### Added
- Add config mode to datadog-setup.php #1951
- Add file hooking to DDTrace\install_hook #1989
- Allow DDTrace\install_hook to take any callable #1991
- Add Laminas integration #1990
- Add php-amqp integration #1996
- Add Laravel Queue integration with Span Links #2026
- Add SQLSRV Integration #2031
- Implement replacing of return values #2018

### Changed
- Allow for consuming an array via DDTrace\consume_distributed_tracing_headers #2010
- Allow DDTrace\install_hook to take any callable #1991
- Do not force cycle collection at runtime on flush by default #2046

### Fixed
- Add fixes for parametric testsuite #1988
- Fix exceptions and errors in auto_prepend_file #1987
- [Yii] Do not use module property if it doesn't exist #1999
- Load API files relative to the ComposerBootstrap.php instead of the ddtrace autoloader #2013
- Avoid side effects from errors within the sandbox #2015
- Prevent execution of install_hook() hooks after disabling tracer #2016
- Fix install_hook on functions returning by-reference #2017
- Fix #2012: Remove PHP 7-only types from signatures #2021 Thanks, @jmakuc, for reporting the issue.
- Ensure internal server errors are set on the root span in Laravel #2026
- Starting multiple traces in parallel does not confuse the limiter #2026
- Fix #2030: Segmentation fault with autoloaders bailing out #2037 Thanks, @NickStallman, for reporting the issue.
- Possible segfault when instrumenting `curl_setopt()` in PHP 7 #2039
- Fix resolving hooks within files declaring many functions on PHP 7.2 - 8.1 #2045

### Internal changes
- Increase the number of configuration entries in zai config #2020
- Reduce the allocated heap size of the elasticsearch7 container #2040

## Profiling

The profiling version number is now in sync with the tracer for stable releases.


### Changed
- Sync profiling version number with tracer #1992
- refactor: move upscaling to `libdatadog` #1984
- perf: raise sampling distance for allocations to 2048 KB #2036

### Fixed
- Fix crashes when allocation sampling occurs in certain places #2039

### Internal changes
- add test to ensure we do not crash with fibers #2003
- add stack walking test #2034

## Application Security Management (0.8.0)
### Fixed
- Amend issue when getting agent host and port DataDog/dd-appsec-php#230
- Flush socket on body limit DataDog/dd-appsec-php#233
- Set appsec disabled when ddtrace is not enabled DataDog/dd-appsec-php#245
- Cap retry to five minutes rc polling DataDog/dd-appsec-php#246
- Avoid updating waf when no updates provided on poll DataDog/dd-appsec-php#250

### Added
- Custom rules support DataDog/dd-appsec-php#235
- Engine update batcher DataDog/dd-appsec-php#248

### Changed
- Refactor capabilities DataDog/dd-appsec-php#227
- Refactor service DataDog/dd-appsec-php#229
- Update ip algorithm DataDog/dd-appsec-php#237
- Handle request-lifecycle atomically DataDog/dd-appsec-php#249
- Update-only engine listener and atomic config handling DataDog/dd-appsec-php#253

### Internal Changes
- Upgrade tracer to 0.85.0 DataDog/dd-appsec-php#226
- Setup python 3.9 for system tests DataDog/dd-appsec-php#228
- Update WAF to 1.9.0, Ruleset to 1.6.0 and Tracer to 0.86.1 DataDog/dd-appsec-php#234
- Disable apache2 restart test on ZTS DataDog/dd-appsec-php#236
- Implement abstract methods of listener on test DataDog/dd-appsec-php#239
- Add test to ensure path parser does not count on /config ending DataDog/dd-appsec-php#240
- Update ruleset to 1.7.0 DataDog/dd-appsec-php#252
- Update html blocked template DataDog/dd-appsec-php#254
- Upgrade WAF to 1.10.0 and add custom_rules capability DataDog/dd-appsec-php#255