L2/23-005

Approved Minutes of UTC Meeting 174
Sunnyvale, CA — January 24-26, 2023
Hosted by Google, Sunnyvale, CA, and virtually
UTC #174 Agenda
Revision date: August 15, 2023

Day 1 - Tuesday, Jan 24, 2023

Meeting opened at 10:30am. Peter opened the meeting. Craig opened L2.

6.5 members in regular attendance. Quorum is 3.25.

5.5 members represented: Adobe, Apple, ETCO, Google, Microsoft, UCB,

A.1 Consortium membership; meeting quorum and proxies

A.2 Agenda review

A.3 Approval of minutes of prior meeting [L2/22-241]

A.4 Action item review

A.8 Recording & document practices

C.1 Editorial Committee Report and Recommendations for UTC #174 Meeting [Whistler, L2/23-009]

Oral report by Ken Whistler.

[174-A1] Action Item for Ken Whistler, EDC: In the proposed update draft for UAX #44 for Unicode 15.1.0, replace the partly erroneous example for kCantonese values with an updated example. Ref. L2/23-009 [Ben Yang Thu Jan 5 23:44:42 CST 2023]

C.2 PRI #464 Proposed Update UAX #41, Common References for Unicode Standard Annexes

Discussion. UTC took no action at this time.

G.1 Emoji Subcommittee Report for UTC #174 (2023Q1) [ESC/Jennifer Daniel, L2/23-010]
G.2 Emoji ZWJ sequences for Unicode 15.1

[174-A2] Action Item for Rick McGowan, UTC: Thank the correspondent for their feedback of [Thu Dec 29 11:03:42 CST 2022] in PRI #471, and relay the ESC response in Section 2.1 of document L2/23-010.

[174-A3] Action Item for Rick McGowan, UTC: Thank the correspondent for their feedback of [Tue Jan 3 07:25:57 CST 2023] in document L2/23-007, and relay the ESC response in Section 2.2 of document L2/23-010.

B.3 ICU / ICU4X Liaison Report

Oral report by Markus Scherer, Shane Carr.

B.4 CLDR Liaison Report

Oral report by Mark Davis.

Lunch Break 12:40 - 13:40.

H.1 Release Management Group Report to UTC #174

Oral report by Peter Constable.

Discussion. UTC took no action at this time.

H.2 Scope of the Unicode 15.1 Alpha Review

Discussion. UTC took no action at this time.

[174-N1] Note: The UTC agrees with the scope for Unicode 15.1 Alpha Review as laid out in L2/23-039.

F.1 Properties feedback & recommendations
F.1 Section 1.1 Stabilize toNFKC_Casefold on XID_Continue

[174-C1] Consensus: The UTC recommends to the officers a new stability policy: “For each string S containing only code points with the property XID_Continue at a given Unicode version, toNFKC_Casefold(S) under that version is identical to toNFKC_Casefold(S) under any later version of Unicode.”

[174-A4] Action Item for Mark Davis, Robin Leroy, Ken Whistler, PAG: Relay the recommendation for the additional stability policy for XID_Continue toNFKC_Casefold to the officers, provide additional wording for context, and update the policy page. See document L2/23-008 item 1.1.

[174-A5] Action Item for Ken Whistler, PAG: In DerivedCoreProperties.txt, document the implications of changing Default_Ignorable_Code_Point, for Unicode Version 15.1. See document L2/23-008 item 1.1.

[174-A6] Action Item for Mark Davis, PAG: In UAX #31, document for NFKC_Casefold that if the Default_Ignorable_Code_Point value changes for an existing XID_Continue that its NFKC_Casefold mapping must not change. For Unicode 15.1. See document L2/23-008 item 1.1.

[174-A7] Action Item for Mark Davis, PAG: In the core spec, document for NFKC_Casefold that if the Default_Ignorable_Code_Point value changes for an existing XID_Continue that its NFKC_Casefold mapping must not change. Point to related text in UAX #31; consider related edits to UAX #31. For Unicode 16.0. See document L2/23-008 item 1.1.

