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Switch <code>libReplacement</code> to <code>false</code> by default

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Closed (completed).

#62214 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Sep 11, 2025

<code>exactOptionalPropertyTypes</code>: strict type equality is too lenient

Not a DefectThis behavior is one of several equally-correct optionsThis behavior is one of several equally-correct options

Status: Closed (completed).

#61547 In microsoft/TypeScript;

· by rauschma was closed on Apr 9, 2025

Typo in TS1355 error message

Help WantedYou can do thisYou can do this

Possible ImprovementThe current behavior isn't wrong, but it's possible to see that it might be better in some casesThe current behavior isn't wrong, but it's possible to see that it might be better in some cases

Status: Closed (completed).

Bug

#62464 In microsoft/TypeScript;

· by dangrussell was closed on Sep 19, 2025

Enable noUncheckedSideEffectImports by default on 6.0

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Closed (completed).

#62421 In microsoft/TypeScript;

· by ArnaudBarre was closed on Sep 22, 2025

Remove support for <code>/// &lt;reference no-default-lib /&gt;</code>

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Closed (completed).

#62209 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Sep 24, 2025

Deprecate, remove <code>--moduleResolution node10</code>

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Closed (completed).

#62200 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Aug 27, 2025

Deprecate, remove support for <code>baseUrl</code>

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Closed (completed).

#62207 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Sep 30, 2025

Deprecate, remove support for using <code>module</code> in place of <code>namespace</code>

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Closed (completed).

#62211 In microsoft/TypeScript;

· by DanielRosenwasser was closed on Oct 20, 2025

fix(error message): fixes issue in error message TS1355

For Backlog BugPRs that fix a backlog bugPRs that fix a backlog bug

Status: Merged (completed).

microsoft/TypeScriptnumber 62465

#62465 In microsoft/TypeScript;

· by Janhvi21 was closed on Sep 19, 2025

Allow <code>--module bundler --moduleResolution commonjs</code>

Author: Team

For Uncommitted BugPR for untriaged, rejected, closed or missing bugPR for untriaged, rejected, closed or missing bug

Status: Merged (completed).

microsoft/TypeScriptnumber 62320

#62320 In microsoft/TypeScript;

· by andrewbranch was closed on Aug 22, 2025

Don't compare "missing" to <code>undefined</code> in <code>compareProperties</code> under <code>exactOptionalPropertyTypes</code>

For Uncommitted BugPR for untriaged, rejected, closed or missing bugPR for untriaged, rejected, closed or missing bug

Status: Merged (completed).

microsoft/TypeScriptnumber 61683

#61683 In microsoft/TypeScript;

· by HansBrende was closed on Sep 30, 2025