I have not been on top of this list. I find it difficult to pay attention when they are not being sent to my inbox. Alas.
Anyway, the “fix” is in 1.2.3. I use quotes because it just stops the crash. The gestures are still not going to work, it’s just that the call will return an error rather than crashing the server. Until the underlying systems support the gestures, Appium can’t really do anything.