diff --git a/LICENSE b/LICENSE
index 4a503dc1..90add8f1 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2019 Calvin Rose and contributors
+Copyright (c) 2020 Calvin Rose and contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
diff --git a/Makefile b/Makefile
index 8ddf1e32..3dcd2fbb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose
+# Copyright (c) 2020 Calvin Rose
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/meson.build b/meson.build
index a162ee83..49fc2227 100644
--- a/meson.build
+++ b/meson.build
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose and contributors
+# Copyright (c) 2020 Calvin Rose and contributors
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/src/boot/array_test.c b/src/boot/array_test.c
index 1b743b72..db2e6d9d 100644
--- a/src/boot/array_test.c
+++ b/src/boot/array_test.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/boot/boot.c b/src/boot/boot.c
index 75034439..0caf017b 100644
--- a/src/boot/boot.c
+++ b/src/boot/boot.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/boot/boot.janet b/src/boot/boot.janet
index 17cf4c3c..0fd72133 100644
--- a/src/boot/boot.janet
+++ b/src/boot/boot.janet
@@ -2273,7 +2273,7 @@
 
   (when (and (not *compile-only*) (or *should-repl* *no-file*))
     (if-not *quiet*
-      (print "Janet " janet/version "-" janet/build "  Copyright (C) 2017-2019 Calvin Rose"))
+      (print "Janet " janet/version "-" janet/build "  Copyright (C) 2017-2020 Calvin Rose"))
     (defn noprompt [_] "")
     (defn getprompt [p]
       (def [line] (parser/where p))
diff --git a/src/boot/buffer_test.c b/src/boot/buffer_test.c
index 34596fc3..f5348e51 100644
--- a/src/boot/buffer_test.c
+++ b/src/boot/buffer_test.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/boot/number_test.c b/src/boot/number_test.c
index ec75df78..aa05ae76 100644
--- a/src/boot/number_test.c
+++ b/src/boot/number_test.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/boot/system_test.c b/src/boot/system_test.c
index c0a6b199..3a1de65d 100644
--- a/src/boot/system_test.c
+++ b/src/boot/system_test.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/boot/table_test.c b/src/boot/table_test.c
index 148a43c5..91c14144 100644
--- a/src/boot/table_test.c
+++ b/src/boot/table_test.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/conf/janetconf.h b/src/conf/janetconf.h
index 3c1c1f7e..43dbe076 100644
--- a/src/conf/janetconf.h
+++ b/src/conf/janetconf.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/abstract.c b/src/core/abstract.c
index 0767fe76..f13e7910 100644
--- a/src/core/abstract.c
+++ b/src/core/abstract.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/array.c b/src/core/array.c
index fa529e9d..22a929cf 100644
--- a/src/core/array.c
+++ b/src/core/array.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/asm.c b/src/core/asm.c
index d586fe1c..392758a8 100644
--- a/src/core/asm.c
+++ b/src/core/asm.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/buffer.c b/src/core/buffer.c
index 313a5e29..39d774e8 100644
--- a/src/core/buffer.c
+++ b/src/core/buffer.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/bytecode.c b/src/core/bytecode.c
index 4991ddfe..265fbb27 100644
--- a/src/core/bytecode.c
+++ b/src/core/bytecode.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/capi.c b/src/core/capi.c
index 76de6fea..28c59ea7 100644
--- a/src/core/capi.c
+++ b/src/core/capi.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/cfuns.c b/src/core/cfuns.c
index e3adf293..da67fb99 100644
--- a/src/core/cfuns.c
+++ b/src/core/cfuns.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/compile.c b/src/core/compile.c
index bfa095e1..c388c37d 100644
--- a/src/core/compile.c
+++ b/src/core/compile.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/compile.h b/src/core/compile.h
index 8171f49a..f05e08a3 100644
--- a/src/core/compile.h
+++ b/src/core/compile.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/corelib.c b/src/core/corelib.c
index 3f55564a..683c5b68 100644
--- a/src/core/corelib.c
+++ b/src/core/corelib.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/debug.c b/src/core/debug.c
index 67ed7339..3e79c641 100644
--- a/src/core/debug.c
+++ b/src/core/debug.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/emit.c b/src/core/emit.c
index 49d02685..c20fc836 100644
--- a/src/core/emit.c
+++ b/src/core/emit.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/emit.h b/src/core/emit.h
index 59daf86c..e9608a5c 100644
--- a/src/core/emit.h
+++ b/src/core/emit.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/features.h b/src/core/features.h
index d0b52139..cac3981f 100644
