L2/26-092

UTC #187 Agenda

Tuesday, April 21 to Thursday, April 23, 2026

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Last updated: April 20, 2026

The UTC will be conducted as a hybrid online/in-person meeting. See the meeting logistics page for details.

Most topics are organized into categories according to working groups that have discussed topics in advance and provided recommendations. UTC discussions for the topic categories are pre-scheduled. Specific topics within each category will be discussed within the scheduled time window. In general, the schedule for individual topics may be fluid. In certain cases, however, specific topics may be scheduled for a specific time: see Scheduled Activies below.

Quorum will be verified each morning and throughout the meeting. All members need to make proxy designations in advance.

Dates and times shown are Pacific Standard time (UTC-8:00).

Meeting Timeline and Scheduled Activities

A tentative meeting timeline is provided below. The following individual topics are scheduled for discussion at specific times.

Agenda item / Topic Document Day and Time
G. Emoji L2/26-098 Wednesday, 9:40 am

Timeline

🖨️

The following is a tentative timeline for the meeting (expand to see daily details):

Tuesday, April 21, 2026
Admin:
A.1 Quorum
A.2 Agenda
A.3 Review of prior meeting minutes
A.4 Review of UTC action items 		10:30 am
C.1 Editorial WG report morning
C.2 Charts WG report morning
H. Unicode Release Management
H.1 Release Management WG report
H.2 PRI #536 Unicode 18.0 Alpha Review 		morning
Lunch 12:00 pm to 1:00 pm
Liaisons:
B.7 SEI
B.8 INFITT
B.9 LSA
B.11 ISO TC 46
B.11.1 ISO 15924/RA 		afternoon
Liaisons:
B.1 ISO/IEC JTC 1/SC 2 		afternoon
D. Scripts
D.1 Script Encoding WG report
D.2 PRI #520 PD UAX #60
D.3 PRI # 538 PU UAX #57
D.4 PRI #539 PU UAX #53
D.5 PRI #540 Other feedback
D.6 Other script/character documents 		afternoon
UCB students Q&A around 3:15 pm
Break around 3:30 pm
D. Scripts (cont’d) afternoon

Wednesday, April 22, 2026
Admin: A.1 Quorum 9:30 am
G. Emoji 9:40 am
Admin: A.5 Calendar review morning
E. CJK and Unihan morning
Break around 11:00 am
E. CJK and Unihan (cont’d) morning
Liaisons:
B.2 IRG 		morning
Lunch 12:00 pm to 1:00 pm
E. CJK and Unihan (cont’d) afternoon
F.9 Text Terminal Working Group afternoon
Liaisons:
B.3.1 ICU-TC
B.3.2 ICU4X-TC
B.4 CLDR
B.5 ISO TC 37/SC 2
B.6 IETF / ICANN
B.10 ISO/IEC JTC 1/SC 22
B.12 ECMA TC 39 		afternoon
F. Properties & algorithms
F.1 PAG report
F.2 PRI #510 PD UTR #59
F.3 PRI #523 PD UTS #61
F.4 PRI #533 UP UTR #25
F.5 PRI #535 PU UAX #31
F.6 PRI #542 PU UTS #10
F.7 Other properties documents
F.8 PRI #540 Other feedback 		afternoon
Break around 3:15 pm
F. Properties & algorithms (cont’d) afternoon

Thursday, April 23, 2026
Admin:
A.1 Quorum 		9:30 am
Liaisons:
B.13 Unicode Administration 		morning
I.3 Unicode Consortium scope and the Unicode Standard morning
I.2 Proposed JWG for orthographic sequences morning
[CJK, PAG or script topics, as required] morning
Lunch 12:00 pm to 1:00 pm
[CJK, PAG or script topics, as required] afternoon
I.1 Other feedback afternoon
H.1 Release Management WG report (cont’d) afternoon
Admin:
A.6 Closing dates for PRIs
A.7 INCITS/CS&I representatives 		afternoon
INCITS/CS&I (“L2”) meeting around 2:15 pm to 3:00 pm

