The interface was additionally modified:
- The magic number for identification has been changed from 0xFF669900 to 0x0x412D424C ("A-BL"), making the interface incompatible to older versions.
- Several macros have been replaced by enums.
- Some structs and enums have been renamed, making the interface incompatible to version 0.3.
The memory layout, however, is unchanged so that required operating system tweaks are minimal.