--- a/src/core/features.h
+++ b/src/core/features.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/fiber.c b/src/core/fiber.c
index f38dfc26..5e4a0845 100644
--- a/src/core/fiber.c
+++ b/src/core/fiber.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/fiber.h b/src/core/fiber.h
index 28b7b9c9..8afbe3f7 100644
--- a/src/core/fiber.h
+++ b/src/core/fiber.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/gc.c b/src/core/gc.c
index 11218270..5201192c 100644
--- a/src/core/gc.c
+++ b/src/core/gc.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/gc.h b/src/core/gc.h
index f0ffc725..29b47332 100644
--- a/src/core/gc.h
+++ b/src/core/gc.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/inttypes.c b/src/core/inttypes.c
index 9c7e29c5..8ae7b3df 100644
--- a/src/core/inttypes.c
+++ b/src/core/inttypes.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose & contributors
+* Copyright (c) 2020 Calvin Rose & contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/io.c b/src/core/io.c
index 2f164ae8..7110491d 100644
--- a/src/core/io.c
+++ b/src/core/io.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/marsh.c b/src/core/marsh.c
index 5c203712..263dec39 100644
--- a/src/core/marsh.c
+++ b/src/core/marsh.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/math.c b/src/core/math.c
index e963cf83..49b45ec0 100644
--- a/src/core/math.c
+++ b/src/core/math.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/os.c b/src/core/os.c
index 85be132f..ca463639 100644
--- a/src/core/os.c
+++ b/src/core/os.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/parse.c b/src/core/parse.c
index 3ae51e57..899950e3 100644
--- a/src/core/parse.c
+++ b/src/core/parse.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/peg.c b/src/core/peg.c
index defe8346..e4f36a7e 100644
--- a/src/core/peg.c
+++ b/src/core/peg.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/pp.c b/src/core/pp.c
index 568c3ce3..07b3f549 100644
--- a/src/core/pp.c
+++ b/src/core/pp.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/regalloc.c b/src/core/regalloc.c
index 6b25d03a..0e12aff1 100644
--- a/src/core/regalloc.c
+++ b/src/core/regalloc.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/regalloc.h b/src/core/regalloc.h
index 46110636..d1872bb0 100644
--- a/src/core/regalloc.h
+++ b/src/core/regalloc.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/run.c b/src/core/run.c
index bf098c9d..ada14555 100644
--- a/src/core/run.c
+++ b/src/core/run.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/specials.c b/src/core/specials.c
index 4eb61e6c..d6b0aa92 100644
--- a/src/core/specials.c
+++ b/src/core/specials.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/state.h b/src/core/state.h
index 365926bb..bd3789c4 100644
--- a/src/core/state.h
+++ b/src/core/state.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/string.c b/src/core/string.c
index b7d40931..a8b5758d 100644
--- a/src/core/string.c
+++ b/src/core/string.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/strtod.c b/src/core/strtod.c
index bb9948ad..05dfac9f 100644
--- a/src/core/strtod.c
+++ b/src/core/strtod.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/struct.c b/src/core/struct.c
index 6530c5c8..f23c0bd1 100644
--- a/src/core/struct.c
+++ b/src/core/struct.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/symcache.c b/src/core/symcache.c
index 90c4ea6c..8e887d47 100644
--- a/src/core/symcache.c
+++ b/src/core/symcache.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/symcache.h b/src/core/symcache.h
index e42e6d2b..d3274155 100644
--- a/src/core/symcache.h
+++ b/src/core/symcache.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/table.c b/src/core/table.c
index 41d18fe0..dc719ef2 100644
--- a/src/core/table.c
+++ b/src/core/table.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/thread.c b/src/core/thread.c
index 17fea302..16ce09f2 100644
--- a/src/core/thread.c
+++ b/src/core/thread.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/tuple.c b/src/core/tuple.c
index c3961a92..a75c846b 100644
--- a/src/core/tuple.c
+++ b/src/core/tuple.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/typedarray.c b/src/core/typedarray.c
index f3da7f65..ee290607 100644
--- a/src/core/typedarray.c
+++ b/src/core/typedarray.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose & contributors
+* Copyright (c) 2020 Calvin Rose & contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/util.c b/src/core/util.c
index 1040314d..c9054523 100644
--- a/src/core/util.c
+++ b/src/core/util.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/util.h b/src/core/util.h
index 3ae91334..7c7f6919 100644