A. Administrative Topics

Schedule: Tuesday, 10:30 am; Wednesday 9:30 am; Thursday 9:30 am & afternoon

Details:

A.1 Consortium membership; meeting quorum and proxies

A.2 Agenda review

A.3 Approval of minutes of prior meeting [L2/26-003]

A.4 Action item review

Documents:

A.5 Calendar review [Calendar]

A.6 PRI closing dates [Public Review Issues]

A.7 INCITS/CS&I representatives

B. Liaison Reports & Technical Topics

Schedule: various times—see meeting timeline

Details:

B.1 ISO/IEC JTC 1/SC 2

Schedule: Tuesday afternoon

Details:

B.1.1 ISO/IEC 10646 7th edition

Documents:

  • ISO/IEC 10646 7th edition CD3 (zipped, 177 MB) [WG2/N5347]
  • Disposition of comments on CD.3 (consultation) to ISO/IEC 10646 7th edition [WG2/N5356]
  • ISO/IEC 10646 7th edition CD3 (zipped, 177 MB) [WG2/N5357]

B.1.2 Maintenance of UCS Repertoire via a Maintenance Agency

B.2 IRG (see also IRG topics under E.1)

B.3 ICU

B.3.1 ICU-TC


B.3.2 ICU4X-TC

B.4 CLDR

B.5 ISO TC 37/SC 2

B.6 IETF / ICANN

B.7 SEI Liaison Report [Anushah Hossain, Deborah Anderson, L2/26-103]

B.8 INFITT

B.9 LSA

B.10 ISO/IEC JTC 1/SC 22

B.11 ISO TC 46

B.11.1 ISO 15924/RA

B.12 ECMA TC 39

B.13 Unicode Administration, Infrastructure Group

C. Editorial & Charts Working Groups

Schedule: Tuesday morning

Details:

C.1 Editorial Working Group

C.1.1 Editorial Working Group Report and Recommendations for UTC #186 Meeting [EDC, L2/26-097]

Topics:

  • Unicode 18.0
  • Website
  • Editorial WG process
  • Technical reports
  • Public feedback—see C.1.2
  • Feedback on U18 alpha charts [Kirk Miller, L2/26-081]

C.1.2 PRI #540 Other feedback for UTC #187

C.2 Charts Working Group

C.2.1 Charts Working Group Report for UTC #186 [CHARTS, L2/26-101]

Topics:

  • Version 18.0 progress
  • Public feedback—see C.2.2
  • Infrastructure improvements
  • Availability of "unversioned" charts
  • Auxiliary charts

C.2.2 PRI #540 Other feedback for UTC #187

D. Scripts

Schedule: Tuesday afternoon

Details:

D.1 Recommendations to UTC #187 (April 2026) on Script Proposals [Jan Kučera, et al, L2/26-100]

Discussion led by Script Encoding Working Group chair, Jan Kučera, and vice-chairs, Debbie Anderson and Roozbeh Pournader


D.1.1 New Scripts

Details:
  • Proposal to Encode the Ndiko Jonam Script in the UCS [Oreen Yousuf, L2/26-055]
  • Preliminary Proposal for Encoding the N'ti Script in the UCS [Oreen Yousuf, Ibrahima Ceesay, L2/26-028R]

