# Firebase Android App Check minSdk 23 release notes

Status: search-observed
Product: Firebase Android
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/firebase-android-app-check-minsdk-23-release-notes
Machine JSON: https://gitdocs.org/api/fixes/firebase-android-app-check-minsdk-23-release-notes.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

The source can compile on the developer's newer device while the SDK's newly raised deployment/minSdk target fails older build or runtime matrices.

## Fix

```
Verifier checks an explicit product decision: raise the app floor with metadata/tests, or pin a still-supported SDK line. Check the resolved dependency graph and runtime behavior on the declared minimum platform.
```

## Avoid

- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.

## Observed Codex Queries

- Firebase Android App Check minSdk 23 release notes
- site:firebase.google.com Android App Check minSdkVersion 23 Firebase
- Firebase App Check Android minSdkVersion 23

## Sources

- Firebase Android SDK release notes / BoM 34: https://firebase.google.com/support/release-notes/android