--- a/src/core/util.h
+++ b/src/core/util.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/value.c b/src/core/value.c
index 59948683..7071aa70 100644
--- a/src/core/value.c
+++ b/src/core/value.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/vector.c b/src/core/vector.c
index 5393e5aa..794da7e1 100644
--- a/src/core/vector.c
+++ b/src/core/vector.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/vector.h b/src/core/vector.h
index cf5fdbf3..42e63da7 100644
--- a/src/core/vector.h
+++ b/src/core/vector.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/vm.c b/src/core/vm.c
index 0f1107cf..64ac9139 100644
--- a/src/core/vm.c
+++ b/src/core/vm.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/core/wrap.c b/src/core/wrap.c
index abfc4136..eef452eb 100644
--- a/src/core/wrap.c
+++ b/src/core/wrap.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/include/janet.h b/src/include/janet.h
index bc786446..f0a20ac5 100644
--- a/src/include/janet.h
+++ b/src/include/janet.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/mainclient/line.c b/src/mainclient/line.c
index e0cf252b..3c264012 100644
--- a/src/mainclient/line.c
+++ b/src/mainclient/line.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/mainclient/line.h b/src/mainclient/line.h
index eced3d13..5ff5929b 100644
--- a/src/mainclient/line.h
+++ b/src/mainclient/line.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/src/mainclient/main.c b/src/mainclient/main.c
index 8883fb90..2dbacbdf 100644
--- a/src/mainclient/main.c
+++ b/src/mainclient/main.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/test/amalg/main.c b/test/amalg/main.c
index 59746b92..4521ab59 100644
--- a/test/amalg/main.c
+++ b/test/amalg/main.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/test/install/testmod.c b/test/install/testmod.c
index 5b7b89e3..d104e4c9 100644
--- a/test/install/testmod.c
+++ b/test/install/testmod.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose and contributors
+* Copyright (c) 2020 Calvin Rose and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/test/suite0.janet b/test/suite0.janet
index e79ec397..70c3e6a8 100644
--- a/test/suite0.janet
+++ b/test/suite0.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose
+# Copyright (c) 2020 Calvin Rose
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite1.janet b/test/suite1.janet
index d6369107..3541f227 100644
--- a/test/suite1.janet
+++ b/test/suite1.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose
+# Copyright (c) 2020 Calvin Rose
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite2.janet b/test/suite2.janet
index c0428019..15ce0fa7 100644
--- a/test/suite2.janet
+++ b/test/suite2.janet
@@ -1,4 +1,4 @@
-#' Copyright (c) 2019 Calvin Rose
+#' Copyright (c) 2020 Calvin Rose
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite3.janet b/test/suite3.janet
index 868bcdb4..3a0a4643 100644
--- a/test/suite3.janet
+++ b/test/suite3.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose
+# Copyright (c) 2020 Calvin Rose
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite4.janet b/test/suite4.janet
index dacb02f6..3b20de96 100644
--- a/test/suite4.janet
+++ b/test/suite4.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose
+# Copyright (c) 2020 Calvin Rose
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite5.janet b/test/suite5.janet
index 301ffd34..c4d0f5a8 100644
--- a/test/suite5.janet
+++ b/test/suite5.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose & contributors
+# Copyright (c) 2020 Calvin Rose & contributors
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite6.janet b/test/suite6.janet
index e1132369..cee3a9ca 100644
--- a/test/suite6.janet
+++ b/test/suite6.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose & contributors
+# Copyright (c) 2020 Calvin Rose & contributors
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/test/suite7.janet b/test/suite7.janet
index 3b074ef9..520210aa 100644
--- a/test/suite7.janet
+++ b/test/suite7.janet
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Calvin Rose & contributors
+# Copyright (c) 2020 Calvin Rose & contributors
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
diff --git a/tools/symcharsgen.c b/tools/symcharsgen.c
index 4e28f023..4e3c7965 100644
--- a/tools/symcharsgen.c
+++ b/tools/symcharsgen.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
diff --git a/tools/xxd.c b/tools/xxd.c
index 6d68e255..a45f4f03 100644
--- a/tools/xxd.c
+++ b/tools/xxd.c
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2019 Calvin Rose
+* Copyright (c) 2020 Calvin Rose
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to