# 9.3.0
- [changed] Update the console logging URL to troubleshooting page.

# 8.15.0
- Remove the unused code for pre-warm detection.

# 8.14.0
- [fixed] Record the request payload size for POST/PUT requests.

# 8.13.0
- [fixed] Make pre-warming identification more reliable by moving the pre-warm check to the earliest phase of app start.

# 8.12.0
- [fixed] Attempted to fix an issue where app start trace durations are not reliable on iOS 15. App start measurements are now made only for cold app starts (without pre-warming) (#9026).

# 8.10.0
- Fix a crash related to FPRSessionDetails. (#8691)
- Fix heap-buffer overflow when encoding sessions. (#8849)

# 8.8.0
- Create a random number of delay for remote config fetch during app starts.
- Fix log spamming when Firebase Performance is disabled. (#8423, #8577)
- Fix heap-buffer overflow when decoding strings. (#8628)

# 8.6.1
- Fix the case where the event were dropped for missing a critical field in the event.

# 8.6.0
- Add Firebase Performance support for Swift Package Manager. (#6528)
- Fix a crash due to a race condition. (#8485)

# 8.2.0
- Update log messages with proper log levels.
- Fix empty values in `network_info.request_completed_time_us` field from the [data schema](https://firebase.google.com/docs/perf-mon/bigquery-export#detailed_data_schema).
- Fix a crash on FPRSessionDetails. (#8139)

# 8.1.0
- Firebase Performance logs now contain URLs to see the performance data on the Firebase console.

# 7.8.0
- Deprecate Clearcut event transport mechanism.
- Enable dynamic framework support. (#7569)
- Remove the warning to include Firebase Analytics as Perf does not depend on Analytics (#7487)
- Fix the crash on gauge manager due to race condition. (#7535)

# 7.7.0
- Add community supported tvOS.

# 7.6.0
- [fixed] Fixed build warnings introduced with Xcode 12.5. (#7435)

# 7.4.0
- Make FirebasePerformance open source.
- Remove GoogleToolboxForMac and GTMSessionFetcher dependencies.

# 7.3.0
- Add blocklist for GoogleDataTransport upload URLs.
- Update the event transport mechanism to open sourced GoogleDataTransport.

# 7.2.0
- Add Xcode simulator support for new Apple silicon based Macs.

# 7.0.1
- Remove the KVO based measurement of network performance #6734.

# 7.0.0
- Fix issue related to crashes on specific kind of network requests #6713.
- Fixed issue related to race condition on Firebase Remote Config initializaton #6287.
- Update Firebase dependencies to be latest and greatest.

# 3.3.1
- Make the SDK iOS 14 compatible.

# 3.3.0
- Rolled forward previous changes from in-house event log dispatch mechanism to [GoogleDataTransport](https://cocoapods.org/pods/GoogleDataTransport) after fixing client timestamp issue.
- Updated the Logging message for 'Trace' and 'Network Requests' (see [Public Docs](https://firebase.google.com/docs/perf-mon/get-started-ios#step_3_optional_view_log_messages_for_performance_events)).
- Resolved a long standing issue which stopped network request trace from being dispatched on Simulator.

# 3.2.0
- Migrating from Clearcut SDK (internal log dispatch mechanism) to
  [GoogleDataTransport](https://cocoapods.org/pods/GoogleDataTransport) SDK, but
  send events to the same Clearcut Backend.

# 3.1.11
- Integrate with the newer version of Firebase Installations and remove the
  dependency with Firebase InstanceID SDK.

# 3.1.10
- Fix a crash related to fetching cached config values from RC. (#4400, #4399)

# 3.1.9
- Integrate with the newer version of FirebaseInstanceId SDK that uses Firebase
  Installation Service.

# 3.1.8
- Dropped insanely long app start traces
- Fixed monitoring NSURLSession based network requests that were not captured
  starting iOS 13.

# 3.1.7
- Introduce a caching layer for remote config to avoid deadlock when fetching
  configs realtime.

# 3.1.6
- Cleanup the dependencies with Phenotype.

# 3.1.5
- Fixed a crash during app start on iOS 13 devices.
- SDK Enhancements - Move configs to remote config.

# 3.1.4
- Capture app start durations for 12.x versions.

# 3.1.3
- Updates the dependency on Firebase Remote Config.

# 3.1.2
- Fixes issue where NSURLConnection based network requests made from KVO-d
  NSOperation do not complete.
- Fixes issues related to main thread checker.

# 3.1.1
- Fixes an iOS 13 beta crash caused by a race condition with Remote Config.

# 3.1.0
- Adapt FirePerf to work with recent version of Remote Config.
- Fix the bug to honor the dataCollectionEnabled flag.

# 3.0.0
- Remove the deprecated counter APIs.

# 2.2.4
- Crash fixes and code cleanups.

# 2.2.3
- Resolve potential symbol conflicts.

# 2.2.2
- Crash fixes and code cleanups.

# 2.2.1
- Bug fixes and enhancements.

# 2.2.0
- Introduce the feature "Sessions".
- Bug fixes.

# 2.1.2
- Use the newer version of swizzler.

# 2.1.1
- Fix the SDK to reduce the bandwidth consumption for the user.

# 2.1.0
- Fixed few crashes in the SDK.
- Depend on open source version of GoogleUtilities/Swizzler library.
- Added conformance to Firebase global data collection switch.

# 2.0.1
- Fix the crash related to screen traces.
- Improve SDK startup time.
- Fix the crash related to AVAssetDownloadTask.

# 2.0.0
- Exit from beta into GA.
- Automatic screen traces to report on screen rendering performance.
- Added API for setting, incrementing and getting metrics.
- Deprecated the API to increment and decrement counters - please use the new
  metrics API instead.

# 1.1.3
- Fixed a multithreading crash.

# 1.1.2
- Fix the crash related to redirection requests with AFNetworking.
- Other bug fixes.

# 1.1.1
- Bug fixes.

# 1.1.0
- Added API for tagging traces with custom attributes.
- Added API for manually recording network traces.

- Bug fixes.

# 1.0.7
- Network requests made using NSURLConnection are now instrumented.
- Bug fixes.

# 1.0.6
- Infrastructure changes to help diagnose SDK issues more easily.

# 1.0.5
- Symbol collisions with GoogleMobileVision have been addressed.
- The SDK should now not crash if Crittercism is also being used.
- Safety limits enforced on the number of events dispatched over a period of time.

# 1.0.4
- Bug fixes.
- Trace and counter name limits have been set to 100 characters.

# 1.0.3
- Xcode 9 thread sanitizer fixes.

# 1.0.2
- Bug fixes.

# 1.0.1
- Removed dependency on farmhash to prevent symbol collisions.
- The name of the Trace will now be printed if an exception is thrown when
  creating one.

# 1.0.0
- Initial release in Google I/O 2017.