D.1.2 New Characters

Details:
  • Unicode request for zh ligature [Kirk Miller, L2/26-065]
  • Unicode request for basic symbols of the Romance dialectological atlases [Kirk Miller, L2/26-079]
  • Unicode request for Catholic Albanian letter edhe [Francesco Catoni, Kirk Miller, L2/26-117]
  • Unicode request for modifier capital Y [Kirk Miller, L2/26-118]
  • Response on encoding BRAHMI MINIMIZING VIRAMA [Srinidhi A, Sridatta A, L2/26-066]
  • Proposal to Encode Arabic Characters from Indo-Pak Mushafs [Rikza F. Sh., L2/26-125]
  • Proposal to Encode an Arabic Vowel Sign for the Wolio Script [Febri Muhammad Nasrullah, L2/26-124]
  • Proposal to include Luri alphabets [Mohammad Mogoei, et al, L2/26-053]
  • Adding elongated geresh to HEBREW [Abraham Shvermer, L2/26-090]
  • N’Ko Phonetic Extensions for Bambara
  • Proposal to encode the Four Diacritic Marks of Kannada in Unicode [Biswajit Mandal, L2/26-113]
  • Proposal to encode the Devanagari Vowel Length Mark [Biswajit Mandal, L2/26-114]
  • Proposal to encode Candrabindu in Khmer script [Srinidhi A, Sridatta A, L2/26-088]
  • Preliminary proposal for compatibility characters for legacy terminal Arabic encodings [Piotr Grochowski, L2/26-077]

D.1.3 New Symbols

Details:
  • Alchemical Symbol for Retort-2

    Documents:

    • Proposal to encode 7 historic alchemical symbols [Mayer, et al, L2/25-131]
    • Towards the encoding of new alchemical symbols [Kirk Miller, Andreas Stötzner, L2/25-132]
  • Proposal to encode the Belarusian Ruble sign to the UCS [National Bank of the Republic of Belarus, L2/26-089]

D.1.4 Changes to Characters

Details:
  • Devanagari JIHVAMULIYA and UPADHMANIYA
  • Arabic Letter Waw With Ring Within Glyph

    Documents:

    • Proposal for Glyph Correction: U+06C4 ARABIC LETTER WAW WITH RING WITHIN [Ayaan Farooq, L2/26-119]
    • Suggested change to the glyph of U+06C4 [Kamal Mansour, L2/26-120]

D.1.5 Other recommendations for UTC action

Details:
  • Re-documenting ZARQA and ZINOR [Ben Denckla, L2/26-078]
  • Annotation for Sundanese Characters [Febri Muhammad Nasrulla, L2/26-076]
  • Proposal to Add Annotations for the Wolio Script [Febri Muhammad Nasrullah, L2/26-121]
  • Form of g with hook
  • Comment on "Request for f and g with loop" by Miller & Jared [Andreas Stötzner, L2/26-022]
  • Proposal to deprecate the Mongolian standardized variants in UCD [Kushim Jiang, L2/26-091]

D.1.6 Public feedback

D.1.7 Proposals in-progress

Details:
  • On Unencoded Characters for Old Sundanese [Febri Muhammad Nasrullah, L2/26-033]
  • Updated Proposal to Encode the Lampung Script (Second Revision) [Febri Muhammad Nasrullah, L2/26-036]
  • Feedback on some of the Koré Sébèli math signs [Oreen Yousuf, L2/26-067]
  • Proposal for the encoding of « KORE SEBELI » (revised) [Mohamed Bentoura Bangoura, L2/26-050R]
  • Proposal for Encoding the N’ti Script in the UCS (supercedes L2/26-028R) [Oreen Yousuf, Ibrahima Ceesay, L2/26-087]
  • Reply to L2/26-060 on the corruption of the basic sign list of ancient Egyptian [Mark-Jan Nederhof, L2/26-122]

D.2 PRI #520 Proposed Draft UAX #60, Data for Non Han Ideographic Scripts

D.3 PRI #538 Proposed Update UAX #57, Unicode Egyptian Hieroglyph Database (Unikemet)

D.4 PRI #539 Unicode Arabic Mark Rendering

D.5 PRI #540 Other feedback for UTC #187

D.6 Other script- or character-related documents

  • Corruption of the basic sign list of Egyptian hieroglyphs in Unicode 16 (revised) [Mark-Jan Nederhof, L2/26-059]
  • Answer to document L2/26-059: Corruption of the basic sign list of Egyptian hieroglyphs in Unicode 16, revised [Michel Suignard, L2/26-060]
  • U+1CED4: tartar-salt or salt of tartar? [Robin Leroy, L2/26-063]

