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@flagsmithdev flagsmithdev released this 10 Dec 17:26
v10.0.0
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10.0.0 (2025-12-10)

⚠ BREAKING CHANGES

  • onError callback behavior change: onError is now properly called when cacheFlags is enabled and the API is unreachable with no existing cache (#365)

    • Previous behavior: init() would resolve successfully even when the API failed, silently swallowing the error
    • New behavior: init() now rejects and triggers onError, matching the behavior when cacheFlags: false
    • Migration: Ensure your code handles errors from init() or provide defaultFlags as a fallback

  • SDK User-Agent header: The SDK now sends a Flagsmith-SDK-User-Agent header with requests (#344)

    • Self-hosted users: Requires Flagsmith v2.196.0 or higher
    • Alternative: If you cannot upgrade, add this environment variable to your Flagsmith server: 
      FLAGSMITH_CORS_EXTRA_ALLOW_HEADERS: Flagsmith-SDK-User-Agent

Features

Bug Fixes

  • onError not called if cacheFlags is true and api is not reachable (#365) (1411b85)

Other

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