Does this issue occur when all extensions are disabled?: Yes/No

As of June 2025, the type for the lineComment property in CommentRule interface was changed and a new LineCommentConfig interface was introduced in PR #243283, specifically commit d9145a2.

So the current type of string is now out of date. Please could you add the changes accordingly.

Originally posted by @yCodeTech in DefinitelyTyped/DefinitelyTyped#74363