What's Changed
- chore: drop php 7.1 support by @simPod in #226
- Allow psr/http-message v2 by @nicolas-grekas in #234
- Use zval storage for Stream instances created from strings by @nicolas-grekas in #230
- Improve performance of creating streams from strings by @nicolas-grekas in #241
- Update changelog by @nicolas-grekas in #240
Full Changelog: 1.6.1...1.7.0