Firebase Admin .NET SDK Release Notes

To see release notes for the Firebase console and for other Firebase platforms and related SDKs, see the Firebase Release Notes.

Version 1.4.0 - April 18, 2019

  • The AppOptions class now supports specifying an HttpClientFactory, which is useful when deploying the SDK behind a proxy server.

Version 1.3.0 - March 28, 2019

Cloud Messaging

Version 1.2.1 - March 20, 2019


  • The VerifyIdTokenAsync() method now tolerates a clock skew of up to 5 minutes when comparing JWT timestamps.

Version 1.2.0 - February 14, 2019

Cloud Messaging

Version 1.1.0 - January 24, 2019


Version 1.0.0 - August 16, 2018

  • Initial release of the Admin .NET SDK. See Add the Firebase Admin SDK to your Server to get started.
  • You can configure the SDK to use service account credentials, user credentials (refresh tokens), or Google Cloud application default credentials to access your Firebase project.


  • The initial release includes the CreateCustomTokenAsync(), VerifyIdTokenAsync() methods for minting custom authentication tokens and verifying Firebase ID tokens.

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