L2/26-231R

UTC #189 Agenda

Monday, October 26 to Wednesday, October 28, 2026

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Last updated: October 26, 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 Activities 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 Central European standard time (UTC+1:00) (8 hours ahead of PDT).

Meeting Timeline and Scheduled Activities

This meeting will be held in Nancy, France. To accommodate participants in other time zones, the meeting will run each day from 1:30 PM to around 8:00 PM CET (UTC +1:00). (This corresponds to 8:30 AM to 3:00 PM EDT, and 5:30 AM to 12:00 PM PDT.) 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
-- -- --

Timeline

🖨️

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

Monday, October 26, 2026
Admin:
A.1 Quorum
A.2 Agenda
A.3 Review of prior meeting minutes
A.4 Review of UTC action items 		13:30 CET (5:30 am PDT)
E. CJK & Unihan around 14:00 CET
(6:00 am PDT)
Liaisons:
B.2 IRG		 afternoon
F. Properties & algorithms
F.1 PAG report
F.2 PRI #510 PD UTR #59
F.3 PRI #523 PU UTS #61
F.4 PRI #533 PU UTR #25
F.5 PRI #555 Finite automata for line breaking and segmentation
F.6 PRI #556 Other feedback for UTC #189
F.7 Other P&A documents
F.8 Use of misplaced variation selectors in C2PA 		afternoon
Break 16:15 – 17:00 CET
(8:15 – 9:00 am PDT)
F. Properties & algorithms (cont’d) late afternoon / evening
Liaisons:
B.3 SEI		 early evening
J.2 Supporting newly invented scripts evening

Tuesday, October 27, 2026
Admin: A.1 Quorum 13:30 CET (5:30 am PDT)
G. Emoji 13:40 CET
(5:40 am PDT)
Liaisons:
B.1 ISO/IEC JTC 1/SC 2		 mid afternoon CET (early morning PDT)
D. Scripts
D.1 Script Encoding WG report
D.2 PRI #556 Other feedback for UTC #189
D.3 Other Scripts documents 		mid afternoon CET
(early morning PDT)
Break 16:15 – 17:00 CET
(8:15 – 9:00 am PDT)
D. Scripts (cont’d) afternoon

Wednesday, October 28, 2026
Admin:
A.1 Quorum 		13:30 CET (5:30 am PDT)
Liaisons:
B.4 CLDR
B.5 ICU-TC
B.6 ICU4X-TC
B.7 ECMA TC 39
B.8 IETF / ICANN B.9 ISO/IEC JTC 1/SC 22
B.10 ISO TC 37
B.11 ISO TC 46
B.12 Unicode Consortium administration
B.13 Other liaisons 		13:40 CET (5:40 am PDT)
C.1 Editorial Working Group mid afternoon CET
(early morning PDT)
C.2 Charts Working Group mid afternoon CET
(early morning PDT)
I. Other working groups mid afternoon CET
(early morning PDT)
Break 16:15 – 17:00 CET
(8:15 – 9:00 am PDT)
A.5 Calendar review afternoon
H. Release Management Group
H.1 RMG report
H.2 Other documents 		Late afternoon / evening
J.1 PRI Feedback Evening
Admin:
A.6 Closing dates for PRIs
A.7 INCITS/CS&I representatives 		afternoon
INCITS/CS&I (“L2”) meeting around 19:00 to 20:00 CET
(11:00 to 12:00 PDT)

A. Administrative Topics

Schedule: Monday – Wednesday 13:30 CET; Wednesday late afternoon / evening CET

Details:

A.1 Consortium membership; meeting quorum and proxies

A.2 Agenda review

A.3 Approval of minutes of prior meeting [L2/26-151]

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, 13:40 CET

Details:

B.1.1 ISO/IEC DIS 10646 7th edition


B.1.2 ISO/IEC 10646 7th edn CDAM 1

  • ISO/IEC 10646 7th edn CDAM 1 [JTC 1/SC 2, L2/26-262]

B.1.3 Call for members of SC 2/AG 1 (see also E.1)

  • Call for members of SC 2/Advisory Group (AG) 1, Ideographic Research Group [JTC1/SC2, L2/26-205]

