chore: Release 5.3.0

[onesignal-deploy]

Channels: Current

🎉 Custom Events Support
This release introduces Custom Events support for the dotnet sdk.

Please see documentation on Custom Events.

🚀 New Features

• feat: add custom events support (feat: add custom events support #153)

🛠️ Native Dependency Updates

• Update Android SDK from 5.1.37 to 5.6.1
  • fix: custom events now handle null object within the event properties (#2537)

  ---

  • feat: 🎉 introduces Custom Events Support for the Android SDK. To get started with using Custom Events, please contact support@onesignal.com to enable this feature for your app. Please see documentation on Custom Events.
  • feat: IAMs now display when triggers added before first fetch (#2528)
  • fix: end initialization early if device storage is locked (#2520)

  ---

  • feature: Exposing accessors thru suspend (#2502)
  • fix: a rare NPE from PermissionViewModel introduced in 5.4.0 (#2504)
  • fix: NPE in SyncJobService since 5.4 (#2500)
  • fix: Rare User and Subscription creates and updates processing out of order (introduced in 5.4.0) (#2419)
  • fix: Remove throwing "initWithContext was not called or timed out", introduced in 5.4.0 (#2408)
  • Improvement: failure message shows that appID is missing (#2506)
  • improvement: Offloaded work on background threads. (#2394)

  ---

  • feat: Enable docs (#2507)
  • bug: catch exception if opening a notification fails (#2508)
  • fix: IAM with NOT_EQUAL_TO trigger always shows up (#2509)
  • fix: NPE when setting timezone on app focus (#2505)
  • fix: send receive receipt even when preventDefault is called (#2512)
  • chore: Kotlin 1.9 update (#2403)
  • chore: Bump firebase-messaging to 24.0.0 (#2149)

  ---

• Update iOS SDK from 5.2.14 to 5.4.1
  • fix: warning about OSMacros.h in header (OneSignal-iOS-SDK#1642)
  • fix(iam): prevent crash when dismissing IAM during view hierarchy changes (OneSignal-iOS-SDK#1641)
  • feat: IAMs now display when triggers added before first fetch (OneSignal-iOS-SDK#1635)
  • fix: use locale-independent formatting for purchase prices (OneSignal-iOS-SDK#1634)
  • Feat: live activities click events (OneSignal-iOS-SDK#1593)
  • fix: Retry IAM fetch when OneSignal ID becomes available (OneSignal-iOS-SDK#1626)
  • fix: NotEqualTo trigger no longer matches non-existent properties (OneSignal-iOS-SDK#1625)
  • fix: Remove exposing var and let macros (OneSignal-iOS-SDK#1622)
  • fix: forward declarations for Objective-C++ compatibility (OneSignal-iOS-SDK#1621)
  • Add confirmed deliveries for live activities notifications for OneSignal-aware activities (Feat: live activities receive receipts OneSignal-iOS-SDK#1592)
  • New Log Listener methods to allow an app developer to capture logs as strings at runtime. The log listener is independent of logLevel, all message are always sent to listeners. Please see linked PR for example usage (feat(logging): add public log listener methods OneSignal-iOS-SDK#1580)
  • Prevent extra server calls to send duplicate live activity requests (fix: live activities uncaches correctly OneSignal-iOS-SDK#1589)
  • Fix an NSInvalidArgumentException that happens on rare occasions when localized description is not copied properly (Fix: Prevent exception when copying an error's localizedDescription OneSignal-iOS-SDK#1594)

[claude]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.