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-08:00).
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 |
|---|---|---|
| D.5 Mongolian UTN | Tuesday, 4:45 pm | |
| F.3 East Asian Spacing | L2/25-100 | Tuesday, 5:00 pm |
| G. Emoji | L2/25-089 | Wednesday, 9:50 am |
Timeline
The following is a tentative timeline for the meeting (expand to see daily details):
Tuesday, April 22, 2025
|
Admin: A.1 Quorum A.2 Agenda A.3 Review of prior meeting minutes A.4 Review of UTC action items |
10:30 am |
| H.1 Release Management Group report | morning |
| C.1 Editorial Working Group report | morning |
|
Liaisons: B.1 ISO/IEC JTC 1/SC 2 |
morning |
| Lunch | 12:30 pm to 1:30 pm |
|
Liaisons: B.8 INFITT B.9 LSA B.11 ISO TC 46 |
afternoon |
| C.2 Charts Working Group report | afternoon |
| D. Scripts | afternoon |
| D.5 UTN #57 Mongolian | 4:45 pm |
| F.3 PRI #510 East Asian Spacing | 5:00 pm |
Wednesday, April 23, 2025
| Admin: A.1 Quorum A.5 Calendar review |
9:30 am |
| G. Emoji | 9:50 am |
|
Liaisons: B.3.1 ICU-TC B.3.2 ICU4X-TC B.5 ISO TC 37/SC 2 B.6 IETF / ICANN B.10 ISO/IEC JTC 1/SC 22 B.12 ECMA TC 39 |
morning |
| Break | around 11:00 am |
|
F. Properties & algorithms F.1 PAG report F.2 PRI #509 Link detection/serialization F.4 PRI #511 PU UTS #10 (UCA) F.5 PRI #512 UTR #33 (conformance model) F.6 PRI #516 PU UAX #44 (UCD) F.7 PRI #517 Review of Identifier_Type F.8 Text Terminal Working Group report |
morning |
| Lunch | 12:30 pm to 1:30 pm |
| F. Properties (cont’d) | afternoon |
|
Liaisons: B.4 CLDR |
afternoon |
| Break | around 3:30 pm |
| D. Scripts (cont’d) | afternoon |
Thursday, April 24, 2025
|
Admin: A.1 Quorum |
9:30 am |
|
Liaisons: B.13 Unicode Administration, Infrastructure Team B.7 SEI |
morning |
| E. CJK & Unihan | morning |
|
Liaisons: B.2 IRG |
morning |
| Lunch | 12:30 pm to 1:30 pm |
| I.1 Other feedback | afternoon |
| H.1 Release Management Group report (cont’d) | afternoon |
| Admin: A.6 Closing dates for PRIs A.7 L2 representatives |
afternoon |
| INCITS/L2 meeting | 2:30 pm to 3:45 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 [L2/25-003]
A.4 Action item review
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
Details:
B.1.1 ISO/IEC 10646:2020 FDAmd 2 (SC2/N4954)
B.1.2 ISO/IEC 10646 7th edition CD2 (SC2/4967)
Documents:
B.1.3 ISO/IEC FDIS 14651 (Ed.7) (SC2/N4960)
B.1.4 Maintenance of UCS Repertoire via a Maintenance Agency
Documents:
B.1.5 Request for SC2 member comments on proposal to encode Ruble sign with double vertical stem [Unicode, L2/24-271 (= SC2/N4952)]
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 [Deborah Anderson, Anushah Hossain, L2/25-094]
B.8 INFITT
B.9 LSA
B.10 ISO/IEC JTC 1/SC 22
B.11 ISO TC 46
B.12 ECMA TC 39
B.13 Unicode Administration, Infrastructure Group
C. Editorial & Charts Working Groups
Schedule: Tuesday afternoon
Details:
C.1 Editorial Working Group Report and Recommendations for UTC #183 Meeting [EDC, L2/25-088]
Topics:
- Unicode 17.0
- Website
- Editorial Working Group process issues
- Feedback from PRI #514, Unicode 17.0 Alpha Review
- Comments on Public Review Issues (Jan 3, 2025 – April 2, 2025) routed to Editorial Working Group [Michelle Perham, L2/25-071]
