Bumped version to 2.18.0 (#333)

* Bumped version to 2.18.0

* Removing extra whitespace

Author: hiranya911

CHANGELOG.md

@@ -2,6 +2,16 @@
 
 -
 
+# v2.18.0
+
+- [added] Added support for specifying the analytics label for notifications.
+- [added] Added support for arbitrary key-value pairs in `messaging.ApsAlert`.
+- [changed] The `WebpushFcmOptions` type is now deprecated. Developers should use
+  the PEP8 compliant type name `WebpushFCMOptions` instead.
+- [added] Developers can now test their Database API calls by directing the
+  SDK traffic to the RTDB emulator. Set the `FIREBASE_DATABASE_EMULATOR_HOST`
+  environment variable to specify the emulator endpoint in `host:port` format.
+
 # v2.17.0
 
 - [added] Added new `send_all()` and `send_multicast()` APIs to the

firebase_admin/__about__.py

@@ -14,7 +14,7 @@
 
 """About information (version, etc) for Firebase Admin SDK."""
 
-__version__ = '2.17.0'
+__version__ = '2.18.0'
 __title__ = 'firebase_admin'
 __author__ = 'Firebase'
 __license__ = 'Apache License 2.0'