- Update to 5.73:
* Security bugfixes:
- OpenSSL FIPS Provider updated to version 3.0.9.
* Bugfixes:
- Fixed a memory leak while reloading stunnel.conf sections
with "client=yes" and "delay=no".
- Fixed TIMEOUTocsp with values greater than 4.
- Fix the IPv6 test on a non-IPv6 machine.
* Features:
- HELO replaced with EHLO in the post-STARTTLS SMTP protocol
negotiation (thx to Peter Pentchev).
- OCSP stapling fetches moved away from server threads.
- Improved client-side session resumption.
- Added support for the mimalloc allocator.
- Check for protocolHost moved to configuration file processing
for the client-side CONNECT protocol.
- Clarified some confusing OpenSSL's certificate verification
error messages.
- Improved NetBSD compatibility.