In moments, this update was driving me crazy. Luckily, I remembered that the Mac OS lets you customize keyboard shortcuts. So, I opened system preferences > keyboard > keyboard shortcuts --- and restored my textmate tab navigation to how they were previously! Yay!
Best Answer
Try deleting the
~/Library/Preferences/com.macromates.TextMate.preview.plist
file while TextMate is closed and then reopen it.Note: You might want to backup the file first before deleting it.