: Download version 4.0 or the newest Firebird 5.0 (released February 2026) from firebirdsql.org .
You can find the latest and stable releases directly from the official developers or authorized accounting software wikis: sql financial accounting firebird download
: For users of specific suites like SQL Account, the eStream SQL Wiki provides tailored installers for versions like Firebird 3.0.1. : Download version 4