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OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end. It is widely used by Internet servers, including the majority of HTTPS websites.

Release Released Supported Latest
3.1 2 months and 3 weeks ago
(14 Mar 2023)
Ends in 1 year and 9 months
(14 Mar 2025)
(30 May 2023)
3.0 (LTS) 1 year and 8 months ago
(07 Sep 2021)
Ends in 3 years
(07 Sep 2026)
(30 May 2023)
1.1.1 (LTS) 4 years and 8 months ago
(11 Sep 2018)
Ends in 3 months and 1 week
(11 Sep 2023)
(30 May 2023)
1.1.0 6 years and 9 months ago
(25 Aug 2016)
Ended 3 years and 8 months ago
(11 Sep 2019)
(10 Sep 2019)
1.0.2 (LTS) 8 years ago
(22 Jan 2015)
Ended 3 years and 5 months ago
(31 Dec 2019)
(20 Dec 2019)

It is supported for UNIX-like platforms, Android, Windows, DOS platform with DJGPP, OpenVMS, Perl and Valgrind.

LTS releases will be supported for at least five years, and they will specify one at least every four years. Non-LTS releases will be supported for at least two years.

As of release 3.0.0, the OpenSSL versioning scheme is changing to a more contemporary format: MAJOR.MINOR.PATCH.

With this format, API/ABI compatibility will be guaranteed for the same MAJOR version number. Previously they guaranteed API/ABI compatibility across the same MAJOR.MINOR combination.

  • MAJOR: API/ABI incompatible changes will increase this number
  • MINOR: API/ABI compatible feature releases will change this
  • PATCH: Bug fix releases will increment this number. We also allow backporting of accessor functions in these releases.

More information is available on the OpenSSL website.

You should be running one of the supported release numbers listed above in the rightmost column.

You can check the version that you are currently using by running:
openssl version

You can submit an improvement to this page on GitHub :octocat: . This page has a corresponding Talk Page.

A JSON version of this page is available at /api/openssl.json. See the API Documentation for more information. You can subscribe to the iCalendar feed at /calendar/openssl.ics.