Apache Solr is an open-source search engine written in Java.

Release Released Security Support Latest
9 2 years ago
(11 May 2022)
Yes 9.6.1
(29 May 2024)
8 5 years ago
(13 Mar 2019)
Yes 8.11.3
(08 Feb 2024)
7 6 years and 9 months ago
(18 Sep 2017)
Ended 2 years ago
(11 May 2022)
7.7.3
(24 Apr 2020)
6 8 years ago
(07 Apr 2016)
Ended 5 years ago
(13 Mar 2019)
6.6.6
(01 Apr 2019)
5 9 years ago
(19 Feb 2015)
Ended 6 years ago
(24 Oct 2017)
5.5.5
(23 Oct 2017)
4 11 years ago
(11 Oct 2012)
No 4.10.4
(03 Mar 2015)
3 13 years ago
(30 Mar 2011)
No 3.6.2
(24 Dec 2012)
1 17 years ago
(22 Dec 2006)
No 1.4.1
(25 Jun 2010)

The previous major version will get occasional critical security fixes. Versions older than that are considered EOL.

No releases are scheduled in advance.

More information is available on the Apache Solr 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:
bin/solr 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/solr.json. See the API Documentation for more information. You can subscribe to the iCalendar feed at /calendar/solr.ics.