TextMate undoes typed text one character at a time. I'm using chunked undo to mean the OS X standard behavior where undo applies for everything typed after a retype delay. Can TextMate do this?
Judging from the release notes (Help » Release Notes) nothing has been changed about Undo since its developer Allan Odgaard commented here in Nov 2006:
Since then, only rather minor changes in TextMate have occurred, none of them related to undo/redo. A user on the TextMate blog commented about a year ago:
Since then, only three very minor revisions to TextMate have been released.
Appears to be unchanged.