In previous versions of TiddlyWiki, there were some special character sequences in tiddler titles that would break certain features. For example, a tiddler title ending in double quotes would cause the [[Table-of-Contents Macros]] to render incorrectly.
As of 5.1.18, many of these problems have been fixed by refactoring the features to use the latest abilities of wikitext:
Note that using certain characters in tiddler titles will still prevent some features from being used correctly. For example, two vertical bar characters are used in the double curly braces transclusion syntax to separate the tiddler title from the template title: `{{title||template}}`. However, although it would be impossible to transclude a tiddler called `title||template` using that syntax, one could still transclude it using `<$transclude tiddler="title||template"/>`.
* Deprecating the existing `--server` command in favour of a new `--listen` command using the new NamedCommandParameters support for named parameters that can be specified in any order
This release [[adds|https://github.com/Jermolene/TiddlyWiki5/commit/acaa07a964a004759ddb8fb755484918b3322815]] a new commenting plugin -- see $:/plugins/tiddlywiki/comments
Support for running TiddlyWiki as a Lambda function has been [[improved|https://github.com/Jermolene/TiddlyWiki5/commit/d6a0b06f024e14e9c0a57df5d2b80c8a1cdbd1c2]] with support for GZip compression of the JSON payload.
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/cfb2d7c9c8d899729b67864070d1958b35cc0ca2]] support for splash screens to be shown while TiddlyWiki is loading -- see [[Creating a splash screen]]
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/3bfa9c6f100cfd7107f2c5bf4cfc5dd40a93d54d]] persistent indicators at the bottom of the window showing any hidden drafts
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/7dbe117bc55a9cda91ce7b480525a2b2a70b8229]] current username (if set) to the title of draft tiddlers, making them easier to identify in multiuser scenarios
* [[Extended|https://github.com/Jermolene/TiddlyWiki5/issues/3255]] permalink/permaview to copy the URL to the clipboard as well as updating the address bar. This behaviour can be customised in $:/ControlPanel settings
* [[Improved|https://github.com/Jermolene/TiddlyWiki5/commit/d96c84426484747ab19d92b1d9f49e01c9dad985]] saving to use the $:/SiteTitle as the basis of the filename
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/09112ed455e7c4be2e50e88c00f370d726d71f64]] support for [[webp|https://en.wikipedia.org/wiki/WebP]], [[heic and heif|https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format]] image formats
* [[Added|https://github.com/Jermolene/TiddlyWiki5/pull/3558]] a new filter prefix `~` allowing if-then-else logic within filters -- see [[Filter Expression]]
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/33dd367a6548824567995bb48e87eece755681e8]] a new [[subfilter Operator]] to allow nested filters to be used
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/849844be12196781017b3a517839c4721771efd7]] new ''stateTitle'', ''stateField'' and ''stateIndex'' attributes to the ButtonWidget and the RevealWidget, making it possible to use state tiddlers whose titles contain `!!` or `##`
* [[Enhanced|https://github.com/Jermolene/TiddlyWiki5/commit/d6a0b06f024e14e9c0a57df5d2b80c8a1cdbd1c2]] the [[search Operator]] to support searching arbitrary lists of fields, literal searches, whitespace-tolerant searches and regexp searches
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/763f8afaf2dc7dcaa2d4a492887a944d84c4fed2]] new [[contains Operator]] for searching within list fields
* [[Added|https://github.com/Jermolene/TiddlyWiki5/issues/3396]] support for a navigation scroll offset to avoid navigating to tiddlers resulting in them being obscured under a `position:fixed` top menu bar -- see [[Hidden Setting: Scroll Top Adjustment]]
* [[Extended|https://github.com/Jermolene/TiddlyWiki5/commit/3140ff9e490cc2e725c0d02edab8db93009d74b2]] [[WidgetMessage: tm-full-screen]] message to support forcing the status instead of just toggling it
* [[Refactored|https://github.com/Jermolene/TiddlyWiki5/pull/2758]] the sidebar to make it be dynamically built from the tag <<tag "$:/tags/SideBarSegment">>
* [[Refactored|https://github.com/Jermolene/TiddlyWiki5/commit/19f7287a536e48225ec706589ffb307dfc991c9e]] the tiddler info panel to make it be dynamically built from the tag <<tag "$:/tags/TiddlerInfoSegment">>
* [[Added|https://github.com/Jermolene/TiddlyWiki5/pull/3346]] new [[range Operator]] for generating ranges of numbers
* [[Added|https://github.com/Jermolene/TiddlyWiki5/pull/3360]] palette support for `<select>` element colouring
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/bef3242075b6d962b7963b9c9c7042c39198fc8f]] new text editor operation ''save-selection'' -- see [[WidgetMessage: tm-edit-text-operation]]
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/f54a0a11bce9e47542df32610fae489f4a1dba8c]] support for editor toolbar buttons to have action widgets
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/2e51f08bef8656fdca83fff6163dc67cbaefa2d4]] support for rebasing headings at render time -- see [[tv-adjust-heading-level Variable]]
* [[Added|https://github.com/Jermolene/TiddlyWiki5/pull/3423]] experimental support for packaging TiddlyWiki's JavaScript core into an external script [[for use with the new Web Server enhancements|Using the external JavaScript template]]
* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/fe85845c3ce78ff102e411d01873912b3de8705e]] new `\import` [[Pragma]] as a more concise alternative to using the ImportVariablesWidget directly
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/35cbb127a3c21b7047517f1eeeff571a420b82ae]] problem with unwanted variable substitutions by restricting variable substitutions to macros defined with the ''define'' pragma
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/c72e4f01f1a3051e169593a217bffab8eec279f6]] problem with the 'excise' editor toolbar button not showing if the tiddler type is "text/vnd.tiddlywiki"
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/929b0c98330ad25aa4a32cd201274a6e89cd8902]] problem with generation of wifi QR codes
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/pull/3334]] problem with using full screen on secondary windows
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/a3a4c28143138ca2bde1b8426c910b5e3d6a7110]] subtle bug whereby the RevealWidget was not refreshing properly when the state tiddler of a popup changed
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/issues/3373]] problem with malformed HTML entities
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/874318091e20293c6f141080cc4330eb7aa02273]] crash when passing illegal arguments to the [[decodeuri Operator]] and [[decodeuricomponent Operator]]
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/457f03798c69f2053894d9971d4b187521c0d9ad]] errors when a popup blocker blocks opening a new window
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/3aae643e140044e440673772d90ebaf0be18ec1f]] problems using a lazily loaded tidler as a state tiddler with the RevealWidget
* [[Fixed|https://github.com/Jermolene/TiddlyWiki5/commit/33ba69e852966d7c5449842a95636024857d7177]] problem with modals not appearing in the correct window
[[@Jermolene|https://github.com/Jermolene]] would like to thank the contributors to this release who have generously given their time to help improve TiddlyWiki: