stunnel 5.51 released

[Michal Trojnara]

Dear Users,

I have released version 5.51 of stunnel.

Version 5.51, 2019.04.04, urgency: MEDIUM
* New features
  - Hexadecimal PSK keys are automatically converted to binary.
  - Session ticket support (requires OpenSSL 1.1.1 or later).
    "connect" address persistence is currently unsupported
    with session tickets.
  - SMTP HELO before authentication (thx to Jacopo Giudici).
  - New "curves" option to control the list of elliptic
    curves in OpenSSL 1.1.0 and later.
  - New "ciphersuites" option to control the list of
    permitted TLS 1.3 ciphersuites.
  - Include file name and line number in OpenSSL errors.
  - Compatibility with the current OpenSSL 3.0.0-dev branch.
  - Better performance with SSL_set_read_ahead()/SSL_pending().
* Bugfixes
  - Fixed PSKsecrets as a global option (thx to Teodor Robas).
  - Fixed a memory allocation bug (thx to matanfih).

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

SHA-256 hashes:
77437cdd1aef1a621824bb3607e966534642fe90c69f4d2279a9da9fa36c3253 
stunnel-5.51.tar.gz
a0e26fde3ba09d6545cfbb44cab06ebd4ddf9c4b536e7d8eb76615ab54b2339c 
stunnel-5.51-win64-installer.exe
ee90bef40cb47617fe7372707dba119f5176cb0fd9eb1bc00cdd1e2c370041db 
stunnel-5.51-android.zip

Best regards,
    Mike