E. CJK and Unihan

Schedule: Wednesday morning

Details:

Discussion led by CJK and Unihan Group chair, Ken Lunde

E.1 CJK & Unihan Group Recommendations for UTC #187 Meeting [Ken Lunde, L2/26-099]

Details:
  • Comments on Public Review Issues (July 3, 2025 – Oct 6, 2025) routed to CJK & Unihan Working Group [Michelle Perham, L2/25-220]
  • Public review feedback: PRI #520 Draft UAX #60 see D.2
  • Public review feedback: PRI #534 Proposed Update UAX #38 (see E.2)
  • Public review feedback: PRI #536 Unicode 18.0 Alpha Review (see H.2)
  • UAX #38 Unicode Han Database (Unihan)

    Documents:

    • Changes to V-Source Character U+2B8A0 [Eiso Chan, et al, L2/26-068]
    • Proposal to add two new provisional Unihan database properties [Ken Lunde, L2/26-074]
    • Feedback on year-2024 proposed kMandarin changes and additions for 169 characters (per ten UTC actions) [Sharon Chen, et al, L2/26-084]
  • UAX #45 U-Source Ideographs
    • Proposal to add one ideograph to UAX #45 [Yeh Chiang, L2/26-043]
    • Proposal to add one ideograph for Japanese place names to UAX #45 [Tsukada Masaki, L2/26-044]
    • Proposal to add 8 ideographs to UAX #45 [Chiang Chi-Ying, L2/26-057]
    • Proposal to add 1 ideograph [Lin Anning, L2/26-064]
    • Proposal to add 3 ideographs [Lin Anning, L2/26-071]
    • Proposal to add five ideographs to UAX #45 [Chiang Chi-Ying, L2/26-072]
    • Proposal to add 1 ideograph to UAX #45 [Wang Zirui, L2/26-080]
    • Proposal to add 5 ideographs [Lin Anning, L2/26-083]
    • Proposal to add 5 abbreviated ideographs to UAX #45 [Chiang Chi-Ying, L2/26-085]
  • UTC Documents
    • Proposal to Add Standardised Variation Sequences for CJK Strokes (revised) [Night Koo, L2/26-073]
    • Request for review of CJK confusables [Roozbeh Pournader, L2/26-082]
  • IRG Documents
    • US/Unicode Activity Report for IRG Meeting #66 [Ken Lunde, L2/26-069 (= IRG N2907)]
    • IRG Meeting #66 Recommendations and Action Items [IRG Convenor, IRG N2909]
    • Glyph Correction for KC-05216 (U+2DB7C) in CJKUI Extension F [KIM, Kyongsok; CHO, Sungduk, IRG N2916]
    • Clarification on Pending Characters in IRG N2861 [TCA, IRG N2927]
    • Proposal for changing 3 GU-source references to GHC-source references [ZHANG, Boris; WANG, Xieyang, IRG N2930]
    • Response on IRG N2860 [TCA, IRG N2861]
  • Other topics:
    • UAX #45 Additions, Unicode Version 19.0 & the Next IRG Working Set
    • IRG document migration status
    • Updated provisional Unihan database properties

E.2 PRI #534 Proposed Update UAX #38, Unicode Han Database (Unihan)

Documents:

E.3 PRI #540 Other feedback for UTC #187

E.4 PRI #541 Proposed Update UTS #37, Unicode Ideographic Variation Database

F. Properties and Algorithms

Schedule: Wednesday afternoon

Details:

F.1 PAG: UTC #187 properties feedback & recommendations [Markus Scherer, et al, L2/26-096]

Details:
  • Core spec: comments on L2/26-070 regarding proposed restrictions format controls
  • UCD: Inconsistent delimiter for UAX #57
  • UCD: DoNotEmit for U+29DE
  • UCD: Data for Proto-Cuneiform
  • UCD: inconsistencies for new Arabic Quranic marks
  • Properties for new scripts and characters

    Documents:

