### Added
- Add randomized testing to test hundreds of different scenarios #1131
- Add configured http headers to root span #1154
- Add the possibility to freeze a regression in a specific randomized tests scenario #1153
### Changed
- Remove non php7 code from ext/php7 folder #1162
- Remove non php5 code from ext/php5 folder #1164
### Fixed
- Add missing dependency on curl extension for PHP 8 #1144 (Thanks @remicollet!)
- Fix initialization of `curl_multi_init()` for distributed tracing #1159
- Add comment to long running example for method instead of function #1149
- Fix linting + xfail a flaky test #1147
- Update links in README.md to configuration and OT docs #1069
- Fix clang-format installation after circleci image update to buster #1141