B.1.4 Maintenance of UCS Repertoire via a Maintenance Agency

  • Preliminary Draft, Terms of Reference of the ISO/IEC 10646 Maintenance Agency (= SC2 N5062) [JTC 1/SC 2, L2/26-196]
  • Summary of Consultation on SC2 N5062 Preliminary Draft, Terms of Reference of the ISO/IEC 10646 MA (=SC2 N5073) [JTC 1/SC 2, L2/26-263]

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

B.3 SEI Liaison Report [Anushah Hossain, Deborah Anderson, L2/26-242]

B.4 CLDR

B.5 ICU-TC

B.6 ICU4X-TC

B.7 ECMA TC 39

B.8 IETF / ICANN

B.9 ISO/IEC JTC 1/SC 22

B.10 ISO TC 37/SC 2

B.11 ISO TC 46

B.11.1 ISO 15924/RA

B.12 Unicode Administration, Infrastructure Group

B.13 Other liaisons (INFITT, LSA, ...)

C. Editorial & Charts Working Groups

Schedule: Wednesday, mid afternoon CET

Details:

C.1 Editorial Working Group

C.1.1 Editorial Working Group Report and Recommendations for UTC #189 Meeting [EDC, L2/26-236]

Topics:

  • Version 18.0 recap
  • Version 19.0 plan
  • EDC review of technical reports
  • Public feedback (see also C.1.2)

C.1.2 PRI #556 Other feedback for UTC #189

C.1.3 Other Editorial Working Group documents

  • Commas and Cedillas: Report on UTC 159-A81 [Roozbeh Pournader, L2/26-247]

C.2 Charts Working Group

C.2.1 Charts Working Group Report for UTC #189 [CHARTS, L2/26-240]

Topics:

  • Version 18.0 recap
  • Version 19.0 plan
  • Charts for previous versions
  • Feedback regarding Unicode 18 additions [Eduardo Marin Silva, L2/26-211]
  • Public feedback (see also C.2.2)

C.2.2 PRI #556 Other feedback for UTC #189

D. Scripts

Schedule: Tuesday mid afternoon / evening CET

Details:

D.1 Recommendations to UTC #189 (October 2026) on Script Proposals [Jan Kučera, et al, L2/26-239]

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 Codical Maya Hieroglyphs [Dr. Des. Carlos Pallan, et al, L2/26-145R3]
  • Proposal for Encoding the N’ti Script in the UCS (supersedes L2/26-028R) [Oreen Yousuf, Ibrahima Ceesay, L2/26-087]
  • Proposal to Encode the Ndiko Jonam Script in the UCS [Oreen Yousuf, L2/26-055R]
  • Proposal for the encoding of « KORE SEBELI » [Mohamed Bentoura Bangoura, L2/26-132R]
  • Mwangwego script
  • Proposal to Encode the Zou Script and Numerals in Unicode [Dr. T Marvin Zou, L2/26-258]
  • Proposal for encoding the Kadu script in the UCS [Kadu Than Naing, L2/26-257]
  • Proposal to encode Wei Rma in the UCS [Eiso Chan, et al, L2/26-223]
  • Proposal to encode Wagindara in the UCS [Yehenara Jiaxu, et al, L2/26-224]
  • Proposal to encode Quikscript in the UCS [Karl Pentzlin, L2/26-243]

