Android Studio 2.2 Preview 4 发布了，该版本解决了一些大Bugs，以及增加了一些小功能特性。开发者预览版本或者测试版本Google将采用黄色Android Studio图标，标准版本继续采用绿色的图标。
- Many bug fixes, we are working hard to address all reproducible issues. Please continue to file them.
Updated JDK for Mac
- Mac JDK updated to include all fixes from Jetbrains over the last month or so. We hope that it fixes crashes like https://code.google.com/p/android/issues/detail?id=213742.
- Various bug fixes
- Pan & zoom panel is now a floating window accessible from the toolbar
Importing VectorDrawable from Photoshop files
- Strokes are now supported
- Clipping masks are now supported
- Shape operations are now supported (merge, subtract, intersect and exclude overlapping)
- Fill opacity is now supported
- XML output optimized for size
Photoshop files support
- Improved support for CMYK and Lab images
- Improved color management on OS X
- Bug Fixes
- Improved Directions.