L2/26-150R

UTC #188 Agenda

Tuesday, July 28 to Thursday, July 30, 2026

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Last updated: July 27, 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 Daylight time (UTC-7:00).

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
B.13 Liaison: Unicode Administration -- Tuesday, 1:30 pm
G. Emoji -- Wednesday, 9:40 am
F.16 Text Terminal Working Group -- Wednesday, 10:15 am
B.9 Liaisons: SEI L2/26-161 Thursday, 9:40 am

Timeline

🖨️

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

Tuesday, July 28, 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
Liaisons:
B.1 ISO/IEC JTC 1/SC 2		 morning
H.1 Release Management Group Report morning
C.1 Editorial WG report morning
C.2 Charts WG report morning
Lunch
Ad-hoc discussion: Egyptian Hieroglyphs, kEH_AltSeq 		12:15 pm to 1:30 pm
Liaisons:
B.13 Unicode Administration, Infrastructure		 1:30 pm
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 #544 Other feedback 		afternoon
Break around 3:30 pm
D. Scripts (cont’d) afternoon
Liaisons:
B.10 INFITT
B.11 LSA
B.12 ISO TC 46
B.12.1 ISO 15924/RA 		afternoon

Wednesday, July 29, 2026
Admin: A.1 Quorum 9:30 am
G. Emoji 9:40 am
F.16 Text Terminal Working Group 10:15 am
Liaisons:
B.3 CLDR
B.4.1 ICU-TC
B.4.2 ICU4X-TC
B.5 ECMA TC 39 		morning
Break around 10:50 am
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 #535 PU UAX #31
F.6 PRI #542 PU UTS #10
F.7 PRI #546 PU UAX #44
F.8 PRI #549 PU UAX #42
F.9 PRI #551 PU UAX #14
F.10 PRI #552 PU UAX #29
F.11 PRI #553 PU UTS #39
F.12 PRI #554 PU UAX #24
F.13 Other UAXes
F.14 Other synchronized UTSes
F.15 Other feedback for UTC #188 		morning
Lunch 12:15 pm to 1:30 pm
F. Properties & algorithms (cont’d) afternoon
Liaisons:
B.6 IETF / ICANN
B.7 ISO/IEC JTC 1/SC 22
B.8 ISO TC 37/SC 2 		afternoon
A.5 Calendar review afternoon
Break around 3:00 pm
E. CJK & Unihan afternoon
Liaisons:
B.2 IRG		 afternoon

Thursday, July 30, 2026
Admin:
A.1 Quorum 		9:30 am
Liaisons:
B.9 SEI		 9:40 am
B.1.4 UCS Maintenance Agency morning
CJK, PAG or script topics, as required morning
H.2 PRI #548 Unicode 18.0 Beta morning
I.1 PRI #544 Other feedback for UTC #188 morning
Lunch 12:00 pm to 1:00 pm
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 3:30 pm

A. Administrative Topics

Schedule: Tuesday, 10:30 am; Wednesday 9:30 am & afternoon; 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 [L2/26-093]

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 morning, Thursday morning

Details:

B.1.1 SC 2 meeting #31 & WG 2 meeting #73

  • IR report from ISO/IEC JTC1 SC2 and WG2 meeting June 22-26, 2026 [Debbie Anderson, IR, L2/26-162]

B.1.2 ISO/IEC 10646 7th edition

  • Disposition of comments on 10646 Ed.7 CD4 [WG2/N5369]

B.1.3 Re-establishment of IRG as SC 2/AG 1


B.1.4 Maintenance of UCS Repertoire via a Maintenance Agency

  • Preliminary Draft, Terms of Reference of the ISO/IEC 10646 Maintenance Agency (= SC 2 N 5062) [JTC 1/SC 2, L2/26-196]

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

B.3 CLDR

B.4 ICU

B.4.1 ICU-TC


B.4.2 ICU4X-TC

B.5 ECMA TC 39

  • ICU4X and TC39 Liaison Update to UTC #187 [Manish Goregaokar, L2/26-126]

