This release adds timeline support to the profiler. This is off by default. Enable it with the environment variable DD_PROFILING_EXPERIMENTAL_TIMELINE_ENABLED=1 or INI setting datadog.profiling.experimental_timeline_enabled=1.

### Added
- Add horizon as artisan queue command #2124 Thanks, @markwalet.
- Add network destination name to http client spans #2134
- Add automated Laravel user tracking events #2100
- Add DD_HTTP_SERVER_ROUTE_BASED_NAMING config to enforce <method> <path> resources #2138

### Fixed
- Fix a memory leak when overriding default arguments in install_hook (PHP7.2-) #2107
- Generate runtime-id on first request #2137
- Better GC workaround on PHP 7.3 and below for cycle collected span stacks #2123
- Use proper variable for php-config #2114
- Generate runtime-id on first request #2137

### Internal Changes
- Add note about cargo in README, make debug symbols included by default for manual compilation #2110


## Profiling
### Added
- Add timeline support #1997, #2108
- Add endpoint counts #2111
- Add file compilation times to timeline #2119

### Internal changes
- ci: add stack walking benchmark #2041, #2133, #2136
- ??build: bump indexmap to v2.0.0 #2127
- build: bump bindgen to 0.66.1 #2128


## Application Security Management (0.10.0)

#### Added
- Add automated user login events DataDog/dd-appsec-php#272
- Add sign up event DataDog/dd-appsec-php#275

#### Fixed
- Persist top-most root span from RINIT DataDog/dd-appsec-php#273

#### Internal Changes
- Rename system-test scenario DataDog/dd-appsec-php#271
- Support multiple traces and spans but provide only the root span on integration tests DataDog/dd-appsec-php#274
- Set libddwaf as git `safe.directory` on `build package` step DataDog/dd-appsec-php#276