---
title: "Firebase AI Logic in JavaScript SDK 13.0.0 removes previously deprecated APIs: 2026-10-07 | Harbyn"
description: "Firebase AI Logic in JavaScript SDK 13.0.0 removes previously deprecated APIs, announced Oct 7, 2026; replacement: AI.backend.location, sendTextRealtime, sendAudioRealtime."
canonical: "https://harbyn.com/changes/firebase/2026-10-07-deprecated-apis-removed"
last-updated: 2026-10-07
---

# Firebase AI Logic in JavaScript SDK 13.0.0 removes previously deprecated APIs

Markdown version of <https://harbyn.com/changes/firebase/2026-10-07-deprecated-apis-removed>.

Breaking change - Firebase. medium severity. In effect.

Firebase JavaScript SDK 13.0.0 removes AI.location (use AI.backend.location), LiveSession.sendMediaChunks() and sendMediaStream() (use sendTextRealtime(), sendAudioRealtime(), sendVideoRealtime()), LanguageModelCreateCoreOptions.topK and .temperature, GoogleMaps.enableWidget, GroundingMetadata.retrievalQueries (use groundingSupports) and CountTokensResponse.totalBillableCharacters (use totalTokens).

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Firebase](https://harbyn.com/vendors/firebase.md) |
| Kind | Breaking change |
| Severity | medium |
| Status | In effect |
| Announced | Oct 7, 2026 |
| Added to Harbyn | Oct 7, 2026 |
| Lead time | No dated deadline |
| Symbols | `AI.location`, `LiveSession.sendMediaChunks`, `LiveSession.sendMediaStream`, `LanguageModelCreateCoreOptions.topK`, `LanguageModelCreateCoreOptions.temperature`, `GoogleMaps.enableWidget`, `GroundingMetadata.retrievalQueries`, `CountTokensResponse.totalBillableCharacters` |
| Replacement | `AI.backend.location`, `sendTextRealtime`, `sendAudioRealtime`, `sendVideoRealtime`, `groundingSupports`, `totalTokens` |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Firebase, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://firebase.google.com/support/release-notes/js> (changelog, fetched 2026-10-07 23:09 UTC, sha256 `2407d40b1d1bbfdc5572e4c5640df949d51c50d74ee44b8e35cafa4951fb13c5`)

## Related changes

### More from Firebase

- [AI Logic in JavaScript SDK 13.0.0 exports ChatSession as an interface, not a class](https://harbyn.com/changes/firebase/2026-10-07-chatsession-class-replaced-by-interface.md) (Breaking change, announced Oct 7, 2026)
- [AI Logic in JavaScript SDK 13.0.0 makes gemini-3.5-flash-lite the default hybrid in-cloud model](https://harbyn.com/changes/firebase/2026-10-07-default-hybrid-in-cloud-model-changed.md) (Behavior change, announced Oct 7, 2026)
- [Remote Config in JavaScript SDK 13.0.0 stops false CONFIG\_UPDATE\_STREAM\_ERROR events on backgrounding](https://harbyn.com/changes/firebase/2026-10-07-expected-background-connection-closes-handled-differently.md) (Behavior change, announced Oct 7, 2026)
- [firebase 13.0.0, a new major version](https://harbyn.com/changes/firebase/2026-10-07-firebase-13-0-0.md) (Breaking change, announced Oct 7, 2026)

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- [Supabase: four CBC-mode TLS 1.2 cipher suites will be removed from project HTTP APIs](https://harbyn.com/changes/supabase/2026-10-12-an-outdated-subset-of-tls-1-2-ciphers-will-be-disabled-on-project-http-apis.md) (effective Nov 10, 2026)
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- [Bitbucket Cloud API: Git Credential Manager upgrade required for OAuth 2.0 Git authentication](https://harbyn.com/changes/bitbucket/2026-10-13-git-credential-manager-upgrade-required-for-oauth-2-0-git-authentication.md) (effective Nov 30, 2026)

[All upcoming deadlines](https://harbyn.com/deadlines.md)