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- #63703 · DanielRosenwasser opened
on Jul 31, 2026 2 - #63085 · DanielRosenwasser opened
on Feb 3, 2026 42 - #62963 · RyanCavanaugh opened
on Jan 8, 2026 7
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- Status: Open.#63752 In microsoft/TypeScript;
tsgo: parser nil-pointer panic when a JSDoc @overload tags an anonymous default-export function
BugA bug in TypeScriptA bug in TypeScriptFix AvailableA PR has been opened for this issueA PR has been opened for this issueStatus: Open.[7.0] Can't access field if it is protected in one constituent of an intersection (type order dependent)
BugA bug in TypeScriptA bug in TypeScriptStatus: Open.Update wiki "Using the Compiler API" for TypeScript v7
DocsThe issue relates to how you learn TypeScriptThe issue relates to how you learn TypeScriptFix AvailableA PR has been opened for this issueA PR has been opened for this issueStatus: Open.Project references resolve a symlinked sibling's raw source instead of its own composite output, using the wrong project's compilerOptions
Needs More InfoThe issue still hasn't been fully clarifiedThe issue still hasn't been fully clarifiedStatus: Open.#63743 In microsoft/TypeScript;Rest-parameter mapped-type wrapping breaks tuple-literal inference once real-world complexity is added
Needs More InfoThe issue still hasn't been fully clarifiedThe issue still hasn't been fully clarifiedStatus: Open.#63742 In microsoft/TypeScript;Superclass type argument inferred as unknown when it's only used as a method parameter type constraint
Not a DefectThis behavior is one of several equally-correct optionsThis behavior is one of several equally-correct optionsStatus: Open.#63737 In microsoft/TypeScript;--incremental: after a pnpm dependency version change, the cached run is slower than a cold run and most of the time is unattributed
Fix AvailableA PR has been opened for this issueA PR has been opened for this issueNeeds InvestigationThis issue needs a team member to investigate its status.This issue needs a team member to investigate its status.Status: Open.Poorly formed output with JSDoc typedef
BugA bug in TypeScriptA bug in TypeScriptDomain: JSDocRelates to JSDoc parsing and type generationRelates to JSDoc parsing and type generationFix AvailableA PR has been opened for this issueA PR has been opened for this issueStatus: Open.Type argument with a subset of the parameter constraint's optional keys incorrectly reported as unassignable to constraint
BugA bug in TypeScriptA bug in TypeScriptDomain: Mapped TypesThe issue relates to mapped typesThe issue relates to mapped typesFix AvailableA PR has been opened for this issueA PR has been opened for this issueStatus: Open.Type narrowing not working correctly with Uppercase<string> & Lowercase<string>
BugA bug in TypeScriptA bug in TypeScriptDomain: check: Control FlowThe issue relates to control flow analysisThe issue relates to control flow analysisHelp WantedYou can do thisYou can do thisStatus: Open.