Skip to content

09.md

Latest commit

 

History

History
177 lines (139 loc) · 14.5 KB

09.md

File metadata and controls

177 lines (139 loc) · 14.5 KB
Raw

Ecma logo

Agenda for the 110th meeting of Ecma TC39

  • Host: Remote
  • Dates and times:
    • 10:00 to 15:00 CDT (America/Chicago) on 22 September 2025
    • 10:00 to 15:00 CDT (America/Chicago) on 23 September 2025
    • 10:00 to 15:00 CDT (America/Chicago) on 24 September 2025
    • 10:00 to 15:00 CDT (America/Chicago) on 25 September 2025
  • Location: Remote
  • Attendee information: https://github.com/tc39/Reflector/issues/568
  • Total duration of scheduled discussions: dynamically computed total of timeboxes on the agenda
gantt
  1 month before the meeting: milestone, 2025-08-22 10:00-0500, 1m
  Proposal advancement deadline: milestone, 2025-09-12 10:00-0500, 1m
  Schedule constraint deadline: milestone, 2025-09-19 10:00-0500, 1m
  Day 1 : day1, 2025-09-22 10:00-0500, 7h
  Day 2 : day2, 2025-09-23 10:00-0500, 7h
  Day 3 : day3, 2025-09-24 10:00-0500, 7h
  Day 4 : day4, 2025-09-25 10:00-0500, 7h
  todayMarker stroke-width:5px,stroke:#0f0,opacity:0.5
Loading

For meeting times in your timezone, visit Temporal docs and run the code below in the devtools console.

Temporal.ZonedDateTime.from('2025-09-22T10:00[America/Chicago]')
  .withTimeZone(Temporal.Now.timeZoneId()) // your time zone
  .toLocaleString();

Background:

Agenda topic rules

Deadline for advancement eligibility: Sept 12th 10:00 CDT

  • Note: this time is selected to be precisely 10 days prior to the start of the meeting
  1. Proposals not looking to advance may be added at any time; if after the deadline, please always use a pull request so that members are notified of changes. Note: an unmerged PR counts as “added” for the purposes of this requirement.
  2. Proposals seeking feedback at stage 0 must be added (and noted as such) prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
    1. Such proposals should include supporting materials when possible.
  3. Proposals looking to advance to stage 1 must be added (and noted as such) prior to the deadline, or else delegates may object to advancement solely on the basis of missing the deadline.
    1. Such proposals must link to a proposal repository and they should link to supporting materials when possible.
  4. Proposals looking to advance to stages 2, 2.7, 3, or 4, as well as other normative changes to the standard or proposals in stage 3 or later looking to achieve consensus, must be added (and noted as such) along with links to the supporting materials prior to the deadline, or else delegates may withhold consensus for advancement solely on the basis of missing the deadline.
    1. If the supporting materials change substantially after the deadline, delegates may withhold consensus for advancement, based on the committee’s judgment.
    2. For urgent normative changes, the committee is expected to be more forgiving of a missed deadline, since there is generally less material to review than in a stage advancement.
    3. Proposals looking to advance to stage 4 must link to a pull request into the spec, since the process requires one.
  5. Proposal-based agenda items should be sorted primarily by stage (descending), secondarily by timebox (ascending), and finally by insertion date.

Supporting materials includes slides, a link to the proposal repository, a link to spec text, etc.; essentially, anything you are planning to present to the committee, or that would be useful for delegates to review.

Agenda key

When applicable, use these emoji as a prefix to the agenda item topic.

Emoji Meaning
❄️ hard schedule constraints apply to this agenda item (e.g. presenter)
🔒 schedule constraints apply to this agenda item
⌛️ late addition for stage advancement and/or schedule prioritization
🔁 continuation of a previous agenda item

Agenda items

  1. Opening, welcome and roll call (Chair)

    1. Opening of the meeting
    2. TC39 follows its Code of Conduct
    3. Introduction of attendees
    4. Host facilities, local logistics
    5. Quick recap of meeting IPR policy
    6. Overview of communication tools
    7. Reminder to review Github Delegate teams (Jordan Harband)
    8. TC39 stenography support and legal disclaimer

  2. Find volunteers for note taking

  3. Adoption of the agenda

  4. Approval of the minutes from last meeting

  5. Next meeting host and logistics

  6. Secretary's Report (15m, Samina Husain) (slides)

  7. Project Editors’ Reports

    1. ECMA262 Status Updates (slides) (15m)
    2. ECMA402 Status Updates (slides) (15m)
    3. ECMA404 Status Updates (15m)
    4. Test262 Status Updates (15m)

