The Lua engine remains the 5.1 base engine, but it has been enhanced with the bit32 bitwise operations from the Lua 5.2 release. For more details on the supported API, refer to http://www.lua.org/manual/5.2/manual.html#6.7

The audio plug-in with WAV file support has been added to the Android and iOS plug-in distributions.

Historically errors were logged to the Android logging system using different module names. As of 3.1 all error reporting is done using the sbengine module label.

All rotation angles are now specified as floating point values. Historical applications that used integer values for the rotation angle are still supported and will be seamlessly converted to floating point.