Firebird Project is happy to announce general availability of Firebird 4.0.5 and Firebird 3.0.12 sub-releases.
Please refer to their documentation for the full list of changes. Binary kits for Windows, Linux and Android platforms are immediately available for download:
Firebird 4.0.5: Release notes | Download page
Firebird 3.0.12: Release notes | Download page
It is highly recommended to upgrade your 3.x and 4.x to the latests versions!