C.2 Charts Working Group
C.2.1 Charts Working Group Report for UTC #183 [CHARTS, L2/25-092]
C.2.2 Feedback from PRI #514, Unicode 17.0 Alpha Review
D. Scripts
Schedule: Tuesday afternoon
Details:
D.1 Recommendations to UTC #183 (April 2025) on Script Proposals [Kučera, et al, L2/25-091]
Discussion led by Script Encoding Working Group chair, Jan Kučera, and vice-chairs, Debbie Anderson and Roozbeh Pournader
D.1.1 New Scripts
D.1.2 New Characters
Details:
- Saudi Riyal sign
Documents:
- Unicode request for Saudi riyal sign [Kirk Miller, L2/25-072]
- Proposal to Encode the New Saudi Riyal Symbol [Saleh Saeed Alkatheri, L2/25-073]
- Proposal to Update the Shape of the Saudi Riyal Symbol (U+FDFC) [Sultan Maqtari, L2/25-074]
- Proposal to add the currency sign for the SAUDI RIYAL to the UCS [Saudi Central Bank, L2/25-075]
- SEW Recommendations on Encoding the Saudi Riyal Currency Symbol [Roozbeh Pournader, et al, L2/25-076]
- Response on the Encoding of Tulu-Tigalari Letter Archaic II [Srinidhi A, L2/25-113]
- Proposal to Encode One Mongolian Letter [CheonHyeong Sim, et al, L2/25-080]
- Proposal to encode one Tangut ideograph [Andrew West, Viacheslav Zaytsev, WG2/N5303] (= L2/25-144)
- Unicode request for Cyrillic letter jeru with connecting bar [Kirk Miller, L2/25-112]
- Unicode request for w with palatal hook [Denis Moyogo Jacquerye, Kirk Miller, L2/25-077]
- Unicode request for compound stress mark [Kirk Miller, L2/25-061]
- Unicode request for letters with double tilde overlay [Kirk Miller, L2/25-114]
D.1.3 New Symbols
D.1.4 Changes to Characters
Details:
- Arabic crown letters
- Indic Categories for Zanabazar and Soyombo RAs [Jan Kučera, et al, L2/25-119]
- Tangut
- Tangut Radical/Stroke Corrections [Andrew West, L2/25-120]
- Tangut Radical/Stroke corrections for U+17D0B
- Correction to radical values for 4 Tangut ideographs
- Names for phonetic characters
- Response to feedback on the names of phonetic characters in L2/24-234R and L2/25-016 [Kirk Miller, L2/25-097]
- Musical symbols
- Bamum name corrections
D.1.5 Other recommendations for UTC action
D.1.6 No action required
Details:
- Proposal to encode Maldivian Rufiyaa Sign in the Unicode Standard [Naail Abdul Rahman, Abdulla Shafeeu, L2/25-122]
- Classification of Bopomofo for default identifiers (see also F.1)
- Revised Proposal to Encode N’ko Phonetic Extensions for Malian Languages [Boubacar Diakite, Neil Patel, L2/25-081]
- Proposal to encode JIHVAMULIYA and UPADHMANIYA in Devanagari [Srinidhi A, L2/25-121]
- Tulu (modern)
Documents:
- Supportive Document for Tulu Unicode Proposal [Karnataka Tulu Sahitya Academy, L2/25-026]
- KTA support letter [Kerala Tulu Academy, L2/25-027]
- Proposal to Encode 4 Characters and 1 Half-Vowel, and 12 Numerals in Tulu-Tigalari [Dr. Pravinraj S Rao, et al, L2/25-063]
- Continued Proposal Document to Encode Tulu [Dr. Akash Raj Jain, L2/25-082]
- KTSA Authorisation letters [Karnataka Tulu Sahitya Academy, L2/25-083]
- Updated Proposal to Encode Modern Tulu in Unicode [Dr. Akash Raj Jain, L2/25-095]
- Modern Tulu Unicode: Key Concerns for Recognition, Integration, and Digital Sustainability [Vivekananda S, L2/25-096]
