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 3.0.1 - 12 September, 2024

Cloud Messaging

Fixed an issue that caused EventTimestamp in Android Notifications to generate an invalid value. Thanks martinwiboe for the contribution.

Version 3.0.0 - 08 May, 2024

Dropped support for .NET Framework 4.6.1. You must now use .NET Framework 4.6.2+ or .NET 6.0+.

Version 2.4.1 - 04 April, 2024

Marked deprecated FCM batch send APIs with Obsolete tags.
Deprecated support for .NET Framework 4.6.1. The next major version of the Admin SDK will terminate support for this framework. You should upgrade your runtime frameworks accordingly.

Version 2.4.0 - 12 July, 2023

Cloud Messaging

Added SendEachAsync() and SendEachForMulticastAsync() APIs.
SendAllAsync() and SendMulticastAsync() APIs are now deprecated. Use SendEachAsync() and SendEachForMulticastAsync() APIs instead.

Version 2.3.0 - 24 March, 2022

Cloud Messaging

Added a series of new parameters to the AndroidNotification class that allow further customization of notifications that target Android devices. Thanks levimatheri for the contribution.

Version 2.2.0 - 17 June, 2021

Authentication

Added the missing EMAIL_NOT_FOUND error code.
Added support for using the authorization code flow with OpenID Connect (OIDC) providers.

Version 2.1.0 - 14 April, 2021

Authentication

FirebaseAuth and TenantManager APIs now support running against Firebase emulator suite. Enable the emulator mode by setting the FIREBASE_AUTH_EMULATOR_HOST environment variable to point to the emulator Auth endpoint. Thanks floppydisken for the contribution.

Version 2.0.0 - 04 November, 2020

Dropped support for netstandard1.5 and net45 target frameworks. Developers are now required to use netstandard2.0 or net461. Thanks DenSmoke for the contribution.
Upgraded the dependency Google.Api.Gax to the latest major version. Refer to the migration guide for more details on how this change might affect your code.

Cloud Messaging

MulticastMessage and SendAllAsync() APIs now support sending up to 500 messages in a batch.

Version 1.17.1 - 14 October, 2020

Authentication

Updated the createCustomToken() API to use the new IAM credentials API for remote token signing.

Version 1.17.0 - 30 September, 2020

Support for net45 and netstandard1.5 frameworks has been deprecated. Developers are advised to use net461 or netstandard2.0.

Version 1.16.0 - 09 September, 2020

Authentication

Added TenantManager class, which provides APIs for creating, updating, retrieving and deleting tenants in GCIP-enabled Firebase projects.
Added TenantAwareFirebaseAuth class, which provides APIs for tenant-scoped user management, token verification and IdP configuration management.
Added TenantNotFound and TenantIdMismatch error codes to the AuthErrorCode enum.
Added the nullable property TenantId to UserRecord and FirebaseToken classes.
Fixed a bug in the ImportUsersAsync() API that was preventing the correct handling of user import errors.

Version 1.15.0 - 29 July, 2020

Authentication

Added OidcProviderConfig and SamlProviderConfig classes for representing OIDC and SAML identity provider configurations.
Added new APIs to FirebaseAuth to facilitate creating, retrieving, updating and deleting identity provider configurations.

Version 1.14.0 - 17 June, 2020

Authentication

Added a new ImportUsersAsync() API for importing users in bulk.

Version 1.13.0 - 29 May, 2020

Authentication

Added GetUsersAsync() and DeleteUsersAsync() APIs for retrieving and deleting user accounts in bulk.

Version 1.12.0 - 06 May, 2020

Authentication

Added CreateSessionCookieAsync() method for creating Firebase session cookies from valid ID tokens.
Added VerifySessionCookieAsync() method for verifying Firebase session cookies in backend applications.

Version 1.11.0 - 23 April, 2020

Authentication

Added RevokeRefreshTokensAsync() API for revoking any previously issued refresh tokens to a user.
Added VerifyIdTokenAsync() API overload that checks if a given ID token has been revoked since it was issued.

Version 1.10.0 - 09 April, 2020

Authentication

Added GeneratePasswordResetLinkAsync() method for generating links for password reset flows.
Added GenerateEmailVerificationLinkAsync() method for generating links for email verification flows.
Added GenerateSignInWithEmailLinkAsync() method for generating links for email link sign-in flows.

Version 1.9.2 - 11 February, 2020

Authentication

User management APIs now correctly raise ErrorCode.AlreadyExists when an already in-use email address is specified for a user. Thanks kcieslinski for the contribution.

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.

Authentication

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.

Version 1.9.0 - 18 September, 2019

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

Authentication

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.

Version 1.8.0 - August 07, 2019

Cloud Messaging

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.

Version 1.7.0 - June 27, 2019

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.

Authentication

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.

Version 1.6.0 - June 05, 2019

Authentication

Added GetUserByEmailAsync() and GetUserByPhoneNumberAsync() methods for retrieving user accounts.

Cloud Messaging

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

Version 1.5.0 - May 30, 2019

Authentication

Added a new GetUserAsync() method that allows retrieving user accounts.
Added a new DeleteUserAsync() method that allows deleting user accounts.

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

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.

Version 1.2.1 - March 20, 2019

Authentication

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

A new FirebaseMessaging class for sending FCM messages.

Version 1.1.0 - January 24, 2019

Authentication

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

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.

Authentication

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