1# 10\. Software Compatibility Testing 2 3Device implementations MUST pass all tests described in this 4section. 5However, note that no software test package is fully comprehensive. 6For this reason, device implementers are **STRONGLY RECOMMENDED** to make the 7minimum number of changes as possible to the reference and preferred 8implementation of Android available from the Android Open Source Project. 9This will minimize the risk of introducing bugs that create incompatibilities 10requiring rework and potential device updates. 11