- Request for Expedited Encoding of Tulu Script [Captain Brijesh Chowta, L2/25-116]
- Tai Yo canonical combining classes (see also F.1)
- TOMOBIKI location
- Proposal to Encode One Small Kana Letter [CheonHyeong Sim, L2/25-036] (see also E.1)
- Katakana letter small ne (see also E.1)
- Vietnamese apex
- On the decision to rename and change the glyphs of Greek phonetic letters (revised) [Eduardo Marin Silva, L2/25-043]
- Leibniz symbols
Documents:
- Proposal to encode 11 cossic characters [Uwe Mayer, et al, L2/25-123]
- Proposal to encode 17 geometric shapes [Uwe Mayer, et al, L2/25-126]
- Proposal to encode 10 mathematical symbols [Uwe Mayer, et al, L2/25-124]
- Proposal to encode 7 historic alchemical symbols [Uwe Mayer, et al, L2/25-131]
- Towards the encoding of new alchemical symbols [Kirk Miller, Andreas Stötzner, L2/25-132]
- Unicode request for annotations to two mathematical characters [Neil Rees, Kirk Miller, L2/25-068]
- Comment on name for one asteroid symbol
- Phobos and Deimos symbols [Gavin Jared Bala, Kirk Miller, L2/25-079]
- Sidetic Naming Conventions [Debbie Anderson, et al, L2/25-141] (= WG2/N5308)
D.1.7 Proposals in-progress
Details:
- Revised Proposal for Encoding the Mwangwego Script in the UCS [Oreen Yousuf, Daniel Yacob, L2/25-039]
- Proposal on adding kTangutNumeric property to UAX #60 [Eiso Chan, L2/25-055] (see also D.3)
- Considerations about Egyptian Hieroglyph legacy characters [Michel Suignard, L2/25-110]
- Converging towards a Small Seal encoding proposal [Michel Suignard, L2/25-111] (see also D.4)
- Proposal to encode Superscript digits used in Quran published in Pakistan [Lateef Sagar Shaikh, L2/25-115]
- Follow-up glyph modifications for the alchemical symbols block [Kirk Miller, L2/25-125]
- Proposal to encode Rma script to UCS [Eiso Chan, et al, L2/25-129]
- Proposal to encode Sirmauri in Unicode [Anshuman Pandey, Biswajit Mandal, L2/25-134]
- Final Proposal for Encoding the Mwangwego Script in the UCS [Oreen Yousuf, Daniel Yacob, L2/25-135]
- Proposal to encode the Minim Dag Noore script in the UCS [Oreen Yousuf, L2/25-136]
D.1.8 Public feedback
Details:
- Comments on Public Review Issues (July 2, 2024 – Oct 24, 2024) routed to Script Encoding Working Group [Rick McGowan, L2/24-223]
- Comments on Public Review Issues (Oct 24, 2024 – Jan 2, 2025) routed to Script Encoding Working Group [Michelle, Perham, L2/25-005]
- Comments on Public Review Issues (Jan 3, 2025 – April 2, 2025) routed to Script Encoding Working Group [Michelle Perham, L2/25-071]
- Feedback from PRI #502, Unicode 16.0 Beta
- Feedback from PRI #514, Unicode 17.0 Alpha Review
D.2 PRI #519 Proposed Update UAX #57, Unicode Egyptian Hieroglyph Database (Unikemet)
Documents:
- PRI #519 Proposed Update UAX #57, Unicode Egyptian Hieroglyph Database (Unikemet)
- Proposed Update UAX #57, Unicode Egyptian Hieroglyph Database (Unikemet) (snapshot) [Michel Suignard, L2/25-108]
- Accumulated Feedback on PRI #519
- Considerations about Egyptian Hieroglyph legacy characters [Michel Suignard, L2/25-110]
- Changes to Unikemet properties between 16.0 and 17.0β [Robin Leroy, L2/25-139]