B.6 IETF / ICANN

B.7 ISO/IEC JTC 1/SC 22

  • Unicode liaison report to ISO/IEC JTC 1/SC 22 #45 [Robin Leroy, L2/26-201]

B.8 ISO TC 37/SC 2

B.9 SEI Liaison Report [Anushah Hossain, Deborah Anderson, L2/26-161]

B.10 INFITT

B.11 LSA

B.12 ISO TC 46

B.12.1 ISO 15924/RA

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 #188 Meeting [EDC, L2/26-155]

Topics:

  • Unicode 18.0
  • EDC review of technical reports
  • Public feedback (see also C.1.2, C.1.3, H.2)
  • East Asian Usage of Quotation Marks – Updates for Unicode Core Specification [Night Koo, L2/26-128]

C.1.2 PRI #544 Other feedback for UTC #188

C.1.3 PRI #550 Proposed Update UAX #41, Common References for Unicode Standard Annexes

C.2 Charts Working Group

C.2.1 Charts Working Group Report for UTC #188 [CHARTS, L2/26-159]

Topics:

  • Unicode 18.0
    • Chart publication practice
    • Auxiliary charts
  • Charts for ISO/IEC 10646
  • Public feedback (see also C.2.2, H.2)
  • Leibniz Unicode Characters Project [Andreas Stötzner, L2/26-149]
  • Omani rial sign

C.2.2 PRI #544 Other feedback for UTC #188

D. Scripts

Schedule: Tuesday afternoon

Details:

D.1 Recommendations to UTC #188 (July 2026) on Script Proposals [Jan Kučera, et al, L2/26-158]

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]
  • Proposal for Encoding the N’ti Script in the UCS (supercedes L2/26-028R) [Oreen Yousuf, Ibrahima Ceesay, L2/26-087]
  • Koré Sébèli

    Documents:

    • Proposal for the encoding of « KORE SEBELI » [Mohamed Bentoura Bangoura, L2/26-132]
    • Proposal for the encoding of « KORE SEBELI » [Mohamed Bentoura Bangoura, L2/26-050]
    • Feedback on some of the Koré Sébèli math signs [Oreen Yousuf, L2/26-067]
  • Proposal to Encode the Lampungic Script in Unicode [Febri Muhammad Nasrullah, L2/26-194]

D.1.2 New Characters

Details:
  • Brahmi minimizing virama

    Documents:

    • Proposal to encode MINIMIZING VIRAMA in Brahmi script [Srinidhi A, Sridatta A, L2/22-219]
    • Response on encoding BRAHMI MINIMIZING VIRAMA [Srinidhi A, Sridatta A, L2/26-066]
  • KANNADA SIGN COMBINING ANUSVARA ABOVE [Sridatta A, Srinidhi A, L2/26-170]
  • Kannada Sign Ardhanusvara

    Documents:

    • KANNADA SIGN ARDHANUSVARA [Sridatta A, Srinidhi A, L2/26-169]
    • Request to encode South Indian candrabindu-s (revised; WG2 N3964) [Shriramana Sharma, L2/10-392R2]
  • Proposal to encode additional Pushpika signs in Tulu-Tigalari [Srinidhi A, Sridatta A, L2/26-168]
  • NEWA LETTER HEAVY YA [Sridatta A, Srinidhi A, L2/26-171]
  • Proposal to Encode an Arabic Zero Symbol [Roozbeh Pournader, Ebrahim Byagowi, L2/26-172]
  • Proposal to encode seven astronomical Arabic characters [Roozbeh Pournader, Ebrahim Byagowi, L2/26-173]
  • Proposal to include five Luri alphabets in Arabic Script [Mohammad Mogoei, et al, L2/26-179]
  • Albanian Frashëri alphabet [Francesco Catoni, L2/26-175]
  • Unicode request for two Latin orthographic pairs derived from ""I i"" [Ismael Robles Haloui, L2/26-144]
  • Proposal to encode two combining marks [Uwe Mayer, et al, L2/26-141]
  • Proposal to encode Samavedic svara markers in Kannada [Srinidhi A, Sridatta A, L2/26-131]
  • Proposal to Encode Two New Signs of Saurashtra in Unicode [Biswajit Mandal, L2/26-166]
  • Proposal to encode historic forms of Gurmukhi supplementary consonants [Srinidhi A, Sridatta A, L2/26-167]
  • Proposal to encode the Devanagari Sign Final Anusvara in Unicode [Biswajit Mandal, L2/26-181]
  • Proposal to encode Phonetic Correction Mark in Devanagari [Sridatta A, Srinidhi A, L2/26-180]
  • Arabic Ligature Lam with Small V with Alef (isolated and final forms) [Nick Doiron, L2/26-174]
  • (Dotless) I/i with descender [Ismael Robles Haloui, L2/26-176]

