Firebase Admin .NET SDK Release Notes

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

Version 1.9.1 - 16 October, 2019

SDK automatically retries HTTP requests that are failing due to low-level I/O errors and HTTP 503 errors.

ExportedUserRecord does not expose password hashes that are redacted due to lack of permissions in the service account credentials.
Fixed an issue with IAM-based custom token signing, that resulted in permission errors.

Fixed an issue that caused async API calls to deadlock in some environments. Thanks NiCoTinEz for the contribution.

Introduced a new FirebaseAuthException class and an AuthErrorCode enum type for improved error handling support. All user management APIs now throw instances of the FirebaseAuthException class. This is a subclass of the existing FirebaseException type.
ID token verification APIs now throw instances of the FirebaseAuthException class.
CreateCustomTokenAsync() APIs now throw FirebaseAuthException if an error occurs while signing custom tokens. If the service account is not correctly configured, this API throws an InvalidOperationException.

Added SubscribeToTopicAsync() and UnsubscribeFromTopicAsync() methods to the FirebaseMessaging class for managing topic subscriptions. Thanks Leo-Mepham for the contribution.
Added support for specifying the analytics label for notifications via AndroidFcmOptions, ApnsFcmOptions and FcmOptions classes. Thanks RannyRanny for the contribution.
Introduced a new FirebaseMessagingException class and a MessagingErrorCode enum type for improved error handling support. All FCM APIs now throw instances of the FirebaseMessagingException class. This is a subclass of the existing FirebaseException type.

Added netstandard2.0 to the TargetFrameworks list of the package.
Began compiling releases on the .NET Framework instead of Mono. This should resolve some of the library linkage issues reported by developers on previous versions of the SDK.

Added the CreateUserAsync() method for creating new user accounts.
Added the UpdateUserAsync() method for updating exiting user accounts.
Added the ListUsersAsync() method for listing or iterating over all users accounts in a Firebase project. Thanks ChristopherLenz for the contribution.

Added WebpushFcmOptions API for specifying Webpush-specific notification options. Thanks Odonno for the contribution.

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

Added a new SendMulticastAsync() API for sending a message to a list of device registration tokens. Thanks kentcb for the contribution.
Added a new SendAllAsync() API for sending a list of messages as a single batch. Thanks kentcb for the contribution.

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

A new SetCustomUserClaimsAsync() method has been added to the FirebaseAuth class for setting custom claims on Firebase user accounts. Thanks dominikfoldi for the contribution.

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.