### Added
- Target a specific PHP version during install by setting `DD_TRACE_PHP_BIN` #604
- Curl Integration: Add all available information from `curl_getinfo()` as span tags #642
### Changed
- Move dogstatsd client init to rinit #703
### Fixed
- Issues related to limited tracing #689
- Backup and restore last error (related to `error_get_last()` issue) #694
- Handle out-of-sync spans #702
- Sandbox tracer flushing #707
- Enhance OpenTracing StartSpanOptions support #708
- Ensure errors raised in request init hook do not affect `error_get_last()` #709