Client
- Feature: Android: Support opening Cinderella file (CDY) as VpnHood Key file
- Feature: Android: Changing file signature for no-google-store APK
- Update: Remove the legacy Protocol Version 3
- Update: Improve performance and battery usage
- Update: Android: Minimum requirement has been increased to Android 6.0 (Marshmallow)
Server
- Update: Remove the legacy Protocol Version 3
- Fix: Collection was modified error, which caused connection freeze temporary