D.1.2 New Characters

Details:
  • Proposal to encode ARABIC LETTER ALEF MAKSURA WITH COMMA ABOVE [Takehiko Kyono, L2/26-227]
  • Revised Proposal to encode the Devanagari Sign Final Anusvara [Biswajit Mandal, L2/26-206]
  • Proposal to encode three new characters of Devanagari [Biswajit Mandal, L2/26-248]
  • Proposal to encode the Devanagari Correction Mark for Vowel Signs [Biswajit Mandal, L2/26-221]
  • (Dotless) I/i with descender [Ismael Robles Haloui, L2/26-176R]
  • New Proposal to add LATIN CAPITAL TURNED W [Denis Moyogo Jacquerye, L2/26-246]
  • Unicode request for turned dotless i [Kirk Miller, L2/26-225]
  • Proposal to encode in the UCS extensions to Ellis's Phonotypic Alphabet for writing Yahgan and Ona [Yoram Meroz, Karl Pentzlin, L2/26-245]
  • Unicode request for South Slavic Cyrillic modifier letters [Kirk Miller, L2/26-244]
  • Proposal to encode Myanmar letters for Kham Dom Pa'O [Ben Mitchell, L2/26-222]
  • Proposal to encode Vedic Double Anusvara in Malayalam [Sridatta A, Srinidhi A, L2/26-251]
  • Preliminary proposal for Turkestan Brahmi within the Brahmi block [Francesco Catoni, L2/26-252]
  • Proposal to Encode Arabic Characters from Indo-Pak Mushafs [Rikza F. Sh., L2/26-229]
  • Proposal to encode four Latin letters of Benjamin Franklin's reformed alphabet [Karl Pentzlin, L2/26-230]

D.1.3 New Symbols

Details:
  • Leibniz: 6 letterlike symbols

    Documents:

    • Request to re-order 5 letterlike symbols in the 1DB00 block [Andreas Stötzner, L2/26-259]
    • Proposal to encode 6 letterlike symbols [Uwe Mayer, et al, L2/26-142]
  • Proposal to encode miscellaneous mathematical symbols [Uwe Mayer, et al, L2/26-140R]
  • Proposal to encode TURNED DIGIT ONE for Balanced Ternary [Adam Victor, L2/26-228]
  • Proposal to Encode 4 Unencoded Big5 ETen Extension Box Drawing Characters [Night Koo, Luke036, L2/26-220]

D.1.4 Changes to Characters

Details:
  • Some Changes to Indic_Syllabic_Category: A Report on UTC 158-A106 [Roozbeh Pournader, L2/26-255]
  • Categorizing Some Uncategorized Indic Characters: A Report on UTC 164-A63 [Roozbeh Pournader, L2/26-256]
  • Character properties of U+0CD5 KANNADA LENGTH MARK [Sridatta A, Srinidhi A, L2/26-250]

D.1.5 Other recommendations for UTC action

Details:
  • Unicode request for Vithkuqi annotations II [Francesco Catoni, Kirk Miller, L2/26-208]
  • Commas and Cedillas: Report on UTC 159-A81 [Roozbeh Pournader, L2/26-247]
  • On U+055F ARMENIAN ABBREVIATION MARK [Roozbeh Pournader, L2/26-213]
  • Repha and its behaviour in Kannada script [Sridatta A, Srinidhi A, L2/26-253]
  • Nukta in Sinhala script [Sridatta A, Srinidhi A, L2/26-254]
  • Resolving Cross-Writing-System Ambiguity in Mongolian Script [Kushim Jiang, L2/26-207]

D.1.6 No action required

D.1.7 Proposals in-progress

Details:
  • Proposal to Encode 4 Old Sundanese Characters [Febri Muhammad Nasrullah, L2/26-195]
  • Proposal to Encode Maya Hieroglyphs Extended-A [Dr. Gabrielle Vail, et al, L2/26-146]
  • Proposal to encode Devanagari Double Separator [Biswajit Mandal, L2/26-249]

D.1.8 Public feedback

D.2 PRI #556 Other feedback for UTC #189

D.3 Other documents

  • Formal Opposition to the Proposal for New Characters in the Nko Script Block (April 2026) [World Organization for the Development of Nko (WODN), L2/26-209]
  • Feedback regarding Unicode 18 additions [Eduardo Marin Silva, L2/26-211] (see also C.2.1)
  • Proposal to Add “kSEAL_AdditionalSrc” Property to SealSources.txt [suzuki toshiya, L2/26-218] (see also E.1)

E. CJK and Unihan

Schedule: Monday 14:00 CET

Details:

Discussion led by CJK & Unihan Working Group chair, Ken Lunde

E.1 CJK & Unihan Working Group Recommendations for UTC #189 Meeting [Ken Lunde, L2/26-238]