D.3 PRI #520 Proposed Draft UAX #60, Data for Non Han Ideographic Scripts
Documents:
- PRI #520 Proposed Draft UAX #60, Data for Non Han Ideographic Scripts
- Proposed Draft UAX #60, Data for Non Han Ideographic Scripts (snapshot) [Michel Suignard, L2/25-109]
- Accumulated Feedback on PRI #520
- Proposal on adding kTangutNumeric property to UAX #60 [Eiso Chan, L2/25-055]
D.4 Small Seal script (see also D.1.7, E.1)
Documents:
- Converging towards a Small Seal encoding proposal [Michel Suignard, L2/25-111]
D.5 UTN #57 Encoding and Shaping of the Mongolian Script
E. CJK and Unihan
Schedule: Wednesday, 3:00 pm – 5:30 pm
Details:
Discussion led by CJK and Unihan Group chair, Ken Lunde
E.1 CJK & Unihan Group Recommendations for UTC #183 Meeting [Ken Lunde, L2/25-090]
Details:
- Public review feedback: PRI #508 Proposed Update UAX #38 (see E.2)
- Public review feedback: PRI #513 Proposed Update UAX #50 (see E.3)
- Feedback from PRI #514, Unicode 17.0 Alpha Review
- UAX #38 Unicode Han Database (Unihan) (see also E.2)
- UAX #45, U-source Ideographs
Documents:
- Proposal to add one ideograph for Japanese place names to UAX #45 [Tsukada Masaki, L2/25-053]
- Proposal to add three abbreviated ideographs in Japan to UAX #45 [Gen Kojitani, L2/25-056]
- Proposal to add 11 ideographs used in Chinese and Japanese books, photos and advertisements [Lin Anning, L2/25-070]
- Other UTC documents
Documents / topics:
- IRG Documents
Documents / topics:
- US/Unicode Activity Report for IRG Meeting #64 [Ken Lunde, L2/25-057 (= IRG/N2763)]
- IRG Meeting #64 Recommendations and Action Items [Ken Lunde, IRG, IRG/N2765]
- China’s UNC proposal on 9 characters [Eiso Chan et al, IRG/N2753]
- US/Unicode Urgently Needed Character Proposal for Two Ideographs [Ken Lunde, L2/25-058 (= IRG/N2789)]
- UNC Proposal from National Library of China and NanJing XiaoZhuang University [DU Meng, TAO Yang, IRG/N2802R2]
- Disunification request for 15 characters [TCA, IRG/N2778]
- Proposal to Disunify U+6138 [CheonHyeong Sim, IRG/N2782]
- Proposal to Disunify U+FACB and U+2F9FF [CheonHyeong Sim, IRG/N2786]
- Feedback on the Unihan property values of U+980B [Eiso Chan, Lee Collins, IRG/N2834]
- G-Source horizontal extensions for 2,145 characters [Tao Yang et al, IRG/N2729R3]
- Clarification Regarding the T-Glyph Issue of U+2B7C2 [TCA, IRG/N2777]
- T-Source Glyph Modification and Horizontal Extension [TCA, IRG/N2779R2]
- Update of Vietnamese Glyphs with 戎 (nhung) [Eiso Chan et al, IRG/N2798]
- Vietnam Response to IRG N2795 [Eiso Chan et al, IRG/N2801]
- Feedback on IRG N2788 [Tao Yang, IRG/N2803R2]
- Feedback on IRG N2788/N2806 [Tao Yang, IRG/N2807]
- Feedback on IRG N2743/N2747/N2772R/N2787/N2790 [Tao Yang, IRG/N2805R2]
- Proposal to allow only one kTotalStrokes property value [Ken Lunde, IRG/N2711]
- Proposal to update Annex K of IRG P&P [Ken Lunde, IRG/N2715R]
- Other topics:
E.2 PRI #508 Proposed Update UAX #38, Unicode Han Database (Unihan)
Documents:
- PRI #508 Proposed Update UAX #38, Unicode Han Database (Unihan)
- Proposed Update UAX #38, Unicode Han Database (snapshot) [Ken Lunde, L2/25-098]
- Accumulated Feedback on PRI #508