F.1 Section 1.2 We should add toNFKC_SimpleCaseFold and simple counterparts to the full stability policies

[174-C2] Consensus: Create a new informative, derived property NFKC_SimpleCasefold (NFKC_SCF), derived as its non-Simple counterparts except for the use of the Simple_Case_Folding instead of the Case_Folding, for Unicode Version 15.1.

[174-A8] Action Item for Mark Davis, PAG: Add NFKC_SimpleCasefold to DerivedNormalizationProps.txt and PropertyAliases.txt, for Unicode Version 15.1. See document L2/23-008 item 1.2.

[174-A9] Action Item for Mark Davis, PAG: Add NFKC_SimpleCasefold to the list of Full Properties in Section 2.7 of UTS #18, Unicode Regular Expressions, for a future revision of that UTS. See document L2/23-008 item 1.2.

[174-A10] Action Item for Ken Whistler, PAG: Add the informative property NFKC_SimpleCasefold to the Property Table of Unicode Standard Annex #44, Unicode Character Database, for Unicode Version 15.1. See document L2/23-008 item 1.2.

[174-A11] Action Item for Robin Leroy, Mark Davis, PAG: Propose specific updates to stability policies for simple case foldings and mappings, for Unicode Version 15.1. See document L2/23-008 item 1.2.

Short break.

F.1 Section 1.4 Incorrect applicable version for XID_Continue stability

[174-C3] Consensus: The UTC recommends to the officers that the applicable version be corrected to 4.1+ on the policy “Once a character is XID_Continue, it must continue to be so in all future versions”, as well as for the corresponding policy for ID_Continue.

[174-A12] Action Item for Mark Davis, PAG: Relay to the officers the recommendation for correcting the application version of the XID_Continue and ID_Continue stability policies, and update the policy page. See document L2/23-008 item 1.4.

F.1 Section 1.5 Character classes of U+2126 OHM SIGN and U+00B5 MICRO SIGN

[174-A13] Action Item for Rick McGowan, Roozbeh Pournader, UTC: Respond to Steven Pemberton with the information in the background section of document L2/23-008 item 1.5. Include a reference to the core spec section (chapter 7.2 Greek) where the Ohm sign is discussed.

[174-A14] Action Item for Asmus Freytag, Ben Yang, EDC: Add an FAQ item based on the feedback and the PAG response in document L2/23-008 item 1.5.

F.1 Section 3.1 UAX #9: Feedback on text for N0 and BD16

[174-A15] Action Item for Manish Goregaokar, PAG: In Proposed Update UAX #9, Unicode Bidirectional Algorithm, apply the changes proposed in document L2/23-014, for Unicode Version 15.1. See document L2/23-008 item 3.1.

[174-A16] Action Item for Manish Goregaokar, PAG: Prepare a proposal with additional revisions of UAX #9 clarifying the flow of control and data, for a future version of the Unicode Standard. See document L2/23-008 item 3.1.

F.1 Section 4.1 Chapter 3 D58 Grapheme base & D61b Graphical application

[174-A17] Action Item for Mark Davis, Robin Leroy, PAG: Review the core spec for "grapheme base" and Grapheme_Base and propose changes, as appropriate. See L2/23-008 item 4.1.

F.1 Section 4.2 LineBreakTest.txt bug for unassigned U+1F02C

[174-A18] Action Item for Rick McGowan, UTC: Respond to Tomasz Gucio feedback [Thu Nov 10 06:14:10 CST 2022] with the information in document L2/23-008 item 4.2.

F.1 Section 5.1 Collation of Hebrew punctuation Geresh & Gershayim

[174-C4] Consensus: Change the Unicode default sort order of certain punctuation marks according to L2/23-016, allowing for secondary or weaker differences and adjustments to the relative order of the affected characters.

[174-A19] Action Item for Markus Scherer, PAG: Change the Unicode default sort order of certain punctuation marks according to document L2/23-016, for Unicode Version 15.1, allowing for secondary or weaker differences and adjustments to the relative order of the affected characters.

[174-N2] Note: Regarding the sort order changes based on L2/23-016, CLDR 43/ICU 73 will make equivalent changes to their root sort orders, and the DUCET changes will be visible in the Unicode 15.1 beta review.

