I tried to make the problem happen in aperture priority, but could not. The AE lock problem appears to be fixed. Manual white balance not reset by changing to aperture priority mode. This appears to be related to the AE lock white balance fix. Things that people might have hoped would have been fixed, but are not.
Telephoto zoom on turn on is still the same, unchanged.
Flash mode changes by itself in A-Rec mode with LCD off. Manual focus distances are still wrong with the TC-E2 attached, even if you pick the telephoto lens setting. The lens focuses best at on far away objects at the 10 foot manual setting on my camera. An object 15 feet away focuses best at the 3 foot setting, etc. To take your own test shots, set your camera to aperture priority wide open so that your can see the effects better.