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npm · #4157 most downloaded on npm
Firebase JavaScript library for web and Node.js
Last release today
06 Oct 2026
Ships on a steady schedule
a new release about every 3 weeks
Nearly every release is documented
notes for 60 of the last 60 stable releases
2 versions withdrawn
withdrawn after publishing
15 years old
4222 releases · first in 2012
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One column per quarter.
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`a6af7c279` #3825 - Allow setting a custom domain for callable Cloud Functions.
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`7bf73797d` #3813 (fixes #414) - Escape unicodes when generating CDN scripts, so they work correctly in environments that requires UTF-8, for example,
Caution: Versions 7.21.1 and 7.22.0 contain an issue in the Cloud Functions for Firebase Client SDK that causes callable functions to throw an error. If you use callable functions, upgrade to version 7.22.1 or later.
Fixed an issue that prevented waitForPendingWrites() from resolving in background tabs when multi-tab is used. See GitHub issue #3816 .
Fixed a "Comparison with -0" lint warning for customers that build from source. See GitHub issue #3814 .
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`f9004177e` #3772 - [feature] Added not-in and != query operators for use with .where(). not-in finds documents where a specified field’s value is not
f9004177e #3772 - [feature] Added not-in and != query operators for use with .where(). not-in finds documents where a specified field’s value is not in a specified array. != finds documents where a specified field's value does not equal the specified value. Neither query operator will match documents where the specified field is not present.Added not-in and != query operators for use with .where() .
not-in finds documents where a specified field’s value is not in a specified array.
!= finds documents where a specified field's value does not equal the specified value. Neither query operator will match documents where the specified field is not present.
The SDK now uses FirestoreError instead of Error in onSnapshot*() error callbacks.
Fixed a bug where CollectionReference.add() called FirestoreDataConverter.toFirestore() twice instead of once. See GitHub issue #3742
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