I've just released ArduPlane 2.74beta3. I'm hoping this will be the last beta before the 2.74 release. Please test it as much as you can!
The simplest way to try it is to use a pre-built firmware from http://firmware.diydrones.com.
Key features include:
- new attitude controllers
- new TECS speed/height controller (selectable by setting ALT_CTRL_ALG=2)
- new ACRO flight mode
There are many more smaller changes as well. I'll post a full list of changes in the announcement for the final 2.74 release.
Note that it may take an hour for the autobuilder to build all the firmwares for the new beta release. Check the git-version.txt in each directory to ensure it is 2.74beta3.
Many thanks to all the contributors to this release!