Short break at 16:50.

F.1 Section 6.1 Properties for UAX #31 Standard Profiles

[174-C5] Consensus: Create two informative properties, ID_Compat_Math_Start and ID_Compat_Math_Continue, as documented in section 7.1, Mathematical Compatibility Notation Profile, of the proposed update of UAX #31 (revision 38, draft 6), for Unicode Version 15.1.

[174-A20] Action Item for Robin Leroy, PAG: Create two informative properties, ID_Compat_Math_Start and ID_Compat_Math_Continue, as documented in section 7.1, Mathematical Compatibility Notation Profile, of the proposed update of UAX #31 (revision 38, draft 6), for Unicode Version 15.1. Update PropertyAliases.txt and PropList.txt as appropriate. See document L2/23-008 item 6.1.

[174-A21] Action Item for Ken Whistler, PAG: Document the new informative properties ID_Compat_Math_Start and ID_Compat_Math_Continue in UAX #44, for Unicode Version 15.1. See document L2/23-008 item 6.1.

[174-A22] Action Item for Mark Davis, PAG: Add ID_Compat_Math_Start and ID_Compat_Math_Continue to the list of Full Properties in Section 2.7 of UTS #18, Unicode Regular Expressions, for a future revision of that UTS. See document L2/23-008 item 6.1.

F.1 Section 6.2 Suspected endless loop in UTS #55 zero() example

[174-A23] Action Item for Rick McGowan, UTC: Thank David Starner for their feedback of [Mon Dec 5 17:34:03 CST 2022] and relay the information in the background section of document L2/23-008 item 6.2.

F.1 Section 6.3 PD-UTS 55 lacks information on spoofing and usability issues / Brahmic

[174-N3] Note: UTC Notes that the feedback from Norbert Lindenberg [Thu Dec 15 00:05:11 CST 2022] should be considered by PAG as part of prior action 172-A82.

Meeting adjourned for the day at 17:33.

Day 2, Wednesday, January 25, 2023

Meeting opened at 9:33

5.5 members represented: Adobe, Apple, ETCO, Google, Microsoft, UCB,

A.3 Approval of minutes of prior meeting [L2/22-241]

[174-C6] Consensus: UTC approves the minutes of meeting #173, document L2/22-241.

A.5 Calendar review [Calendar]

Added UTC #178 January 23-25 2024, tentatively hosted by Google.

F.1 Properties feedback & recommendations (continued) F.1 Section 6.5 Errors in UTR#36 Unicode Security Considerations

[174-A24] Action Item for Mark Davis, Robin Leroy, PAG: Address the editorial issues described in the feedback of [Thu Jan 5 20:53:39 CST 2023], as described in Section 6.5 of L2/23-008.

F.3 Source Code Security F.3.1 Recommendations of the source code working group

[174-N4] Note: The UTC notes the amendments to the proposed update for Unicode Standard Annex #31, Unicode Identifiers and Syntax, mentioned in sections A and B of document L2/23-017, for Unicode Version 15.1.

[174-N5] Note: The UTC notes the amendments to Proposed Draft Unicode Technical Standard #55, Unicode Source Code Handling, mentioned in section C of document L2/23-017.

F.3.2 PRI #466 Proposed Draft UTS #55, Unicode Source Code Handling

[174-C7] Consensus: Advance Proposed Draft Unicode Technical Standard #55, Unicode Source Code Handling, to Draft Unicode Technical Standard #55, Unicode Source Code Handling.

[174-A25] Action Item for Rick McGowan, UTC: Thank the correspondent for their feedback of [Wed Jan 19 03:46:02 CST 2022], and relay the SCWG response in section D of document L2/23-017.

[174-N6] Note: The UTC notes document L2/22-267, Comments on document L2/22-230 "Mathematical notation profile for default identifiers", but takes no further action.

F.4 PRI #472 Line breaking at orthographic syllable boundaries

Discussion. UTC took no action at this time.

