8.39.0-beta.1

Removal of Experimental API

• Remove the deprecated experimental Metrics API (#4406): Learn more

Features

• feat: API to manually start/stop Session Replay (#4414)
• Custom redact modifier for SwiftUI (#4362, #4392)
• Track usage of appHangTrackingV2 (#4445)
• AppHangV2 detection (#4379) Add a new algorithm for detecting app hangs that differentiates between fully blocking and non-fully blocking app hangs. Read more in-depth in our docs.

Fixes

• Edge case for swizzleClassNameExclude (#4405): Skip creating transactions for UIViewControllers ignored for swizzling via the option swizzleClassNameExclude.
• Add TTID/TTFD spans when loadView gets skipped (#4415)
• Finish TTID correctly when viewWillAppear is skipped (#4417)
• Swizzling RootUIViewController if ignored by swizzleClassNameExclude (#4407)
• Data race in SentrySwizzleInfo.originalCalled (#4434)
• Delete old session replay files (#4446)
• Thread running at user-initiated quality-of-service for session replay (#4439)
• Don't create transactions for unused UIViewControllers (#4448)

Improvements

• Serializing profile on a BG Thread (#4377) to avoid potentially slightly blocking the main thread.
• Session Replay performance for SwiftUI (#4419)
• Speed up getBinaryImages (#4435) for finishing transactions and capturing events
• Align SDK dispatch queue names (#4442) to start with io.sentry
• Use UInts in envelope deserialization (#4441)
• Make SentrySDK.replay.start() thread safe (#4455)