite core shadows (assuming their name starts with $:/plugins/), which remains unchanged. This change only affects module tiddlers that have the same export as a shadow, but a different name.
+

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9313.tid

@@ -0,0 +1,10 @@
+title: $:/changenotes/5.4.0/#9313
+description: Set modal's mask-closable attribute to yes by default
+release: 5.4.0
+tags: $:/tags/ChangeNote
+change-type: enhancement
+change-category: usability
+github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9313
+github-contributors: Leilei332
+
+

editions/tw5.com/tiddlers/releasenotes/5.4.0/#9316 - currentcolor.tid

@@ -0,0 +1,8 @@
+title: $:/changenotes/5.4.0/#9316/impacts/currentcolor
+changenote: $:/changenotes/5.4.0/#9316
+created: 20251115032340986
+modified: 20251115032340986
+tags: $:/tags/ImpactNote
+description: SVG icons will inherit colors instead of using `#333333` if its parent element has `color` property set
+impact-type: compatibility-break
+