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TypeScript 4.2 Iteration Plan #41601

Description

This document outlines our focused tasks for TypeScript 4.2, as well as some of the discussion that explains how/why we prioritized certain work items. Nothing is set in stone, but we will strive to complete them in a reasonable timeframe.

Date Event
November 19th TypeScript 4.1 Release
January 8th Create 4.2 Beta (4.2.0) Build for Testing
January 12th TypeScript 4.2 Beta Release
February 5th Create 4.2 RC (4.2.1) Build for Testing
February 9th TypeScript 4.2 RC Release
February 19th Create 4.2 Final (4.2.2) Build for Testing
February 23rd TypeScript 4.2 Final Release 🚀

Language Features

Editor Productivity

Performance

Infrastructure

  • Perf Regression Tracking
    • Committing Scripts to Repo
    • Integrate into Release Activities
  • Perf Suite Reliability

Activity

  1. jogibear9988 commented on Nov 27, 2020

    @jogibear9988

    Is there a way to suggest issues/tasks for a TS release?

  2. DanielRosenwasser commented on Nov 30, 2020

    @DanielRosenwasser
    MemberAuthor

    Vote on existing issues, or file a new one if one doesn't already exist. We do pay attention to a few of the nudges in these threads, but really discourage people from turning the entire thread into a discussion point for a single feature.

  3. x87 commented on Dec 7, 2020

    @x87

    https://www.typescriptlang.org/ shows the next version as 4.1, and the link points here:
    Screen Shot 2020-12-07 at 12 33 16 PM

  4. RyanCavanaugh commented on Dec 7, 2020

    @RyanCavanaugh
    Member
  5. ExE-Boss commented on Dec 7, 2020

    @ExE-Boss
    Contributor
  6. RyanCavanaugh commented on Dec 7, 2020

    @RyanCavanaugh
    Member

    Thanks for the quick pointer ExE Boss (@ExE-Boss), I've fixed it

  7. orta commented on Dec 11, 2020

    @orta
    Contributor

    Thanks folks!

  8. orta commented on Dec 11, 2020

    @orta
    Contributor

    Linking the lib DOM changes issue: microsoft/TypeScript-DOM-lib-generator#960

  9. DanielRosenwasser commented on Jan 6, 2021

    @DanielRosenwasser
    MemberAuthor

    Heads up, lots of people are just coming back from vacation, so we'll be releasing the beta next week instead.

  10. DanielRosenwasser commented on Jan 10, 2021

    @DanielRosenwasser
    MemberAuthor
  11. typescript-bot commented on Jan 10, 2021

    @typescript-bot
    Contributor

    Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to create the release-4.2 branch for you. Here's the link to my best guess at the log.

  12. DanielRosenwasser commented on Jan 10, 2021

    @DanielRosenwasser
    MemberAuthor

    Looks like the "origin types" PR (#42149) has broken the baselines, which is making tests fail.

  13. DanielRosenwasser commented on Jan 10, 2021

    @DanielRosenwasser
    MemberAuthor
  14. 13 remaining items

  15. longlho commented on Feb 17, 2021

    @longlho
    Contributor

    Can #42134 be revised/reverted please?

  16. DanielRosenwasser commented on Feb 20, 2021

    @DanielRosenwasser
    MemberAuthor
  17. typescript-bot commented on Feb 20, 2021

    @typescript-bot
    Contributor

    Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to update the version number on release-4.2 to 4.2.2 for you. Here's the link to my best guess at the log.

  18. DanielRosenwasser commented on Mar 3, 2021

    @DanielRosenwasser
    MemberAuthor
  19. typescript-bot commented on Mar 3, 2021

    @typescript-bot
    Contributor

    Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to update the version number on release-4.2 to 4.2.3 for you. Here's the link to my best guess at the log.

  20. Jack-Works commented on Mar 5, 2021

    @Jack-Works
    Contributor

    Reverse link to 4.3 iteration plan #42762 (mentioned from 4.3 iteration plan won't send mail to people who subscribed to 4.2 iteration plan)

  21. DanielRosenwasser commented on Apr 5, 2021

    @DanielRosenwasser
    MemberAuthor
  22. typescript-bot commented on Apr 5, 2021

    @typescript-bot
    Contributor

    Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to update the version number on release-4.2 to 4.2.4 for you. Here's the link to my best guess at the log.

  23. aslatter commented on Apr 8, 2021

    @aslatter

    FYI - it looks like NPM has a version 4.2.4, but GitHub doesn't have a tag v4.2.4 or a release for 4.2.4.

  24. brad4d commented on Apr 9, 2021

    @brad4d

    Can we expect to have a v4.2.4 defined by 2021-04-12, or is more time needed before that can happen?
    Within Google we're anxious to get the fix for JSDoc annotations getting copied to overloads.
    It's causing spurious deprecation warnings for our users.
    We need an official v4.2.4 tag so we can upgrade.
    Thanks.

  25. orta commented on Apr 9, 2021

    @orta
    Contributor
  26. longlho commented on Apr 10, 2021

    @longlho
    Contributor

    Can I get #42945 in as well?

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