    • Request to Encode the Omani Rial Currency Symbol in the Unicode Standard [Central Bank of Oman, L2/26-041]
    • Proposal to encode 7 historic alchemical symbols [Mayer, et al, L2/25-131]
    • Proposal to encode 12 cossic characters L-2518, revised L-2533 [Uwe Mayer, et al, WG2 N5333]
    • Proposal to encode historical mathematical relations L-2519, revised L-2603 [Uwe Mayer, et al, WG2 N5334]
  • Line breaking
    • Breaking at hyphen
    • HH in field 1 description of LineBreak.txt
    • LB property of U+FE51
    • Ambiguous line breaking for U+02DF
    • LB12a applicability to EN DASH + NBSP
  • Segmentation: InCB for new characters
  • IDNA: Typo in Idna2008.txt
  • Collation
    • Additional contractions for Tibetan
    • Minimal non-zero weights for U+FFFE
    • Maximal primary weight for U+FFFF
    • Barred closed omega
  • Security
    • Use of casefolding in UTS #39
    • Ambiguity regarding "nonspacing marks" in UTS #39
    • Identifier_Type for U+028C
  • Confusables
    • Source and data listings of ""Mid-priority confusables data based on suggestions from David Corbett"" [Roozbeh Pournader, L2/26-086]
    • Confusables data for U+1D9F
    • Suppressed confusables data for compatibility equivalent sequences
    • Confusables data for Cyrillic Extended-D block
  • Math: Missing variation sequence
  • UTS #58 feedback
  • Progression of Proposed Draft UTS #61 (see F.3)

F.2 PRI #510 Proposed Draft UTR #59, East Asian Spacing

F.3 PRI #523 Proposed Draft UTS #61, Unicode Set Notation

Documents:

F.4 PRI #533 Proposed Update UTR #25, Unicode Support for Mathematics

Documents:

F.5 PRI #535 Proposed Update UAX #31, Unicode Identifiers and Syntax

Documents:

F.6 PRI #542 Proposed Update UTS #10, Unicode Collation Algorithm

F.7 Other documents

  • Make sequences with multiple variation selectors in a row formally non-conformant (revised) [Asmus Freytag, et al., L2/26-070]

F.8 PRI #540 Other feedback for UTC #187

F.9 Text Terminal Working Group

G. Emoji

Schedule: Wednesday morning

Details:

Discussion led by Emoji Working Group chair, Jennifer Daniel

G.1 Emoji Standard and Research Working Group Report for UTC #187 (26Q2) [ESC/Jennifer Daniel, L2/26-098]

Topics:

  • PRI feedback (see G.2)
  • ESR priorities
  • CLDR Emoji keyword intake
  • Update on interoperability audit
  • Emoji 19.0 submissions

G.2 PRI #537 Unicode Emoji 18.0 Alpha Repertoire

G.3 PRI #543 Proposed Update UTS #51, Unicode Emoji

Documents:

G.4 PRI #540 Other feedback for UTC #187

H. Unicode Release Management

Schedule: Tuesday morning, Thursday afternoon

Details:

H.1 Release Management Group Report to UTC #187 [Peter Constable, RMG L2/26-102]

Topics:

  • Unicode 18.0 timeline
  • Unicode 18.0 beta review
  • Recommended changes for 18.0
  • Character indexing [Robin Leroy, L2/26-075]

H.2 PRI #536 Unicode 18.0 Alpha Review

I. Other business

Details:

I.1 PRI #540 Other feedback for UTC #187

Schedule: Thursday afternoon

Documents:

I.2 Proposed JWG for orthographic sequences (FYI)

Schedule: Thursday morning

  • Discussion points for UNICODE UTC#185 Meeting [Govt of India, Ministry of Electronics & Information Technology, L2/26-061]
  • Text Rendering, Input, Search and Processing in Indian Languages [Karan Miśra, L2/26-062]

I.3 Unicode Consortium scope and The Unicode Standard

Schedule: Thursday morning

  • Unicode is more than The Unicode Standard [Markus Scherer, L2/26-123]

Meeting Adjournment