IRG N2935

IRG Meeting #67 Schedule & Agenda

ISO

2026-10-12 through 2026-10-16

SAT Daizōkyō Text Database Committee (Host) & JSPS KAKENHI Grant Number JP25H00001 (Co-Host)

Tokyo, Japan

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Last Update: 2026-10-13

IRG Meeting #67 will be conducted as a hybrid in-person/online meeting. Online participants will use Zoom.

All dates and times shown are Japan Standard Time (UTC/GMT+09:00).

Schedule

Monday, October 12, 2026:
1. Opening Speech by Meeting Host & Convenor 10:30
2. Administrative Topics morning
3. Member Body Activity Reports morning
4. Review of Recommendations and Action Items from IRG Meeting #66 morning
Lunch 12:30 to 14:00
6. Urgently Needed Ideograph Proposals afternoon
7. Disunification Proposals & Documents afternoon
8. Horizontal Extension Proposals & Documents afternoon
Break Approximately 15:30
9. Other Documents afternoon
Welcome Dinner evening

Tuesday, October 13, 2026:
5. IRG Working Set 2024 Version 5.0 09:30
Break Approximately 11:00
5. IRG Working Set 2024 Version 5.0 (cont’d) morning
Lunch 12:30 to 14:00
5. IRG Working Set 2024 Version 5.0 (cont’d) afternoon
Break Approximately 15:30
5. IRG Working Set 2024 Version 5.0 (cont’d) afternoon

Wednesday, October 14, 2026:
5. IRG Working Set 2024 Version 5.0 (cont’d) 09:30
Break Approximately 11:00
5. IRG Working Set 2024 Version 5.0 (cont’d) morning
Lunch 12:30 to 14:00
9. Other Documents afternoon
Break Approximately 15:30
9. Other Documents (cont’d) afternoon

Thursday, October 15, 2026:
10. Final Document Preparation 09:30
Break Approximately 11:00
10. Final Document Preparation (cont’d) morning
Lunch 12:30 to 14:00
11. Approval of Meeting Recommendations and Action Items afternoon
12. Meeting Adjournment afternoon

Friday, October 16, 2026:
BiangBiangCon (𰻞𰻞会) — East Asia Encoding Meetup all day

Agenda

Agenda Legend

Document number Documents that have not yet been posted to the IRG document register; also used for tentative meeting dates
Document title With the exception of member body activity reports, documents that were submitted after the submission deadline
✅ Agenda items that have be completed
🟡 Agenda items that need to be revisited, either during this meeting or at the next one
🔴 Agenda items that were not discussed

1. ✅ Opening Speech by Meeting Host & Convenor

2. Administrative Topics

Schedule: Monday

Topics:

2.1 ✅ Roll call

2.2 ✅ Approval of agenda items

2.3 ✅ Review of work planning and future meeting schedule

  • ✅ Recommendation IRG M66.01: Future Meeting Schedule (IRG N2909)
  • ✅ IRG Meeting #68: Virtual (Webex), 2027-03-15/19 — confirmed by WG 2
  • ✅ IRG Meeting #69: Ho Chi Minh City, Vietnam (hybrid), 2027-10-11/15 — confirmed by WG 2
  • ✅ IRG Meeting #70: Virtual (Webex), 2028-03-13/17 — confirmed by WG 2
  • ✅ IRG Meeting #71: Fall 2028 — seeking host

2.4 Address Book Revision (IRG N2949 & IRG N2950)

2.5 ✅ IWDS Updates

3. ✅ Member Body Activity Reports

Schedule: Monday

Topics:

3.1 ✅ China (IRG N2936)

3.2 ✅ Hong Kong SAR (IRG N2937)

3.3 ✅ Macao SAR (IRG N2938)

3.4 ✅ TCA (IRG N2939R)

3.5 ✅ Japan (IRG N2940)

3.6 ✅ ROK (IRG N2941)

3.7 ✅ SAT (IRG N2942)

3.8 ✅ UK (IRG N2943)

3.9 ✅ US/Unicode (IRG N2944)

3.10 ✅ Vietnam (IRG N2945)

3.11 ✅ W3C (IRG N2971)

4. ✅ Review of Recommendations and Action Items from IRG Meeting #66 (IRG N2909)

Schedule: Monday

Note from WG 2 Convenor: Unicode Version 18.0 is to be synchronized with ISO/IEC 10646 7th Edition, meaning that anything that is reflected in Unicode Version 18.0 (2026) will be incorporated into the next progression of ISO/IEC 10646 7th Edition (aka DIS).

