Native (C/C++) SDK Releases — June 2026

content/changelog/2026-06-native-sdk-releases.md

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+---
+title: Native (C/C++) SDK Releases — June 2026
+slug: 2026-06-native-sdk-releases
+summary: In-process app-hang detection, async crash upload, improved multi-platform symbolication, and raised module limit.
+categories:
+  - SDK
+platform:
+  - native
+broadcastCategory: sdk_update
+published: false
+date: 2026-06-30
+author: rahulchhabria@sentry.io
+---
+
+Releases covered:
+
+| Version | Date | Link |
+|---------|------|------|
+| 0.15.2 | 2026-06-23 | [Release notes](https://github.com/getsentry/sentry-native/releases/tag/0.15.2) |
+| 0.15.1 | 2026-06-18 | [Release notes](https://github.com/getsentry/sentry-native/releases/tag/0.15.1) |
+| 0.15.0 | 2026-06-11 | [Release notes](https://github.com/getsentry/sentry-native/releases/tag/0.15.0) |
+
+## TL;DR
+
+- New in-process app-hang monitor via `sentry_options_set_enable_app_hang_tracking` + `sentry_app_hang_heartbeat()`.
+- Opt-in async crash upload lets the app exit immediately after capture; a daemon finishes the upload in the background.
+- Improved symbolication on Linux (ELF), macOS (full thread stacks), and for Windows/Crashpad multi-module apps.
+- `SENTRY_CRASH_MAX_MODULES` raised from 512 to 2048.
+- Fixed partial disk writes for streamed envelopes; Android breadcrumb `data` now sent as structured object.
+
+## Release notes
+
+### Breaking Changes
+
+0.15.0 changes two function signatures. `sentry_value_incref` now returns `sentry_value_t` (the value itself, enabling chaining), and `sentry_value_decref` now returns `int` (0 if the value was freed, non-zero otherwise). Callers that previously ignored the return values are unaffected; callers that assigned the result of `sentry_value_decref` to a variable need to update their type declarations.
+
+### New Features
+
+0.15.2 introduces an in-process app-hang monitor. Enable it via `sentry_options_set_enable_app_hang_tracking`. A background thread then watches for periodic calls to `sentry_app_hang_heartbeat()` from the thread you want monitored; if no heartbeat arrives within `app_hang_timeout` milliseconds (default 5000), it captures an app-hang event including a stack trace.
+
+0.15.0 adds an opt-in async crash upload mode. When active, the crashed process exits immediately after the crash data is written to disk, and the `sentry-native` crash daemon picks up and uploads the report in the background. This is useful when post-crash upload latency — which can be significant for large apps — is unacceptable. A `transfer_timeout` option for SDK-managed HTTP transports is also new in this release.
+
+Symbolication improved substantially. On Linux, the crash daemon now symbolicates stack frames from on-disk ELF symbol tables, so the crashing thread's frames are resolved without ptrace. On macOS, crash reports now include full stack traces for all threads — previously non-crashing threads showed only a single frame — and macOS and Linux builds now include thread names. 0.15.2 fixes symbol resolution for crashes in multi-module applications on both the Windows inproc backend and Crashpad.
+
+`SENTRY_CRASH_MAX_MODULES` has been raised from 512 to 2048 in 0.15.0. Processes that load many shared libraries could previously have their minidump module list silently truncated, leaving frames without a `debug_id` and making them unsymbolicatable in Sentry.
+
+### Bug Fixes
+
+0.15.1 fixes the SDK silently treating partial disk writes during streamed envelope persistence as success. Partial writes are now detected and reported as failures. Also in 0.15.1, Android breadcrumb `data` was serialised and sent as a raw JSON string rather than a structured object; it is now sent correctly.
+
+0.15.0 fixes the macOS `image_size` field in crash minidumps, which was computed incorrectly and could cause the symbolicator to attribute every frame to the lowest-addressed image — typically `dyld` or `libsystem`. Active traces are now also finished at crash time so the trace context is attached to the crash event.