[174-N7] Note: UTC Notes that documents L2/23-026 and L2/23-027 from Norbert Lindenberg [Thu Dec 15 00:05:11 CST 2022] should be considered by PAG as part of prior action 172-A82.

F.6 PRI #463 Proposed Update UTS #39, Unicode Security Mechanisms

Discussion. UTC took no action at this time.

F.2 Identifier status of scripts F.2.1 Requirements and Process for Changing Script Status for Identifier Use [Asmus Freytag, L2/23-054]

Discussion.

[174-A26] Action Item for Manish Goregaokar, PAG: Submit a proposal to the PAG to change the identifier status of the Javanese script, per recommendations in document L2/23-054.

Short break 11:00-11:23. Mystery birthday person lavishly serenaded by UTC.

Discussion and oral report by Peter Constable.

B.6 IETF / ICANN Liaison Report

Discussion and oral report by Peter Constable.

B.1 JTC 1/SC 2 Liaison Report

Discussion and oral report by Michel Suignard.

D.5 Mongolian

Discussion and oral report by Liang Hai.

Lunch break 12:17 13:30.

E.1 CJK & Unihan Group Recommendations [L2/23-011]

E.1 Section 01) 2022-11-21 07:03:04 CST

[174-C8] Consensus: Accept the proposal to change the kRSUnicode property value of U+3032E, based on feedback [Mon Nov 21 07:03:04 CST 2022] in document L2/23-007 and Section 01 of document L2/23-011, for Unicode Version 15.1.

[174-A27] Action Item for Michel Suignard, CJK: Change the kRSUnicode property value of U+3032E to add 46.10 as a second property value, based on feedback [Mon Nov 21 07:03:04 CST 2022] in document L2/23-007 and Section 01 of document L2/23-011, and provide to John Jenkins an updated Unihan data file, for Unicode Version 15.1.

[174-A28] Action Item for John Jenkins, CJK: Update the Unihan database to add 46.10 as a second kRSUnicode property value for U+3032E, based on feedback [Mon Nov 21 07:03:04 CST 2022] in document L2/23-007 and Section 01 of document L2/23-011, for Unicode Version 15.1.

[174-A29] Action Item for Ken Lunde, CJK: Convey to the feedback submitter the CJK & Unihan Group comments in Section 01 of document L2/23-011. See feedback [Mon Nov 21 07:03:04 CST 2022] in document L2/23-007.

E.1 Section 02) 2022-12-04 07:35:47 CST

[174-C9] Consensus: Remove the provisional Unihan database properties, kKSC0 and kKSC1, based on feedback [Sun Dec 4 07:35:47 CST 2022] in document L2/23-007 and as amended in Section 02 of document L2/23-011, for Unicode Version 15.1.

[174-A30] Action Item for John Jenkins, CJK: Remove the provisional Unihan database properties, kKSC0 and kKSC1, from UAX #38, based on feedback [Sun Dec 4 07:35:47 CST 2022] in document L2/23-007 and as amended in Section 02 of document L2/23-011, for Unicode Version 15.1.

[174-A31] Action Item for John Jenkins, CJK: Remove the provisional Unihan database properties, kKSC0 and kKSC1, from the Unihan database, based on feedback [Sun Dec 4 07:35:47 CST 2022] in document L2/23-007 and as amended in Section 02 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 03) 2022-12-04 08:06:30 CST

[174-C10] Consensus: Remove the provisional Unihan database property, kHKSCS, based on feedback [Sun Dec 4 08:06:30 CST 2022] in document L2/23-007 and as amended in Section 03 of document L2/23-011, for Unicode Version 15.1.

[174-A32] Action Item for John Jenkins, CJK: Remove the provisional Unihan database property, kHKSCS, from UAX #38, based on feedback [Sun Dec 4 08:06:30 CST 2022] in document L2/23-007 and as amended in Section 03 of document L2/23-011, for Unicode Version 15.1.

[174-A33] Action Item for John Jenkins, CJK: Remove the provisional Unihan database property, kHKSCS, from the Unihan database, based on feedback [Sun Dec 4 08:06:30 CST 2022] in document L2/23-007 and as amended in Section 03 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 04) 2022-12-04 12:00:37 CST

[174-C11] Consensus: Remove the provisional Unihan database properties, kKPS0 and kKPS1, based on feedback [Sun Dec 4 12:00:37 CST 2022] in document L2/23-007 and as amended in Section 04 of document L2/23-011, for Unicode Version 15.1.

