This version adds the following features:

• Support Android Gradle plugin version 2.2
• Support Android Gradle plugin version 3.0 (the demo app now targets this version, but it should still be buildable with versions 2.2 and 2.3)
• Add java.detach function to allow use of the Python API in background threads

And fixes the following bugs:

• test_gil_release_constructor may fail on slow or overloaded device
• Can store wrong object type in arrays on API level 15
• Several multi-threading issues

This version also increases the minimum API level for Chaquopy-based apps from 9 to 15. This is the default for new apps in Android Studio 3.0, and covers 99% of active devices.