Firebird 4.0 introduces new data types and many improvements without radical changes in architecture or operation, the most important are:
- Built-in logical replication;
- Extended length of metadata identifiers (up to 63 characters);
- New INT128 and DECFLOAT data types, longer precision for NUMERIC/DECIMAL data types;
- Support for international time zones;
- Configurable time-outs for connections and statements;
- Pooling of external connections;
- Batch operations in the API;
- Built-in cryptographic functions;
- New ODS (version 13) with new system and monitoring tables;
- Maximum page size increased to 32KB
Sources
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0.tar.xz | 15 MB | Compressed tarball |
Windows 32bit
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0-Win32.exe | 15 MB | Windows executable installer |
| 14th Jul 2025 | Firebird-4.0.6.3221-0-Win32.zip | 21 MB | Zip kit for manual/custom installs |
| 14th Jul 2025 | Firebird-4.0.6.3221-0-Win32-pdb.exe | 29 MB | Windows executable installer |
| 14th Jul 2025 | Firebird-4.0.6.3221-0-Win32-pdb.zip | 46 MB | Zip kit for manual/custom installs |
Windows 64bit
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0-x64.exe | 25 MB | Windows executable installer |
| 14th Jul 2025 | Firebird-4.0.6.3221-0-x64.zip | 23 MB | Zip kit for manual/custom installs |
| 14th Jul 2025 | Firebird-4.0.6.3221-0-x64-pdb.exe | 41 MB | Windows executable installer |
| 14th Jul 2025 | Firebird-4.0.6.3221-0-x64-pdb.zip | 48 MB | Zip kit for manual/custom installs |
Linux 32-bit
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0.i686.tar.gz | 22 MB | Compressed tarball |
| 14th Jul 2025 | Firebird-debuginfo-4.0.6.3221-0.i686.tar.gz | 181 MB | Compressed tarball with debug information |
Linux 64-bit
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0.amd64.tar.gz | 19 MB | Compressed tarball |
| 14th Jul 2025 | Firebird-debuginfo-4.0.6.3221-0.amd64.tar.gz | 184 MB | Compressed tarball with debug information |
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.
Android ARM32
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0.arm.tar.gz | 28 MB | Compressed tarball |
| 14th Jul 2025 | Firebird-withDebugInfo-4.0.6.3221-0.arm.tar.gz | 84 MB | Debug compressed tarball |
Android ARM64
| Date | Filename | Size | Description |
|---|---|---|---|
| 14th Jul 2025 | Firebird-4.0.6.3221-0.arm64.tar.gz | 31 MB | Compressed tarball |
| 14th Jul 2025 | Firebird-withDebugInfo-4.0.6.3221-0.arm64.tar.gz | 84 MB | Debug compressed tarball |