[174-A34] Action Item for John Jenkins, CJK: Remove the provisional Unihan database properties, kKPS0 and kKPS1, from UAX #38, based on feedback [Sun Dec 4 12:00:37 CST 2022] in document L2/23-007 and as amended in Section 04 of document L2/23-011, for Unicode Version 15.1.

[174-A35] Action Item for John Jenkins, CJK: Remove the provisional Unihan database properties, kKPS0 and kKPS1, from the Unihan database, based on feedback [Sun Dec 4 12:00:37 CST 2022] in document L2/23-007 and as amended in Section 04 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 05) 2022-12-18 08:34:02 CST

[174-C12] Consensus: Accept the proposal to remove the entry for 162' in the UCD’s CJKRadicals.txt data file and to change the kRSUnicode property value of U+8FB6, based on Section 05 of document L2/23-011, for Unicode Version 15.1.

[174-A36] Action Item for Michel Suignard, CJK: Change the kRSUnicode property value of U+8FB6 by removing 162'.0, based on Section 05 of document L2/23-011, and provide to John Jenkins an updated Unihan data file, for Unicode Version 15.1.

[174-A37] Action Item for John Jenkins, CJK: Update the Unihan database to remove 162'.0 from the kRSUnicode property value of U+8FB6, based on Section 05 of document L2/23-011, for Unicode Version 15.1.

[174-A38] Action Item for Markus Scherer, PAG: Update the UCD’s CJKRadicals.txt data file by removing the entry “162'; 2ECC; 8FB6,” based on Section 05 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 06) 2022-12-25 19:10:34 CST

[174-A39] Action Item for Ken Lunde, CJK: Convey to the feedback submitter the CJK & Unihan Group comments in Section 06 of document L2/23-011. See feedback [Sun Dec 25 19:10:34 CST 2022] in document L2/23-007.

E.1 Section 07) 2022-12-27 19:01:03 CST

[174-C13] Consensus: Accept the proposal to change the kRSUnicode property value of U+44D5 and add UTC-02994 as a new kIRG_USource property value for U+44D5, based on feedback [Tue Dec 27 19:01:03 CST 2022] in document L2/23-007 and as amended in Section 07 of document L2/23-011, for Unicode Version 15.1.

[174-A40] Action Item for Michel Suignard, CJK: Change the kRSUnicode property value of U+44D5 by adding 162.8 and add UTC-02994 as a new kIRG_USource property value for U+44D5, based on feedback [Tue Dec 27 19:01:03 CST 2022] in document L2/23-007 and as amended in Section 07 of document L2/23-011, and provide to John Jenkins an updated Unihan data file, for Unicode Version 15.1.

[174-A41] Action Item for John Jenkins, CJK: Update the Unihan database to add 162.8 to the kRSUnicode property value of U+44D5 and add UTC-02994 as a new kIRG_USource property value for U+44D5, based on feedback [Tue Dec 27 19:01:03 CST 2022] in document L2/23-007 and as amended in Section 07 of document L2/23-011, for Unicode Version 15.1.

[174-A42] Action Item for John Jenkins, CJK: Update the record for UTC-02994 in the UAX #45 data file, USourceData.txt, based on feedback [Tue Dec 27 19:01:03 CST 2022] in document L2/23-007 and as amended in Section 07 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 08) 2022-12-06 09:54:11 CST

[174-A43] Action Item for John Jenkins, CJK: Check the proposed kKangXi property value additions and changes, then make the appropriate additions and changes to the Unihan database, based on feedback [Tue Dec 6 09:54:11 CST 2022] in document L2/23-007 and Section 08 of document L2/23-011, for Unicode Version 15.1.

[174-A44] Action Item for Ken Lunde, CJK: Convey to the feedback submitter the CJK & Unihan Group comments in Section 08 of document L2/23-011. See feedback [Tue Dec 6 09:54:11 CST 2022] in document L2/23-007.

