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Looking for the latest Firebird? Go to the Firebird 5.0 download page.
Firebird 4.0 introduces new data types and many improvements without radical changes in architecture or operation, the most important are: logical replication, longer metadata identifiers, international time zone support, timeouts for connections and statements.
Documentation: Release Notes (PDF available), Language Reference (PDF available) and other manuals.
 Win32 |
Win64 |
 Linux x86 |
Linux AMD64 |
 Android ARM32 |
Android ARM64 |
| Release Date | File Name | Size | Description |
| Sources | |||
| April 17, 2026 | Firebird-4.0.7.3271-0.tar.xz | 30 MB | Compressed tarball |
| Win32 |
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| 32-bit Kits | |||
| April 17, 2026 | Firebird-4.0.7.3271-0-Win32.exe | 15 MB | Windows executable installer, recommended for first-time users |
| April 17, 2026 | Firebird-4.0.7.3271-0-Win32.zip | 21 MB | Zip kit for manual/custom installs |
| 32-bit Debug Kits (Binary + PDB components) | |||
| April 17, 2026 | Firebird-4.0.7.3271-0-Win32-pdb.exe | 31 MB | Windows executable installer (debug information included) |
| April 17, 2026 | Firebird-4.0.7.3271-0-Win32-pdb.zip | 55 MB | Zip kit for manual/custom installs (debug information included) |
| Win64 |
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| 64-bit Kits | |||
| April 17, 2026 | Firebird-4.0.7.3271-0-x64.exe | 25 MB | Windows executable installer, recommended for first-time users |
| April 17, 2026 | Firebird-4.0.7.3271-0-x64.zip | 23 MB | Zip kit for manual/custom installs |
| 64-bit Debug Kits (Binary + PDB components) | |||
| April 17, 2026 | Firebird-4.0.7.3271-0-x64-pdb.exe | 44 MB | Windows executable installer (debug information included) |
| April 17, 2026 | Firebird-4.0.7.3271-0-x64-pdb.zip | 58 MB | Zip kit for manual/custom installs (debug information included) |
| Linux x86 |
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| 32-bit Kits | |||
| April 17, 2026 | Firebird-4.0.7.3271-0.i686.tar.gz | 22 MB | Compressed tarball |
| April 17, 2026 | Firebird-debuginfo-4.0.7.3271-0.i686.tar.gz | 183 MB | Debug build, compressed tarball |
| Linux AMD64 |
|||
| 64-bit Kits | |||
| April 17, 2026 | Firebird-4.0.7.3271-0.amd64.tar.gz | 20 MB | Compressed tarball |
| April 17, 2026 | Firebird-debuginfo-4.0.7.3271-0.amd64.tar.gz | 186 MB | Debug build, compressed tarball |
| IMPORTANT! Android builds were not thoroughly tested, therefore they should be treated as experimental. Please report any problems you experience to the development mailing list. |
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| Android ARM32 |
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| 32-bit Kits | |||
| April 17, 2026 | Firebird-4.0.7.3271-0.arm.tar.gz | 28 MB | Compressed tarball |
| April 17, 2026 | Firebird-withDebugInfo-4.0.7.3271-0.arm.tar.gz | 85 MB | Debug build, compressed tarball |
| Android ARM64 |
|||
| 64-bit Kits | |||
| April 17, 2026 | Firebird-4.0.7.3271-0.arm64.tar.gz | 31 MB | Compressed tarball |
| April 17, 2026 | Firebird-withDebugInfo-4.0.7.3271-0.arm64.tar.gz | 85 MB | Debug build, compressed tarball |