| Major Release | Latest Version | Release Date | Release Notes | Get support |
| Firebird 5.0 | 5.0.4 | 17 Apr 2026 | Release Notes 5.0 | Support |
| Firebird 4.0 | 4.0.7 | 17 Apr 2026 | Release Notes 4.0 | Support |
| Firebird 3.0 | 3.0.14 | 17 Apr 2026 | Release Notes 3.0 | Support |
Below are Firebird versions which reached their end-of-life and not maintained by the Firebird Project anymore. Their last official releases continue to be available for download, see the links below.
If you require support for discontinued versions (including migration support), get free (community-backed) or commercial support - see details here.
For version 2.5, consider HQbird - commercial distribution which supports replication for version 2.5, and supports modern Linux versions as well.
| Version Series | Last Published Release | Appeared | Discontinued |
| v2.5 series | Firebird 2.5.9 | 04 Oct 2010 | 24 Jun 2019 |
| v2.1 series | Firebird 2.1.7 | 18 Apr 2008 | 05 Dec 2014 |
| v2.0 series | Firebird 2.0.7 | 12 Nov 2006 | 12 Apr 2012 |
| v1.5 series | Firebird 1.5.6 | 20 Feb 2004 | 08 Oct 2009 |
| v1.0 series | Firebird 1.0.3 | 12 Mar 2002 | 04 Jun 2003 |
Find essential tools (encryption, recovery, reporting, etc) and services (optimization, recovery) in our FirebirdSQL shop. Your purchases directly fund FirebirdSQL’s growth while keeping it freely available.