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TypeScript 6.0 Iteration Plan
#63085 ·
DanielRosenwasser
opened
on Feb 3, 2026
40
Transition to 6.0 Maintenance Mode
#62963 ·
RyanCavanaugh
opened
on Jan 8, 2026
7
Closing TS 6.0 LS issues
#62827 ·
RyanCavanaugh
opened
on Dec 2, 2025
13
Issues
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label
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"Domain: Error Messages"
state:open label:"Domain: Error Messages"
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Open
Closed
[Localization] Misleading Chinese translation for TS2561 error message
Bug
A bug in TypeScript
A bug in TypeScript
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
i18n
(Ping PDostalek) Translation/Localization/Internationalization of messages in the compiler.
(Ping PDostalek) Translation/Localization/Internationalization of messages in the compiler.
Status: Open.
#63274
In microsoft/TypeScript;
·
HHaoWang
opened
on Mar 20, 2026
Confusing error message (2322), should use (2741) and (2322) error message when this["XXX"] = {...} has a missing (or mispelled) key or an incompatible value.
Bug
A bug in TypeScript
A bug in TypeScript
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Status: Open.
#63206
In microsoft/TypeScript;
·
denis-migdal
opened
on Mar 2, 2026
·
Dormant
Double error message when referencing variable of type union of string literals from ambient declaration
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Fix Available
A PR has been opened for this issue
A PR has been opened for this issue
Help Wanted
You can do this
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#63050
In microsoft/TypeScript;
·
devanshj
opened
on Jan 25, 2026
·
Dormant
Deprecation error message reporting method type as deprecated instead of method name
Bug
A bug in TypeScript
A bug in TypeScript
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Status: Open.
#62396
In microsoft/TypeScript;
·
andrewbranch
opened
on Sep 4, 2025
·
Backlog
Diagnostic code
69010
may be typo of
6910
?
Bug
A bug in TypeScript
A bug in TypeScript
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Fix Available
A PR has been opened for this issue
A PR has been opened for this issue
Help Wanted
You can do this
You can do this
Status: Open.
#61971
In microsoft/TypeScript;
·
leaysgur
opened
on Jun 30, 2025
·
Backlog
Function implementation name must be ... (2389) when abstract method is declared again later
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#61783
In microsoft/TypeScript;
·
loucadufault
opened
on May 29, 2025
·
Backlog
Internal caching of Iterable types skips type checks for optional Arrays, only emits error on first encountered instance of TS error 2488
Bug
A bug in TypeScript
A bug in TypeScript
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Status: Open.
#61698
In microsoft/TypeScript;
·
cewkrupa
opened
on May 13, 2025
·
Backlog
Confusing error on computed name class member
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#61510
In microsoft/TypeScript;
·
Andarist
opened
on Mar 31, 2025
·
Backlog
Suggestion: Support readonly interfaces in
getSuggestedLibFor...
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#61323
In microsoft/TypeScript;
·
Renegade334
opened
on Mar 1, 2025
·
Backlog
Add more context to unique symbols that appear in type errors
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#61099
In microsoft/TypeScript;
·
dberlin
opened
on Feb 2, 2025
·
Backlog
misleading error message on invalid assignment when one type parameter extends another
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Help Wanted
You can do this
You can do this
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#60881
In microsoft/TypeScript;
·
kirkwaiblinger
opened
on Dec 30, 2024
·
Backlog
Confusing/inconsistent error messages when erroring on disallowed merge
Domain: Error Messages
The issue relates to error messaging
The issue relates to error messaging
Possible Improvement
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
The current behavior isn't wrong, but it's possible to see that it might be better in some cases
Status: Open.
#59808
In microsoft/TypeScript;
·
Glandos
opened
on Aug 30, 2024
·
Backlog
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