D.1.3 New Symbols

Details:
  • Proposal to encode one musical symbol and a pair of musical format controls for Chinese folk music [Eiso Chan, L2/26-130]
  • Proposal to encode miscellaneous mathematical symbols [Uwe Mayer, et al, L2/26-140]
  • Proposal to encode Leibnizian ambiguous signs [Uwe Mayer, et al, L2/26-143]
  • Proposal to encode 6 letterlike symbols [Uwe Mayer, et al, L2/26-142]

D.1.4 Changes to Characters

Details:
  • Usage of Aytam in the other South Indian scripts [Sridatta A, Srinidhi A, L2/26-165]
  • Proposal to encode the Leke script into the Unicode Standard [Frank van de Kasteelen, L2/26-129]

D.1.5 Other recommendations for UTC action

Details:
  • Proposal to update the Mongolian variant data in UCD [Kushim Jiang, L2/26-163]
  • Annotation for 1D1EE MUSICAL SYMBOL REVERSED FLAT AND FLAT [Kirk Miller, L2/26-177]
  • Annotation to 1D1D2 MUSICAL SYMBOL SQUARE B [Soren Allen, L2/26-178]
  • Revised Annotation for Grantha Anusvara Signs in the Code Chart [Sridatta A, Srinidhi A, L2/26-164]
  • Sequences with consecutive anusvaras in Indic scripts [Srinidhi A and Sridatta A, L2/26-138]
  • Proposal to encode COMPOSE [Doruk K., L2/26-139]

D.1.6 Public feedback

Details:
  • Leibniz Unicode Characters Project [Andreas Stötzner, L2/26-149]
  • PRI feedback: PRI #544 Other feedback for UTC #188 (see D.5)
  • PRI feedback: PRI #520 Draft UAX #60 (see D.2)

D.1.7 Proposals and feedback in-progress

Details:
  • Proposal to Encode 4 Old Sundanese Characters [Febri Muhammad Nasrullah, L2/26-195]
  • Proposal to Encode Codical Maya Hieroglyphs [Dr. Des. Carlos Pallan, et al, L2/26-145]
  • Proposal to Encode Maya Hieroglyphs Extended-A [Dr. Gabrielle Vail, et al, L2/26-146]

D.2 PRI #520 Proposed Draft UAX #60, Data for Large East Asian Scripts

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

D.4 PRI #539 Proposed Update UAX #53, Unicode Arabic Mark Rendering

D.5 PRI #544 Other feedback for UTC #188

E. CJK and Unihan

Schedule: Wednesday afternoon

Details:

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

E.1 CJK & Unihan Working Group Recommendations for UTC #188 Meeting [Ken Lunde, L2/26-157]

Details:
  • PRI feedback: PRI #520 Draft UAX #60 see D.2
  • PRI feedback: PRI #534 Proposed Update UAX #38 (see E.2)
  • PRI feedback: PRI #544 Other feedback for UTC #188 (see E.6)
  • PRI feedback: PRI #545 Proposed Update UAX #11, East Asian Width (see E.3)
  • PRI feedback: PRI #548 Unicode 18.0 Beta (see also H.2)
  • UAX #38 Unicode Han Database (Unihan)

    Documents:

    • Proposal to enhance the syntax of the RSIndex.txt data file [Ken Lunde, L2/26-134]
    • Proposal to change the kTotalStrokes property values of 458 ideographs [Ken Lunde, L2/26-148]
  • UTC Documents
    • A second request for review of CJK confusables [Roozbeh Pournader, L2/26-127]
    • Proposal to encode double ideographic full stop and two associated standardized variants (revised) [Eiso Chan, L2/26-133]
    • Proposal to encode WHITE IDEOGRAPHIC COMMA [Gen Kojitani, L2/26-136 (= WG2 N5358)]
  • IRG Documents
    • Final proposal to encode CJK Unified Ideographs Components [Kushim Jiang, et al, IRG N2878]
    • Proposal to establish a new normative kIRG_SGSource property [Eiso Chan, IRG N2926 (= WG2 N5359)]
    • U-Source Horizontal Extension [UTC, L2/26-147 (= IRG N2961)]
  • Other topics:

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

Documents:

E.3 PRI #545 Proposed Update UAX #11, East Asian Width

Documents:

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

Documents:

  • Proposed update UAX #45, U-Source Ideographs (snapshot) [Ken Lunde, L2/26-197]

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

Documents:

  • Proposed Update UAX #50, Unicode Vertical Text Layout (snapshot) [Ken Lunde, L2/26-198]

E.6 PRI #544 Other feedback for UTC #188

F. Properties and Algorithms

Schedule: Wednesday morning & afternoon

Details:

F.1 PAG: UTC #188 properties feedback & recommendations [Markus Scherer, et al, L2/26-154]

Details:
  • Core spec: Conformance notes for D57h
  • UCD:
    • Soft-dotted property for ᴉ U+1D09 and ᵎ U+1D4E
    • Unexpected Joining_Type for Samaritan
    • InSC for U+16100 GURUNG KHEMA LETTER A
  • Properties for new scripts and characters

    Documents:

    • Recommendations to UTC #183 (April 2025) on Script Proposals [SEW / Jan Kučera, et al, L2/25-091]
    • Proposal to encode JIHVAMULIYA and UPADHMANIYA in Devanagari [Srinidhi A, L2/25-121]
    • Proposal to encode 7 historic alchemical symbols [Mayer, et al, L2/25-131]
    • Unicode request for wavy Y [Kirk Miller, Denis Moyogo Jacquerye, L2/25-145]
    • Unicode request for ɪ with retroflex hook [Kirk Miller, L2/25-146]
    • Unicode request for open q and x with stroke [Kirk Miller, et al, L2/25-147]
    • Proposal to encode two historical Persian letters used for ezafe [Ebrahim Byagowi, Roozbeh Pournader, L2/25-148]
    • Unicode request for schwa with right hook [Kirk Miller, Neil Rees, L2/25-155]
    • Unicode request to add capital U with left hook [Ismael Robles Haloui, L2/25-176]
    • Proposal to encode Combining Anusvara above in Tulu-Tigalari [Srinidhi A, Sridatta A, L2/25-244]
    • Proposal to encode Candrabindu and Avagraha in Dogra [Srinidhi A, Sridatta A, L2/25-245]
    • Proposal to encode Telugu Sign Spacing Candrabindu [Srinidhi A, Sridatta A, L2/25-246]
    • Alchemical symbol for calx [Kirk Miller, L2/26-017]
    • Proposal to encode the Belarusian Ruble sign to the UCS [National Bank of the Republic of Belarus, L2/26-089]
    • Proposal to encode two combining marks [Uwe Mayer, et al, L2/26-141]
    • Proposal to encode 6 letterlike symbols [Uwe Mayer, et al, L2/26-142]
    • Proposal to encode Leibnizian ambiguous signs [Uwe Mayer, et al, L2/26-143]
    • Proposal to encode additional Pushpika signs in Tulu-Tigalari [Srinidhi A, Sridatta A, L2/26-168]
    • KANNADA SIGN COMBINING ANUSVARA ABOVE [Sridatta A, Srinidhi A, L2/26-170]
  • Bidi
    • Digit directionality in UBA
    • Bidi_Class for Balinese characters U+1B42, U+1B3C, and U+1B3A
  • U+11A7 in Normalization Tests
  • Line Breaking
    • Breaking behavior of CJK ideographs followed by U+00B7
    • Line_Break property of new geometric shapes
  • Segmentation (UAX #29)
    • Length limit for grapheme clusters
    • Alignment of UAX #29 and UTS #51 regarding emoji flags and keycaps
    • Grapheme clusters for Zanabazar Square sequence
    • Should the derivation of Indic_Conjunct_Break use Script_Extensions instead of Script?
    • Word boundary segmentation for hyphens in identifiers
    • Definition of "Grapheme extender"
  • Collation: removal of Shift-Trimmed option
  • Regex: Typos in UTS #18
  • Security
    • Identifier_Type data for new Unicode 18.0 characters
    • Identifier_Type of Arabic and Hebrew combining marks
    • Support for ISO 15924 code Hntl
    • Joiners vs combining marks in Arabic and similar scripts
  • Confusables
    • Confusables data from Google Summer of Code 2025
    • confusables.txt and NFKC conflicts
    • U+2205 EMPTY SET
    • Additions to intentional.txt
    • Stretched Arabic math symbols
    • New Unicode 18.0 characters
  • Emoji: Emoji_Presentation property for older characters
  • Script IDs Jpan/Kore/Hanb/Hntl in UAX #24
  • Other feedback (deferred to UTC #189)