E.1 Section 09) L2/22-288: Proposal to enhance the provisional kBigFive property

[174-A45] Action Item for John Jenkins, CJK: Update the Syntax and Description of the provisional kBigFive property in UAX #38, based on document L2/22-288 and Section 09 of document L2/23-011, for Unicode Version 15.1.

[174-A46] Action Item for John Jenkins, CJK: Update the Unihan database to add kBigFive property values to U+5F5E and U+7B9A, based on document L2/22-288 and Section 09 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 10) L2/22-200: Proposal to enhance the kRSUnicode property for non-Chinese simplified radicals

[174-C14] Consensus: Accept the two additions to the UCD’s CJKRadicals.txt data file, based on Section 10 of document L2/23-011, for Unicode Version 15.1.

[174-A47] Action Item for Markus Scherer, PAG: Update the UCD’s CJKRadicals.txt data file, based on Section 10 of document L2/23-011 and its attached CJKRadicals-20230106.txt data file, for Unicode Version 15.1.

[174-A48] Action Item for Ken Lunde, EDC: Draft documentation for the Unicode Version 15.1 Alpha, Beta, and landing pages that specifies that parsers need to be aware of the presence of non-Chinese simplified radicals in kRSUnicode property values and in the UCD’s CJKRadicals.txt data file, based on Section 10 of document L2/23-011, for Unicode Version 15.1.

E.1 Section 11) L2/22-238: Proposal to consider adding CodeCharts support for kIRG_KPSource representative glyphs

[174-C15] Consensus: Accept the kIRG_KPSource property value additions, changes, and removals, based on Section 11 of document L2/23-011, for Unicode Version 15.1.

[174-A49] Action Item for Michel Suignard, CJK: Apply the kIRG_KPSource property value additions, changes, and removals, based on Section 11 of document L2/23-011, and provide to John Jenkins an updated Unihan data file, for Unicode Version 15.1.

[174-A50] Action Item for John Jenkins, CJK: Update the Unihan database to reflect the kIRG_KPSource property value additions, changes, and removals, based on Section 11 of document L2/23-011, for Unicode Version 15.1.

[174-A51] Action Item for Ken Lunde, EDC: Draft documentation for the Unicode Version 15.1 Alpha, Beta, and landing pages that describes the addition of the KP-Source ideographs in the code charts for the URO, Extension A, and Extension B, based on Section 11 of document L2/23-011, for Unicode Version 15.1.

[174-A52] Action Item for Ken Lunde, EDC: Update documentation of the CJK charts in Section 24.1 of the core specification for Unicode Version 16.0, based on Section 11 of document L2/23-011.

E.5 Review report of KP part of preliminary 15.1 Alpha Code Charts [Yi Bai (白 易), CheonHyeong Sim (沈天珩), L2/23-041]

[174-N8] Note: The UTC reviewed document L2/23-041.

E.1 Section 13) L2/22-282: Proposal to add one common character used for Cantonese cuisine to UAX #45

[174-C16] Consensus: Accept one new U-Source ideograph as UTC-03336 with a UAX #45 status value of FutureWS, based on document L2/22-282 and Section 13 of document L2/23-011, for Unicode Version 15.1.

[174-A53] Action Item for John Jenkins, CJK: Add one new record to the UAX #45 USourceData.txt data file and its representative glyph to USourceGlyphs.pdf, based on document L2/22-282 and Section 13 of document L2/23-011, for Unicode Version 15.1.

Short break for espresso at 14:45.

E.1 Section 14) L2/22-274R: Disruptive Changes in GB 18030-2022 L2/23-003: Industry Recommendations for GB 18030 Testing & Certification

[174-A54] Action Item for Ken Lunde, UTC: Send L2/23-003R to CESI as a liaison contribution.

E.1 Section 15) L2/22-277: Proposal to add Kangxi Radical annotations to the CJK Radicals Supplement block

[174-A55] Action Item for Ken Whistler, EDC: Add the annotations for the 115 characters in the CJK Radicals Supplement block to the UCD’s NamesList.txt data file, based on document L2/22-287 and Section 15 of document L2/23-011 and its attached NamesList-20230106.txt data file, for Unicode Version 15.1.