Topics:

4.1 ✅ M66.04: Updated UCV and NUCV Lists (IRG N2931)

Current Status: IRG experts should be reviewing document IRG N2931 with comments due by 2026-07-24.

4.2 ✅ M66.08: Next IRG Working Set Submission Estimates

Current Status: The following are the estimated number of ideographs that each IRG member body would ideally submit:
  • China: 2500–3000
  • Hong Kong SAR: none
  • Japan: none
  • Macao SAR: none
  • ROK: 200
  • SAT: 300
  • TCA: 1500–2000
  • UK: 1000
  • UTC: 200
  • Vietnam: 5000
  • W3C: none

4.3 ✅ M66.09: China Horizontal Extension (IRG N2929)

Current Status: IRG experts provide to China feedback on document IRG N2929 by 2026-08-28. See Section 8.1.

4.4 ✅ M66.10: Revised G-Source References (IRG N2919R, IRG N2923R & IRG N2930)

Current Status: The three kIRG_GSource property values changes proposed in document IRG N2930 were recommended by the UTC’s CJK & Unihan Working Group for Unicode Version 18.0, and were subsequently accepted by the UTC during UTC Meeting #187. These changes are reflected in Unicode Version 18.0 that was released on 2026-09-16. Also see Section 9.1.

4.5 ✅ M66.11: Revised G-Source Representative Glyphs (IRG N2919R)

Current Status: See Section 9.1.

4.6 ✅ M66.12: Revised T-Source Representative Glyphs (IRG N2927R)

Current Status: The T-source representative glyph change of U+2976E was recommended by the UTC’s CJK & Unihan Working Group for Unicode Version 18.0, and was subsequently accepted by the UTC during UTC Meeting #187. This change is reflected in Unicode Version 18.0 that was released on 2026-09-16.

4.7 ✅ M66.13: Revised K-Source Representative Glyphs (IRG N2916)

Current Status: The K-source representative glyph change of U+2DB7C, along with its kRSUnicode property value change, was recommended by the UTC’s CJK & Unihan Working Group for Unicode Version 18.0, and were subsequently accepted by the UTC during UTC Meeting #187. ROK submitted to WG 2 a TrueType font with the updated K-source representative glyph for U+2DB7C on 2026-04-22. These changes are reflected in Unicode Version 18.0 that was released on 2026-09-16.

4.8 ✅ M66.14: Revised UK-Source Representative Glyphs (IRG N2918)

Current Status: See Section 9.1.

4.9 ✅ M66.15: Revised V-Source Representative Glyphs (IRG N2928)

Current Status: See Section 9.1.

4.10 ✅ M66.16: Establishing a Normative IRG Source for Singapore (SG) (IRG N2926)

Current Status: The IRG Convenor submitted document IRG N2926 to WG 2 on 2026-05-25 for consideration during WG 2 Meeting #73, which was posted as document WG 2 N5359. WG 2 recommended adding a new normative kIRG_SGSource property, which SC 2 accepted for ISO/IEC 10646 Seventh Edition, Amendment 1 on 2026-06-26 via SC 2 Resolution M 31-05 in document SC 2 N5056, and which will be targeted for Unicode Version 19.0 (2027).

4.11 ✅ M66.17: CJKV Components Blocks (IRG N2878R3)

Current Status: The IRG Convenor prepared the “Proposal Summary Form,” appended it to document IRG N2878R3 on 2026-03-20, and submitted it to WG 2 on 2026-03-22 for consideration during WG 2 Meeting #73, which was posted as document WG 2 N5358. WG 2 recommended accepting the two new blocks, which SC 2 accepted for ISO/IEC 10646 Seventh Edition, Amendment 1 on 2026-06-26 via SC 2 Resolution M 31-05 in document SC 2 N5056, and which will be targeted for Unicode Version 19.0 (2027). The following 11 ideographs that are included in the CJK Unified Ideographs Components-B block are also included in IRG Working Set 2024, and should therefore be withdrawn from the latter:

4.12 ✅ M66.18: Consolidated FS & SC Guidelines (IRG N2862R2 & IRG N2951)

Current Status: Document IRG N2951 was posted and added to IWDS Series 1 on 2026-04-02.

4.13 ✅ M66.19: Rules for Assigning Radicals (IRG N2925 & IRG N2952)

Current Status: Document IRG N2952 was posted on 2026-09-25 and is ready for review by IRG experts.

4.14 ✅ M66.20: IRG P&P Update (IRG N2850R)

Current Status: The IRG Convenor published IRG Principles & Procedures Version 18 on 2026-04-17.