E.3 PRI #513 Proposed Update UAX #50, Unicode Vertical Text Layout
Documents:
- PRI #513 Proposed Update UAX #50, Unicode Vertical Text Layout
- Proposed Update UAX #50, Unicode Vertical Text Layout (snapshot) [Ken Lunde, Koji Ishii L2/25-103]
F. Properties and Algorithms
Schedule: all items except F.3: Wednesday morning & afternoon
Details:
F.1 PAG: UTC #183 properties feedback & recommendations [Markus Scherer, et al, L2/25-087]
Details:
- Comments on Public Review Issues (Jan 3, 2025 – April 2, 2025) routed to Properties and Algorithms Group [Michelle Perham, L2/25-071]
- Feedback from PRI #514, Unicode 17.0 Alpha Review
- Unicode Set Notation [Robin Leroy, L2/25-127]
- UCD: Diacritic property for Hebrew non-spacing marks
- UCD: General_Category of two Tolong Siki characters
- UCD: Inclusion of Unihan informative properties in PropertyAliases.txt
- UCD: German example in CaseFolding.txt
- UCD: Canonical combining classes of Tai Yo marks (see also D.1.6)
- UAX #44: Loose matching and ISO_Comment (see also F.6)
- PD-UAX #60: Script-specific property names (see also D.3)
-
Properties for character proposals
Documents:
- Proposal to Encode One Kana Ligature [CheonHyeong Sim, L2/24-279]
- Unicode request for lezh with curl [Kirk Miller, L2/24-272]
- Fourth Revised Proposal to encode characters for the English Phonotypic Alphabet (EPA) [Karl Pentzlin, L2/24-136]
- Proposal to encode Hebrew Point Sheva Na [Jonathan Mosesson, L2/24-274]
- Unicode request for Initial Teaching Alphabet [Kirk Miller, L2/24-273]
- Proposal to encode the Devanagari letter Sindhi DDDA in Unicode [Biswajit Mandal, L2/25-022]
- Unicode request for letters of the RFE phonetic alphabet [Kirk Miller, L2/25-016]
- Unicode request for additional Baroque ornament [Gavin Jared Bala, Kirk Miller, L2/24-233]
- Unicode request for miscellaneous musical symbols [Gavin Jared Bala, Kirk Miller, L2/25-017]
- Response to feedback on the buzz roll in L2/24-213 [Gavin Jared Bala, Kirk Miller, L2/25-064]
- Unicode request for compound stress mark [Kirk Miller, L2/25-061]
- Proposal to Encode One Small Kana Letter [CheonHyeong Sim, L2/25-036]
- Unicode request for musical bowing symbols [Gavin Jared Bala, Kirk Miller, L2/25-018]
- Proposal to encode 5 historic mathematical operators [Uwe Mayer, et al, L2/25-062]
- Proposal to add the currency sign for the SAUDI RIYAL to the UCS [Saudi Central Bank, L2/25-075]
- UTS #18 (Regex): PROP_VALUE syntax
- Security: Identifier_Type for 40 characters
Documents:
- Proposal to Adjust Identifier Properties (revised) [Asmus Freytag, et al, L2/19-329R]
- Alphabetic Characters not recommended in UTS#39 but part of the DNS Root Zone or Second-Level Reference LGR (revised) [Asmus Freytag, L2/25-032R]
- Security: IDN security profile in UTS #39
- Security: Factors used in determining the Identifier_Type of characters [Asmus Freytag, L2/25-069]
- Security: Reclassification of Identifier_Type for existing characters
Documents:
- Proposal to Adjust Identifier Properties (revised) [Asmus Freytag, et al, L2/19-329R]
- Characters excluded from both MSR and Reference LGR but allowed in UTS#39 (revised) [Asmus Freytag, L2/25-033]