E.1 Section 18) GB 18030-2022 Addendum (Working Draft)

[174-A56] Action Item for Ken Lunde, UTC: Prepare a contribution on behalf of the Unicode Consortium that relays concerns about encoding 897 ideographs in Plane 10 in the Working Draft of the GB 18030-2022 amendment.

B.2 IRG Liaison Report

Discussion. UTC took no action at this time.

D.3 Update on Egyptian Hieroglyphs

Discussion. UTC took no action at this time.

B.7 SEI Liaison Report

Discussion. UTC took no action at this time.

[174-A57] Action Item for V. S. Umamaheswaran, RMP: Move Seal Script allocation from U+32400 to U+38000.

D.2 Specification of orthography syllable structures [L2/23-038]

Discussion.

[174-A58] Action Item for Lawrence Wolf-Sonkin, Liang Hai, Norbert Lindenberg, SAH: Prepare a proposal for creating and publishing documentation on orthographic syllable structures.

Meeting adjourned for the day at 17:30.

Day 3, Thursday, January 25, 2023

Meeting opened at 10:00.

5.5 members represented: Adobe, Apple, ETCO, Google, Microsoft, UCB,

(VMWare also present.)

B.8 INFITT Liaison Report.

Oral report by Jan Kučera.

D.1 Recommendations to UTC #174 January 2023 on Script Proposals [Anderson, et al, L2/23-012]

D.1 Section I.1 Sidetic

[174-C17] Consensus: Provisionally assign 29 code points U+10940..U+1095C in a new Sidetic block at U+10940..U+1095F, for 29 Sidetic characters as described in L2/23-019 and section 1 of L2/23-012.

D.1 Section II.2.2a Two Quranic Characters

[174-C18] Consensus: Provisionally assign U+10EFB ARABIC SMALL LOW NOON and U+10EC5 ARABIC SMALL YEH BARREE WITH TWO DOTS BELOW, based on L2/22-281R and section 2 of L2/23-012.

[174-A59] Action Item for Lorna Evans, Roozbeh Pournader, SAH: Mention the ccc value of U+10EFB ARABIC SMALL LOW NOON and U+08D9 ARABIC SMALL LOW NOON WITH KASRA in UTR #53. (Reference section 2a of L2/23-012).

[174-A60] Action Item for Liang Hai, EDC: Investigate whether to include text about the error of ccc value of U+08D9 ARABIC SMALL LOW NOON WITH KASRA in the Core Spec. (Reference section 2a of L2/23-012).

G.1 Emoji Subcommittee Report for UTC #174 (2023Q1) [ESC/Jennifer Daniel, L2/23-010R]
G.1.1 Emoji 15.1 Recommendations [L2/23-037R]

[174-C19] Consensus: Accept ten (10) new emoji ZWJ sequences given in document L2/23-037R, and 108 directional emoji ZWJ sequences given in L2/23-030R, for Unicode Version 15.1.

[174-A61] Action Item for Ned Holbrook, ESC: Add the 118 new emoji ZWJ sequences to the emoji-zwj-sequences.txt data file, based on documents L2/23-037R, L2/23-030R, and Section 1 of document L2/23-010R, for Unicode Version 15.1.

[174-A62] Action Item for Ned Holbrook, ESC: Update Sections 2.9 and 2.10 of UTS #51 to add the two (2) new color emoji ZWJ sequences and the 108 new directional emoji ZWJ sequences, respectively, based on documents L2/23-037R, L2/23-030R, and Section 1 of document L2/23-010R, for Unicode Version 15.1.

G.1.2 Public Feedback [L2/23-010]

Discussion. Actions already recorded earlier.

G.1.3 Emoji for Unicode Version 16.0

Discussion. UTC took no action at this time.

D.1 Section II.2.2b Unencoded Arabic Characters

[174-A63] Action Item for Ken Whistler, RMP: Update the Roadmap to accommodate a new Arabic Extended-D block from U+10D90..U+10E5F, moving Byblos to U+1EB90..U+1EBFF (Reference L2/22-284 and section 2b of L2/23-012).

