Breaking Changes

• Add previous scene to tabBarOnPress (#2790) - thanks @pietro909
  Now the callback to handle tap events is an object containing:

  • the previousScene: { route, index } which is the scene we are leaving
  • the scene: { route, index } that was tapped
  • the jumpToIndex method that can perform the navigation for you

New Features

• Allow custom header and back button to use the props from react-navigation (#2712) - thanks @vonovak
• Update TabBarBottom to accept styling for animations (#2945) - thanks @mujavidb
• Dispatch can be called multiple times per tick (#1313) - thanks @dantman
• Update to react-native@0.50 and flow-bin@0.56 (#2998) - thanks @Ashoat & @skevy
• Allow transition configuration between tabs (#2222) - thanks @davidtrogers

Bugfixes & Improvements

• Export all Flow types from TypeDefinition (#2903) - thanks @hawkrives
• SafeAreaView - Fix for Web usage (#2950) - thanks @rmevans9
• prevent error RawText "" must be wrapped in an explicit component (#2415) - thanks @rohozhnikoff
• fix #2953 (#2976) - thanks @vonovak
• Move SafeAreaView out of DrawerNavigatorItems to DrawerSidebar. (#2967) - thanks @davepack
• Add toString() with type for each NavigationAction (#2260) - thanks @jamesreggio
• Fix default width of drawer (#2978) - thanks @dantman
• Allow strings Component types through as screens (#2999) - thanks @Ashoat & @brentvatne
• Simplify and improve TabBar handling of keyboard (#3013) - thanks @vonovak

Documentation

• Fix Comparisons Link in Readme (#2910) - thanks @tim-soft
• Fix 'good first issue' link in README (#2919) - thanks @zachbradshaw
• Added a guide under intermediate concepts. (#2958) - thanks @shubhnik
• Update Guide-Headers.md (#2949) - thanks @vonovak
• Improvement in redux-integration documentation. (#2964) - thanks @shubhnik
• Update withNavigation.md (#2988) - thanks @vonovak
• fix typo in Guide-Headers.md (#3000) - thanks @blogscot

Repository chores

• Improve Contributing Guide (#2960) - thanks @spencercarli