Breaking Changes
* change: Drop Python 3.5 support (542)
New Features
* feat(auth): Add auth emulator support via the FIREBASE_AUTH_EMULATOR_HOST environment variable. (531)
Bug Fixes
* fix: Accept Path-like objects in credential factory functions (510)
* fix: Using alg=none header for custom tokens in emulator mode (541)
* fix(auth): Setting httpTimeout on certificate fetch requests (538)
Miscellaneous
* [chore] Release 5.0.0 (547)
* Fix Typo in messaging.py (546)
* chore: Upgraded Google Auth, Cloud Firestore, and Cloud Storage dependencies (544)
* Remove failing integration test added for nightly (545)
* chore: Add nightly build workflow (540)