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 PRI #546 Proposed Update UAX #44, Unicode Character Database

F.8 PRI #549 Proposed Update UAX #42, Unicode Character Database in XML

F.9 PRI #551 Proposed Update UAX #14, Unicode Line Breaking Algorithm

F.10 PRI #552 Proposed Update UAX #29, Unicode Text Segmentation

F.11 PRI #553 Proposed Update UTS #39, Unicode Security Mechanisms

F.12 PRI #554 Proposed Update UAX #24, Unicode Script Property

F.13 Other UAXs

F.13.1 UAX #9 Unicode Bidirectional Algorithm

F.13.2 UAX #15 Unicode Normalization Forms

F.13.3 UAX #34 Unicode Named Character Sequences

F.14 Other synchronized UTSs

F.14.1 UTS #46 Unicode IDNA Compatibility Processing

F.14.2 UTS #58 Unicode Link Detection and Serialization

F.15 PRI #544 Other feedback for UTC #188

F.16 Text Terminal Working Group

Schedule: Wednesday 10:15 am

F.17 Other P&A documents

F.17.1 On the Bidi_Mirroring_Glyph of U+1DB10 CARTESIAN EQUALS SIGN [Robin Leroy, L2/26-202]

F.17.2 Finite automata for line breaking and segmentation [Robert Bastian, Robin Leroy, L2/26-135]

G. Emoji

Schedule: Wednesday, 9:40 am

Details:

Discussion led by Emoji Working Group chair, Jennifer Daniel

G.1 Emoji Standard and Research Working Group Report for UTC #188 (26Q3) [ESC/Jennifer Daniel, L2/26-156]

Topics:

  • Emoji 18.0
  • PRI feedback: Feedback on PRI #543 (see G.2)
  • Update on Interoperability Audit
  • Update on Intake

G.2 PRI #543 Proposed Update UTS #51, Unicode Emoji

Documents:

H. Unicode Release Management

Schedule: Tuesday morning, Thursday afternoon

Details:

H.1 Release Management Group Report to UTC #188 [Peter Constable, RMG L2/26-160]

Topics:

  • Unicode 18.0 timeline
  • Unicode 18.0 beta and release
  • Synchronization with ISO/IEC DIS 10646 7th Edn.
  • Preliminary repertoire for Unicode 19.0
  • Unicode 18.0 acknowledgements

H.2 PRI #548 Unicode 18.0 Beta

I. Other business

Schedule: Thursday afternoon

Details:

I.1 PRI feedback

Documents:

  • Public Review Issues (April 1, 2026 - July 7, 2026) [Michelle Perham, L2/26-153]

Meeting Adjournment