5. 🟡 IRG Working Set 2024 Version 5.0

Schedule: Tuesday & Wednesday

Topics:

5.1 ✅ IRG Working Set 2024 Version 5.0 (IRG N2932)

5.2 ✅ IRG Working Set 2024 Version 5.0 Consolidated Comments (IRG N2933)

5.3 🟡 Specific issues that require attention:

5.4 Editorial Report (IRG N2947)

6. 🟡 Urgently Needed Ideograph Proposals

Schedule: Monday

Topics:

🟡 6.1 China’s UNC proposal on 1 character for Collected Works of Mao Zedong (IRG N2969R)

7. ✅ Disunification Proposals & Documents

Schedule: Monday

Topics:

✅ Some Further Research on U+2EA07 (IRG N2983)

8. 🟡 Horizontal Extension Proposals & Documents

Schedule: Monday

Topics:

8.1 🟡 G-Source horizontal extensions for 9178 characters (IRG N2929R2)

8.2 ✅ UK Horizontal Extensions (IRG N2960)

8.3 🟡 U-Source Horizontal Extension (IRG N2961R3)

8.4 🟡 V-Src Horizontal Extension (IRG N2970)

8.5 🟡 T-Source horizontal extensions for 700 characters (IRG N2972R)

9. Other Documents

Schedule: Monday & Wednesday

Topics:

9.1 Representative Glyph & Source Reference Issues

  • Redux: Proposal on modifying 3 G-source representative glyphs and changing 10 G-source references (IRG N2919R)
  • Redux: Proposal for updating G-source references for 329 characters and G-source horizontal extensions for 9 characters (IRG N2923R)
  • ✅ Feedback to IRG N2954 and IRG N2955 (IRG N2985)
    • ✅ Possible G-Source Representative Glyph Issue for U+2CCA3 (IRG N2954)
    • ✅ Feedback on IRG N2954 (IRG N2955)
  • ✅ Feedback to IRG N2956 (IRG N2986)
    • ✅ G-source representative glyph and source reference issues in Extension C (IRG N2956)
    • ✅ Feedback on IRG N2956 (IRG N2957)
  • Request to revise some G-source glyphs (IRG N2958)
  • Request to revise some G-source glyphs (IRG N2962R2)
    • Note from Convenor: U+2B8BF 𫢿, U+2B8EE 𫣮, and U+2BA44 𫩄 are mentioned in this document and in document IRG N2963R3 below with conflicting viewpoints that need to be considered.
  • Proposal to revise some GZJW-Source Glyphs (IRG N2963R3)
    • Note from Convenor: U+2B8BF 𫢿, U+2B8EE 𫣮, and U+2BA44 𫩄 are mentioned in this document and in document IRG N2962R2 above with conflicting viewpoints that need to be considered.
  • Proposal on the glyph issue of U+21D0A and U+20553 (IRG N2976)
  • Proposal for handling the issues of U+26842 and U+26866 (IRG N2977)
  • Issue on SAT-source glyphs (IRG N2959)
  • Redux: Proposal to update the reference glyphs for 2 UK-source ideographs (IRG N2918)
  • Possible T-Source Issue for U+3097C (IRG N2974)
  • Redux: Enquiry on the glyphs of U+268A1 and U+268A2 (IRG N2928)
    • Follow up on U+268A1 and U+268A2 (IRG N2928) (IRG N2953)

9.2 IRG P&P Documents

9.3 SC 2 Documents

  • ✅ Revised Terms of Reference for SC 2/AG 1: Ideographic Research Group (IRG) [SC 2 N5063] (IRG N2967)

9.4 Miscellaneous Documents

  • ✅ Rules for Assignment of Radicals (Version 1) (IRG N2952)
  • MetaHan: Work in Progress (IRG N2968)
  • ✅ Proposal on Chinese in IRG Technical Discussions and Meeting Facilitation (IRG N2973)

9.5 Editorial Report on Miscellaneous Issues (IRG N2948)

10. Final Document Preparation

Schedule: Thursday

Topics:

10.1 Editorial Report (IRG N2947)

10.2 Editorial Report on Miscellaneous Issues (IRG N2948)

10.3 IRG Meeting #67 Recommendations and Action Items (IRG N2946)

11. Approval of Meeting Recommendations and Action Items

Schedule: Thursday

Topics:

11.1 IRG Meeting #67 Recommendations and Action Items (IRG N2946)

12. Meeting Adjournment 🎉