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[Informative] Observable changes because of Unicode 15.1 #3073

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mathiasbynens opened this issue May 25, 2023 · 0 comments · Fixed by #3074
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[Informative] Observable changes because of Unicode 15.1 #3073

mathiasbynens opened this issue May 25, 2023 · 0 comments · Fixed by #3074
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unicode Relates to upstream Unicode updates.

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@mathiasbynens
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Output of node compare.js:

$ node compare.js
Comparing Unicode v15.1.0 to Unicode v15.0.0…
Binary_Property: 3 new values
- IDS_Unary_Operator
- ID_Compat_Math_Continue
- ID_Compat_Math_Start
General_Category: 0 new values
Script: 0 new values
Script_Extensions: 0 new values
Binary_Property/ID_Start: 0 removals
Binary_Property/ID_Start: 0 new code points
Binary_Property/ID_Continue: 0 removals
Binary_Property/ID_Continue: 2 new code points
General_Category/Space_Separator: 0 removals
General_Category/Space_Separator: 0 new code points
Case_Folding=S: 0 removals
Case_Folding=S: 0 new code points
Case_Folding=F: 0 removals
Case_Folding=F: 0 new code points

The two new ID_Continue code points are U+200C (ZERO WIDTH NON-JOINER) and U+200D (ZERO WIDTH JOINER), meaning we can remove them as explicit additions from the ECMAScript spec. I’ll send a PR.
@mathiasbynens mathiasbynens added the unicode Relates to upstream Unicode updates. label May 25, 2023
@mathiasbynens mathiasbynens mentioned this issue May 25, 2023
Merged
mathiasbynens added a commit to mathiasbynens/test262 that referenced this issue May 25, 2023
@mathiasbynens
Add Unicode v15.1.0-sensitive IdentifierPart tests
241a055 
Ref. tc39/ecma262#3073
mathiasbynens added a commit to mathiasbynens/ecma262 that referenced this issue May 25, 2023
@mathiasbynens
Editorial: Remove special-casing of U+200C and U+200D
7da6d37 
Unicode v15.1.0 makes both U+200C and U+200D `ID_Continue` characters, meaning we no longer need to explicitly special-case them for them to match `IdentifierPart`.

Issue: tc39#3073
@mathiasbynens mathiasbynens mentioned this issue May 25, 2023
Merged
Ms2ger pushed a commit to tc39/test262 that referenced this issue Sep 15, 2023
@mathiasbynens
Add Unicode v15.1.0-sensitive IdentifierPart tests (#3833)
59bad89 
Ref. tc39/ecma262#3073
ljharb pushed a commit to mathiasbynens/ecma262 that referenced this issue Feb 21, 2024
@mathiasbynens @ljharb
Editorial: Remove special-casing of U+200C and U+200D (tc39#3074)
467819a 
Unicode v15.1.0 makes both U+200C and U+200D `ID_Continue` characters, meaning we no longer need to explicitly special-case them for them to match `IdentifierPart`.

Issue: tc39#3073
@mathiasbynens mathiasbynens mentioned this issue Apr 15, 2024
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Editorial: Remove special-casing of U+200C and U+200D mathiasbynens/ecma262
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