stunnel 5.57 released

[Michał Trojnara]

Dear Users,

I have released version 5.57 of stunnel.

This is a security release.  Make sure to upgrade if you use the "redirect" option.

### Version 5.57, 2020.10.11, urgency: HIGH
* Security bugfixes
  - The "redirect" option was fixed to properly
    handle "verifyChain = yes" (thx to Rob Hoes).
  - OpenSSL DLLs updated to version 1.1.1h.
* New features
  - New securityLevel configuration file option.
  - FIPS support for RHEL-based distributions.
  - Support for modern PostgreSQL clients (thx to Bram Geron).
  - Windows tooltip texts updated to mention "stunnel".
  - TLS 1.3 configuration updated for better compatibility.
* Bugfixes
  - Fixed a transfer() loop bug.
  - Fixed memory leaks on configuration reloading errors.
  - DH/ECDH initialization restored for client sections.
  - Delay startup with systemd until network is online.
  - bin\libssp-0.dll removed when uninstalling.
  - A number of testing framework fixes and improvements.

Home page: https://www.stunnel.org/
Download: https://www.stunnel.org/downloads.html

SHA-256 hashes:

af5ab973dde11807c38735b87bdd87563a47d2fa1c72a07929fcfce80a600fe1  stunnel-5.57.tar.gz
6bcabe757e72a26463b054e7bf14d661b3a6734b4fa60dced491de170008d78c  stunnel-5.57-win64-installer.exe
8bae28d1376a70df69f5d47c41ebb95443934ac6efb058aaa9ae299a391c83e0  stunnel-5.57-android.zip

Best regards,
    Mike


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