Sentry

**Features**:

- Rewrote the Linux modulefinder which should now work correctly when encountering gaps in the memory mapping of loaded libraries, and supports libraries loaded from a file offset, such as libraries loaded directly from `.apk` files on Android.
- Invoke the `before_send` hook at time of a hard crash when using the Windows or Linux Crashpad backend.
- Added the following new convenience functions:
- `sentry_value_new_exception`
- `sentry_value_new_thread`
- `sentry_value_new_stacktrace`
- `sentry_event_add_exception`
- `sentry_event_add_thread`
- The `sentry_event_value_add_stacktrace` is deprecated.
- Renamed `sentry_shutdown` to `sentry_close`, though the old function is still available.
- Updated Qt integration to Qt 6.

**Fixes**:

- Optimized and fixed bugs in the JSON parser/serializer.
- Build fixes for PPC and universal macOS.
- Fixes to build using musl libc.
- Correctness fixes around printf and strftime usage.
- Allow building and running on older macOS versions.

**Internal**:

- Update Crashpad and Breakpad submodules to 2021-04-12

**Thank you**:

Features, fixes and improvements in this release have been contributed by:

- [mastertheknife](https://github.com/mastertheknife)
- [torarnv](https://github.com/torarnv)
- [encounter](https://github.com/encounter)

**Features**:

- The unwinder on Android was updated to a newer version.
- Experimental support for the Breakpad backend on Android and iOS.

**Fixes**:

- Fixed some memory leaks on Windows.
- Build System improvements.

**Thank you**:

Features, fixes and improvements in this release have been contributed by:

- [Mixaill](https://github.com/Mixaill)
- [daxpedda](https://github.com/daxpedda)
- [Amphaal](https://github.com/Amphaal)

**Features**:

- Events will automatically get an `os` context with OS version information.
- Added a new `max_breadcrumbs` option.

**Fixes**:

- Fixed some memory leaks related to bounded breadcrumbs.

**Fixes**:

- Restore compatibility with CMake 3.10 (as used in Android NDK Tools)

**Internal**:

- Update Crashpad and Breakpad submodules to 2021-01-25

**Features**:

- The Breakpad backend is now supported on macOS, although the crashpad backend is recommended on that platform.
- Added a new `sentry_reinstall_backend` function which can be used in case a third-party library is overriding the signal/exception handler.
- Add a Qt integration that hooks into Qt logging (opt-in CMake option).
- Expose the sentry-native version via CMake.

**Fixes**:

- Install `.pdb` files correctly.
- Improve macOS runtime version detection.
- Fixed a potential segfault when doing concurrent scope modification.

**Thank you**:

Features, fixes and improvements in this release have been contributed by:

- [Mixaill](https://github.com/Mixaill)
- [eakoli](https://github.com/eakoli)
- [GenuineAster](https://github.com/GenuineAster)
- [daxpedda](https://github.com/daxpedda)
- [torarnv](https://github.com/torarnv)

**Features**:

- The `sentry_get_modules_list` function was made public, which will return a list of loaded libraries that will be sent to sentry with each event.
- A new `sentry_options_set_transport_thread_name` function was added to set an explicit name for sentries http transport thread.

**Fixes**:

- The session duration is now printed in a locale-independent way, avoiding invalid session payloads.
- Correctly clean up locks and pass the Windows Application Verifier.
- Build fixes for MinGW and better documentation for universal MacOS builds.
- Crashes captured by the `crashpad` backend _after_ calling `sentry_shutdown` will now have the full metadata.

**Thank you**:

Features, fixes and improvements in this release have been contributed by:

- [Mixaill](https://github.com/Mixaill)