Details:
  • PRI feedback: PRI #556 Other feedback for UTC #189 (see E.6)
  • PRI feedback: PRI #558 Proposed Update UAX #38 (see E.3)
  • PRI feedback: PRI #559 Proposed Update UAX #45 (see E.4)
  • UAX #38 Unicode Han Database (Unihan)—other documents
    • Proposal to add the provisional kTabooVariant property to the Unihan database [Roy Wang, L2/26-216]
  • UTC Documents
    • Call for members of SC 2/Advisory Group (AG) 1, Ideographic Research Group [JTC1/SC2, L2/26-205] (see also B.1.3)
    • Proposal to Add “kSEAL_AdditionalSrc” Property to SealSources.txt [suzuki toshiya, L2/26-218]
  • IRG Documents
    • US/Unicode Activity Report for IRG Meeting #67 [Ken Lunde, L2/26-215 (= IRG N2944)]
    • IRG Meeting #67 Recommendations and Action Items [IRG (Lunde et al), IRG N2946]
    • China’s UNC proposal on 1 character for Collected Works of Mao Zedong [Eiso Chan et al, IRG N2969R]
    • G-Source horizontal extensions for 9178 characters [Wang Xieyang et al, IRG N2929R2]
    • T-Source horizontal extensions for 700 characters [TCA, IRG N2972R]
    • UK Horizontal Extensions [UK, IRG N2960]
    • U-Source Horizontal Extension [UTC, L2/26-147 (= IRG N2961R3)]
    • Feedback to IRGN2956 [Tao Yang, IRG N2986]
    • Feedback to IRGN2954 and IRGN2955 [Tao Yang, IRG N2985]
    • Feedback to IRG N2974 [TCA, IRG N2975]
  • Other topics:
    • Updated Provisional Unihan Database Properties

E.2 PRI #557 Proposed Update UAX #11, East Asian Width

Documents:

E.3 PRI #558 Proposed Update UAX #38, Unicode Han Database (Unihan)

Documents:

E.4 PRI #559 Proposed update UAX #45, U-Source Ideographs

Documents:

E.5 PRI #560 Proposed Update UAX #50, Unicode Vertical Text Layout

Documents:

E.6 PRI #556 Other feedback for UTC #189

F. Properties and Algorithms

Schedule: Monday later afternoon / evening CET

Details:

F.1 PAG: UTC #189 properties feedback & recommendations [Markus Scherer, et al, L2/26-235]

Details:
  • Core spec: error in code snippet for UTF-8 in UTF-16 order
  • UCD:
    • Georgian Extended titlecase mapping
    • Wordbreak property for modifier stacked arrowheads
    • Vertical orientation property for U+1F201
    • Soft dotted property for International Teaching Alphabet ligatures
    • UAX 31: definition of toFoldedcase(s)
    • UAX 31: Table 3a content does not match its UnicodeSet specification
    • UAX 24: Rules for script extensions are incomplete
    • Meaning of Age=Unassigned
    • Some Changes to Indic_Syllabic_Category: A Report on UTC 158-A106 [Roozbeh Pournader, L2/26-255]
    • Categorizing Some Uncategorized Indic Characters: A Report on UTC 164-A63 [Roozbeh Pournader, L2/26-256]
  • Proposed new scripts and characters

    Documents:

    • Unicode request for old-style IPA pitch and tonetic stress marks [Kirk Miller, Michael Ashby, L2/25-156]
    • Unicode request for stacked arrowheads [Kirk Miller, L2/25-157]
    • Proposal to encode Sirmauri in Unicode [Anshuman Pandey, Biswajit Mandal, L2/25-224]
    • Proposal to encode MINIMIZING VIRAMA in Brahmi script [Srinidhi A, Sridatta A, L2/22-219]
  • Bidi:

    Documents:

    • Fast path in UAX #9 needs more restrictions
    • Five bugs in bidi reference implementations
  • Normalization:
    • UAX #15 buffering guidance is incorrect
    • References to normalization charts in UAX #15, UAX #41
  • Line breaking:
    • Dashes aren't spaces
    • Line breaking property of Tulu-Tigalari independent vowels
  • Segmentation:
    • Finite automata for line breaking and segmentation [Robert Bastian, Robin Leroy, L2/26-135]
    • Add Malayalam example to GraphemeBreakTest.txt
    • More ALetters: A Report on UTC 162-A2 [Roozbeh Pournader, L2/26-212]
    • Reviewing Word_Break Open Issues: A Report on UTC 162-A3 [Roozbeh Pournader, L2/26-214]
    • U+21AE breaks segmentation consistency with canonical equivalence
    • More GraphemeBreakTest.txt test cases
    • Feedback on PRI #555 — Finite automata for linebreaking and segmentation [Kip Cole, L2/26-217] (see also F.5)
  • Collation:
    • Tertiary level collation of characters secondary equal to ß
    • Notes on the normalization of collation folding
  • Security:
    • Bad Java in UTS #39
    • Fast path in UTS #39 skeleton calculation is incorrect
    • Wrong claim about idempotency of skeleton() in UTS #39
    • Discrepancy between UTS #39 and RFC 6532 about local part of email addresses
    • UAX #31: Consider removing the Excluded Scripts table
  • Confusables: Better description in UTS #39 of non-goals for scope of confusables
  • Standardize East_Asian_Width and Vertical_Orientation for new emoji
  • Math: approval of UTR #25—see F.4
  • UnicodeSet Notation (UTS #61)—see also F.3
    • Draft UTS #61 editorial changes
    • Approval of Draft UTS #61
  • CSSWG feedback on handling of Hangul for text autospace—see F.2
  • Joiners in UTS #58: A report on UTC 183-A76
  • PRI #556 Other feedback for UTC #189 (see F.6)

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 #555 Finite automata for line breaking and segmentation

Documents:

F.6 PRI #556 Other feedback for UTC #189

F.7 Other P&A documents

  • Left is Right, Right is Left: Joining_Type for Left-to-right Scripts [Roozbeh Pournader, L2/26-137]

F.8 Use of misplaced variation selectors in C2PA for embedding metadata in unstructured text

G. Emoji

Schedule: Tuesday, 13:40 CET (5:40 am PDT)

Details:

Discussion led by Emoji Working Group chair, Jennifer Daniel

G.1 Emoji Standard and Research Working Group Report for UTC #189 (26Q4) [ESC/Jennifer Daniel, L2/26-237]

Topics:

  • Public feedback (see G.2)
  • ESR emoji recommendations for Unicode 19.0

    Documents:

    • Proposal for emoji: Eyes looking right [Jennifer Daniel, L2/26-269]
    • Proposal for emoji: Ornate bottle [Riccardo Vecchi, L2/26-270]
    • Proposal for emoji: Orchid [L2/26-271]
    • Proposal for emoji: Vulture [Álvaro Flórez Estrada public school, et al, L2/26-272]
    • Proposal for emoji: Inukshuk [Shravana Tiwari, L2/26-273]
  • Intake for Unicode 19.0
  • Intake for Unicode 20.0

G.2 PRI #556 Other feedback for UTC #189

G.3 Other documents for ESR consideration

  • Feedback regarding Unicode 18 additions [Eduardo Marin Silva, L2/26-211] (see also C.2.1)

H. Unicode Release Management

Schedule: Wednesday, late afternoon CET

Details:

H.1 Release Management Group Report to UTC #189 [Peter Constable, RMG L2/26-241]

Topics:

  • Unicode 18.0 release
  • Process development
  • Unicode 19.0 scope and timeline
  • Recommendation of new repertoire for Unicode 19.0

H.2 Other documents

  • Inlining images in StandardizedVariants.html files [Roozbeh Pournader, L2/26-261]

I. Other working groups

Schedule: Wednesday afternoon CET

Details:

I.1 Text Terminal Working Group

I.2 Orthographic Sequences Joint Working Group

  • Orthographic Sequences WG Report for UTC #189 [Cibu Jony, L2/26-260]

J. Other business

Details:

J.1 PRI feedback

Schedule: Wednesday evening

J.2 Supporting the needs of communities with newly invented scripts [Jan Kučera, L2/26-219]

Schedule: Monday evening

Meeting Adjournment