  8. Task Group Reports

    1. TG3: Security (5m)
    2. TG4: Source Maps (5m) (slides)
    3. TG5: Experiments in Programming Language Standardization (5m)

  9. Updates from the CoC Committee (5m)

  10. Web compatibility issues / Needs Consensus PRs

    timebox topic presenter
    10m Normative: Add [[CompactDisplay]] slot to Intl.PluralRules (slides) Ben Allen
    10m Normative: Make Intl.PluralRules ResolvePlural and associated AOs take Intl mathematical values rather than Numbers (slides) Ben Allen
    20m Normative: change PromiseResolve species check (slides) Mathieu Hofman
    30m Convention: strings-as-enums are kebab-case (PR to normative-conventions.md) Kevin Gibbons
    60m Increase limits on Intl MV with discussion of how and when to set bounds in the spec (slides) Shane F Carr

  11. Overflow from previous meeting

    timebox topic presenter

  12. Short (≤30m) Timeboxed Discussions

    timebox topic presenter

  13. Proposals

    stage timebox topic presenter
    3 30m Temporal update and normative change (slides) Philip Chimento
    2.7 30m Non-extensible Applies to Private for stage 3 (slides.key, slides.pdf) Mark Miller
    2.7 20m Intl Era Month Code Stage 2.7 Update (slides) Ben Allen
    2 10m Deferred re-exports update (slides) Nicolò Ribaudo
    2 30m AsyncContext yield* behavior (draft commit, slides) Nicolò Ribaudo or Andreu Botella
    2 30m Iterator Chunking for Stage 2.7 (slides) Michael Ficarra (or KG as backup)
    2 30m Import Bytes for Stage 2.7 (slides) Steven Salat
    1 30m Update on proposal-await-dictionary [spec, slides] Ashley Claymore
    1 30m Update on proposal-module-global, (slides) ZB Tenerowicz and Kris Kowal
    1 30m Amount for Stage 2 (slides) Ben Allen
    0 20m Native Promise Predicate for stage 1 or 2 [spec, slides] Mathieu Hofman
    0 20m Array.prototype.pushAll for Stage 1 (slides) Daniel Rosenwasser
    0 30m Native Promise Adoption for stage 1 [spec, slides] Mathieu Hofman

  14. Longer or open-ended discussions

    timebox topic presenter
    60m How Websites are Put Together (WIP slides) Kevin Gibbons
    60m Stage 2+ Proposal Review Peter Klecha

  15. Overflow from timeboxed agenda items (in insertion order)

    topic presenter
    Amount continuation Shane Carr, Ben Allen (slides)

  16. Incubation call chartering (15m on the last day)

  17. Other business

    1. Thank host

  18. Adjournment

Schedule constraints

Schedule constraints should be supplied here as soon as possible, and at least three days before the meeting begins so that the Chairs can take them into account when preparing the schedule.

Normal Constraints

  • MF is only able to attend this meeting for the first 4 hours of Monday, the 22nd (I know, I'm sorry). If iterator chunking cannot be presented in that limited time range, KG will act as backup presenter.
  • MAH would like to present promise related topics in the following order: "change PromiseResolve species check", "Native Promise Adoption", and "Native Promise Predicate". Collocated might make sense but not necessary.
  • KKL would like to present "Update on proposal-module-global” in an afternoon session. If necessary and with forewarning, KKL can present at 11am Chicago at the earliest any day except Monday.
  • Philip Chimento: I would prefer not to present on Monday 22nd, but I can do it if really needed.
  • SFC would like to be present for "Increase limits on Intl MV", "Amount for Stage 2", "Temporal update", and Ben Allen's two ECMA-402 PRs. SFC is not available from 13:00-15:00 on Monday, 10:00-13:30 on Tuesday, 12:30-13:30 on Wednesday, and 10:00-12:00 on Thursday (all times in CDT). He is available 10:00-12:30 on Wednesday but prefers to not be the presenter (of "Increase limits on Intl MV") at that time.

Late-breaking Schedule Constraints

  • SFC would like to attend "Convention: strings-as-enums are kebab-case". Schedule constraints are the same as those listed above under "Normal Constraints".
  • DRR would be able to present "Array.prototype.pushAll" on Monday 22nd (ideally earlier) or on the 25th, but not on the 23rd/24th.
  • STY is unavailable for the first 30 minutes of Monday and first hour of Wednesday
  • ZTZ not available on Wednesday