- Characters recommended in both UTS#39 and MSR but excluded from the Root Zone or Reference LGR (revised) [Asmus Freytag, L2/25-034]
- Security: Classification of Bopomofo for default identifiers (see also D.1.6)
- Security: New scripts to be added in UAX #31
- Linkification: PRI #509 feedback—see F.2
F.2 PRI #509 Proposed Draft UTS #58, Unicode Link Detection and Serialization
- PRI #509 Proposed Draft UTS #58, Unicode Link Detection and Serialization
- Proposed Draft UTS #58, Unicode Link Detection and Serialization (snapshot) [Mark Davis, L2/25-099]
- Accumulated Feedback on PRI #509
F.3 PRI #510 Proposed Draft UTR #59, East Asian Spacing
Schedule: Tuesday, 5:00 pm
- PRI #510 Proposed Draft UTR #59, East Asian Spacing
- Proposed Draft UTR #59, East Asian Spacing (snapshot) [Koji Ishii 石井宏治, L2/25-100]
- Accumulated Feedback on PRI #510
- Status of UTR #59 [Koji Ishii, L2/25-138]
F.4 PRI #511 Proposed Update UTS #10, Unicode Collation Algorithm
- PRI #511 Proposed Draft UTS #10, Unicode Collation Algorithm
- Proposed Draft UTS #10, Unicode Collation Algorithm (snapshot) [Ken Whistler, Markus Scherer, L2/25-101]
F.5 PRI #512 Proposed Update UTR #33, Unicode Conformance Model
Documents:
- PRI #512 Proposed Update UTR #33, Unicode Conformance Model
- Proposed Update UTR #33, Unicode Conformance Model (snapshot) [Ken Whistler, Asmus Freytag, L2/25-102]
F.6 PRI #516 Proposed Update UAX #44, Unicode Character Database
Documents:
- PRI #516 Proposed Update UAX #44, Unicode Character Database
- Proposed Update UAX #44, Unicode Character Database (snapshot) [Ken Whistler, L2/25-105]
F.7 PRI #517 Review of Identifier_Type for existing characters
Documents:
- PRI #517 Review of Identifier_Type for existing characters
- Review of Identifier_Type for existing characters [Asmus Freytag, L2/25-106]
F.8 Text Terminal Working Group
G. Emoji
Schedule: Wednesday, 9:50 am
Details:
Discussion led by Emoji Working Group chair, Jennifer Daniel
G.1 Emoji Standard and Research Working Group Report for UTC #183 (2025Q2) [ESC/Jennifer Daniel, L2/25-089]
Topics:
- ESR Priorities for Unicode 18.0 & beyond [Jennifer Daniel, ESR, L2/25-128]
- Update: FAQ - “Redesigning” Emoji 🤔
G.2 PRI #515: Unicode Emoji 17.0 Alpha Repertoire
Documents:
- PRI #515: Unicode Emoji 17.0 Alpha Repertoire
- Unicode Emoji 17.0 Alpha Repertoire [ESR, L2/25-104]
G.3 PRI #518: Proposed Update UTS #51, Unicode Emoji
Documents:
- PRI #518: Proposed Update UTS #51, Unicode Emoji
- Proposed Update UTS #51, Unicode Emoji (snapshot) [Mark Davis, Ned Holbrook, L2/25-107]
H. Unicode Release Management
Schedule: Tuesday morning and Thursday afternoon
Details:
H.1 Release Management Group Report to UTC #183 [RMG/Peter Constable, RMG L2/25-093]
Topics:
- Unicode 17.0
- Unicode 17.0 beta review
- Preliminary repertoire for Unicode 18.0
- Acknowledgements
- UTC and WG processes for proposed updates (see also H.2)
H.2 UTC procedures for proposed updates [Peter Constable, Robin Leroy, Ken Whistler, RMG, L2/25-118]
I. Other business
Details:
I.1 Other feedback
Schedule: Thursday afternoon
Documents:
- Comments on Public Review Issues (Jan 3, 2025 – April 2, 2025) [Michelle Perham, L2/25-071]