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TypeScript 4.6 Iteration Plan #46858
Description
This document outlines our focused tasks for TypeScript 4.6. It minimally indicates intent to investigate tasks or contribute to an implementation. Nothing is set in stone, but we will strive to complete these tasks in a reasonable timeframe.
| Date | Event |
|---|---|
| November 16th | TypeScript 4.5 Release |
| January 14th | Create 4.6 Beta (4.6.0) Build for Testing |
| January 18th | TypeScript 4.6 Beta Release |
| February 4th | Create 4.6 RC (4.6.1) Build for Testing |
| February 8th | TypeScript 4.6 RC Release |
| February 18th | Create 4.6 Final (4.6.2) Build for Testing |
| February 22nd | TypeScript 4.6 Final Release 🚀 |
Language and Compiler Features
- Narrowing Destructured Discriminated Unions
- Investigate Contextually Typed And Compatible Operator
lib.d.tsUpdates- Bug Fixing
Editor Productivity
- Object Member Snippet Completions
- Provide Grammar Errors in JavaScript Files
- Investigate IPC Communication for TSServer
- Enable Automatic Type Acquisition in Web Contexts
- Investigate Workspace Support in Web Contexts
- Welcome Page Contributions in Visual Studio Code
- Easy Run/Debug for Loose TypeScript Files
Performance
- Investigate Outstanding Performance Issues
- Transfer ts-analyze-trace to Microsoft
- Supporting Additional Trace Points
- Profiling/Tracing Mode Improvements
- Investigate Tooling for JIT Deoptimizations
Infrastructure
- Migrate to Modules
- Expand Perf Suite
- Fuzzer Improvements and Addressing Crashes
- Improving User Suite Reports
Website
DefinitelyTyped
Reacted by electron-space, 好喽c, lin72h, ExE Boss, C. T. Lin, Toni Villena, mori yuta, Oleksandr Tarasiuk, a11delavar, Nikos Douvlis and 7 more
Reacted by ExE Boss, Smrtnyk, Erik, C. T. Lin, Toni Villena, mori yuta, Oleksandr Tarasiuk, a11delavar, Nikos Douvlis, Julian Meinking and 4 more
Reacted by Chanakya, David B., Joe Alden, Maxime Richard, ExE Boss, James, Erik, Lauren Yim, electron-space, Alexander Kachkaev and 9 more
Reacted by Oleksandr Tarasiuk, whzx5byb, Nicholai Main, Serhii Sovhut, Matt Bierner, The web walker, Rob Palmer, Raziel, uhyo, Robb Niznik and 32 more
Activity
daKmoR commentedon Jan 16, 2022
iirc support for Nodes package exports was planned for TypeScript 4.5 but it did not happen/work out... any plan to add it to 4.6?
Sort of clarification of this comment by Ryan Cavanaugh (@RyanCavanaugh)
danielrentz commentedon Jan 19, 2022
Why aren't there any updates on the roadmap wiki page anymore?
https://github.com/microsoft/TypeScript/wiki/Roadmap
DanielRosenwasser commentedon Jan 20, 2022
Daniel Rentz (@danielrentz) I have to update that, sorry!
DanielRosenwasser commentedon Jan 20, 2022
TypeScript Bot (@typescript-bot) create release-4.6
typescript-bot commentedon Jan 20, 2022
Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to create the
release-4.6branch for you. Here's the link to my best guess at the log.danielrentz commentedon Jan 21, 2022
Thank you Daniel :)
rishipal commentedon Jan 27, 2022
Typically the npm release has a corresponding TypeScript release with the same tag. Why is there no "TypeScript 4.6 Beta Release" under https://github.com/microsoft/TypeScript/releases?
DanielRosenwasser commentedon Jan 27, 2022
Done https://github.com/microsoft/TypeScript/releases/tag/v4.6-beta
Soul-Master commentedon Feb 3, 2022
Did you forget to mention about new "es2022" target?
#46291
DanielRosenwasser commentedon Feb 11, 2022
TypeScript Bot (@typescript-bot) sync release-4.6
typescript-bot commentedon Feb 11, 2022
Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to sync
release-4.6with main for you. Here's the link to my best guess at the log.DanielRosenwasser commentedon Feb 11, 2022
Right, some tests failed and the sync/bump has to be done manually now because of the nodenext stuff. 🙄
danielrentz commentedon Feb 11, 2022
Daniel Rosenwasser (@DanielRosenwasser) Sorry to bother, but https://github.com/microsoft/TypeScript/wiki/Roadmap is still outdated.
1 remaining item
DanielRosenwasser commentedon Feb 11, 2022
In the meantime, 4.6 RC is out!
daKmoR commentedon Feb 11, 2022
Daniel Rosenwasser (@DanielRosenwasser) any clarification on what is going to happen with support for "Nodes package exports"? part of 4.6?
DanielRosenwasser commentedon Feb 12, 2022
Definitely not part of 4.6, but we're going to aim for 4.7.
DanielRosenwasser commentedon Feb 12, 2022
The roadmap page has been updated to reflect the final feature list of 4.5 and 4.6. Thanks everyone for their patience!
DanielRosenwasser commentedon Feb 22, 2022
TypeScript Bot (@typescript-bot) bump release-4.6
typescript-bot commentedon Feb 22, 2022
Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to update the version number on
release-4.6to4.6.2for you. Here's the link to my best guess at the log.wegry commentedon Feb 23, 2022
Daniel Rosenwasser (@DanielRosenwasser) is 4.6.2 out?
yarn add typescriptas of writing is still pulling intypescript@4.5.5.DanielRosenwasser commentedon Feb 25, 2022
No, not yet. I predict Monday we'll try to publish, but
typescript@4.6.2-insiders.20220225is out if you need something now. It will be effectively the same as 4.6.2.DanielRosenwasser commentedon Mar 1, 2022
Hey all, TypeScript 4.6 is now available!
Follow our next release over on the 4.7 Iteration Plan if you're interested.
DanielRosenwasser commentedon Mar 16, 2022
TypeScript Bot (@typescript-bot) bump release-4.6
typescript-bot commentedon Mar 16, 2022
Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to update the version number on
release-4.6to4.6.3for you. Here's the link to my best guess at the log.DanielRosenwasser commentedon Mar 29, 2022
TypeScript Bot (@typescript-bot) bump release-4.6
typescript-bot commentedon Mar 29, 2022
Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to update the version number on
release-4.6to4.6.4for you. Here's the link to my best guess at the log.