SSLproxy 0.9.3
- Implement a generic upgrade mechanism with autossl, without STARTTLS.
- Refactor and improve autossl and split mode.
- Fix watermarking for underlying buffers in autossl.
- Fix macOS header selection, update XNU headers for macOS, and re-enable osx on Travis CI.
- Fix the natengine option passed in proxyspecs on command line.
- Fix enabling of pcap and mirror logging.
- Fix build errors with OpenSSL 3.x.