I'm having a real hard time finding where the GAE 1.8.0 compatibility is mentioned in that document.
Most recent explicit mention of version compatibility seems to be:
AppScale version 1.6.5 was released December 19, 2012.
Bugs fixed in this release:
- Update Java AppServer to 1.7.3
- Update Python AppServer to 1.7.3
But even aside from that, are you really saying that your compatibility with GAE's releases is lagging by more than a year? The 1.8.0 version of the SDK was released in May 2013.
We currently support 1.8.0 GAE features but we do add patches that are a part of more current GAE releases if they are bug fixes.