• Adds support for regular expression-based custom headers and rewrites for Firebase Hosting. (#2391)
• Fixes a bug with RTDB Rules hot reloading in the RTDB emulator. (#2371)
• Changes default functions runtime to Node.js 10 for firebase init.
• Adds import/export support to the Realtime Database emulator.
• Adds application default credentials inside the Functions emulator (#1940)
• Fixes firebase init firestore when no project is specified (#2399)