D.1 Section III.3. Bengali

[174-C20] Consensus: Provisionally assign the code point U+09FF for BENGALI LETTER ALTERNATE BA, based on L2/22-268R and section 3 of L2/23-012.

D.1. Section III.4 Chisoi

[174-C21] Consensus: Provisionally assign 40 code points U+16D80..U+16DA9 in a new Chisoi block at U+16D80..U+16DAF, for 40 Chisoi characters as described in L2/22-218R3 and section 4 of L2/23-012.

D.1 Section III.5 Sharada

[174-A64] Action Item for Liang Hai, EDC: Add Do Not Use table for U+1118E SHARADA LETTER AI and U+111C4 SHARADA OM to Core Spec and noting that AI should not be represented by a sequence, but OM should use a sequence.

D.1 Section III.6 Tolong Siki

[174-C22] Consensus: Provisionally assign 54 code points U+11DB0..U+11DE9 in a new Tolong Siki block at U+11DB0..U+11DEF, for 54 Tolong Siki characters as described in L2/23-024 and section 6 of L2/23-012.

D.1 Section III.7 Tulu

Discussion. UTC took no action at this time.

D.1 Section IV.8 Tai Yo

[174-C23] Consensus: Provisionally assign 55 code points U+1E6C0..U+1E6FF in a new Tai Yo block at U+1E6C0..U+1E6FF, for 55 Tai Yo characters as described in L2/22-289R and section 8 of L2/23-012.

D.1 Section VI.10 Legacy Computing Symbols

[174-C24] Consensus: The UTC accepts the name change for U+1CE35 from LARGE TYPE PIECE RAISED UPPER RIGHT ARC to LARGE TYPE PIECE RAISED UPPER LEFT ARC. (Reference section 10 of L2/23-012)

[174-A65] Action Item for Ken Whistler, UTC: Update the Pipeline with the name change for U+1CE35 (Reference section 10 of L2/23-012)

[174-A66] Action Item for Ken Whistler, EDC: Add a cross-reference between U+1CDB7 BLOCK OCTANT-3478 and U+1FB97 HEAVY HORIZONTAL FILL in the names list. (Reference section 10 of L2/23-012)

Lunch break 12:35 - 13:35.

D.1 Section VII. Recs on 16.0 and Beyond

Discussion. UTC took no action at this time.

D.1 Conclusion

[174-A67] Action Item for Ken Whistler, UTC: Update the pipeline in accordance with UTC decisions taken under agenda item D.1.

[174-A68] Action Item for Deborah Anderson, SAH: Send the fonts for U+10EFB ARABIC SMALL LOW NOON , U+10EC5 ARABIC SMALL YEH BARREE WITH TWO DOTS BELOW, U+09FF for BENGALI LETTER ALTERNATE BA, Chisoi, Tolong Siki, Sidetic, and Tai Yo to Michel Suignard.

D.4 Beyond Canonical Equivalence: A discussion on a way forward [Lawrence Wolf-Sonkin, L2/23-056]

Discussion.

Short break 14:45 - 15:00 before the espresso disappears.

A.6 PRI closing dates

[174-A69] Action Item for Rick McGowan, UTC: Extend all the currently open PRIs (PRI #460 - PRI #472) to close on April 4,2023.

I.1 Other feedback I.1.1 Public review feedback (October 27, 2022 - January 5, 2023) [L2/23-007]

Discussion. No outstanding items.

[174-C25] Consensus: The UTC authorizes starting the alpha review for Unicode 15.1.

[174-A70] Action Item for Ken Whistler, RMG: Prepare a background document for a PRI on the Unicode 15.1 alpha review.

[174-A71] Action Item for Peter Constable, RMG: Coordinate the publication of the alpha review.

[174-A72] Action Item for Rick McGowan, UTC: Post the PRI for the Unicode 15.1 alpha review, to close April 4, 2023.

Thanks to the host.

UTC adjourned at 15:25.

L2 continued.

Members Represented

UTC Attendance