The latest release of each currently-supported product is listed below.
DOWNLOADING INSTALLERS
A Veracity account and a Bladed support agreement are required to download installers - view further information.
ADMIN RIGHTS
Run all Windows installers using the Run as administrator option. Run all Linux installers using sudo.
KNOWN ISSUES LOG
View known issues, bug fixes and new features in different versions of Bladed.
Bladed 4.19
Version: 4.19.0Date: 22 Oct 2026Support type: Release Notes
| Installer | File size | Installation guide |
|---|---|---|
| Windows (32/64-bit) | 910 MB | View |
| Linux (64-bit) | 172 MB | View |
Depth-varying seismic loading
The seismic loading module has undergone a complete redesign to enable depth-varying ground motion for individual foundation nodes. Different seismic acceleration signals can now be applied at different depths and locations within the foundation system, including unique signals for each pile in a jacket structure. This enables more realistic representation of seismic loading and structural response.
The new format is compatible with Sesam .quakeAcc files, allowing seismic acceleration data to be imported directly into Bladed simulations.
The Quake earthquake generator has also been updated to support the new file format for generating seismic input files.
For file formats and modelling requirements, see the seismic loading documentation.
Campbell Diagram and Linearisation upgrades
The Campbell diagram calculation has been updated to:
- Improve mode tracking through coupled-mode splitting and coalescence events
- Include overdamped modes for more consistent Campbell diagram output
- Provide more accurate mode naming and identification, particularly for rotor whirling modes
Other features
Users will also find several minor improvements available in this version:
- Improved foundation reactions analysis accuracy and usability
- Additional superelement workflow outputs to enable correct damping for retracking
Bladed 4.19 is a "long-term support" version of Bladed. This means that it will receive bug fixes for at least 2 years from initial release. Learn more about the Bladed support policy.
Bladed 4.18
Version: 4.18.3Date: 9 Sep 2026Support type: Release Notes
| Installer | File size | Installation guide |
|---|---|---|
| Windows (32/64-bit) | 907 MB | View |
| Linux (64-bit) | 171 MB | View |
Bladed calculations on Windows 64-bit
The calculation code for Bladed (dtbladed.exe) is now available as a Windows 64-bit distribution. This allows the calculation to access more memory, and brings compatibility with other 64-bit tools.
The 64-bit version enables more complex models to be simulated such as linearisation calculations with unsteady aerodynamics, offshore jacket models with many members, and calculation of floating turbine second order hydrodynamic loads with large SEA files.
Furthermore, Bladed can now be used for co-simulation with 64-bit versions of tools like MoorDyn and OrcaFlex.
Campbell Diagram and Linearisation upgrades
The Campbell Diagram and Linearisation calculations have been updated to:
- Achieve ~40% faster Campbell Diagram and Linearisation calculations with smaller output files.
- Calculate Campbell Diagrams at multiple azimuth angles with automatic averaging of A matrices. This allows effects such as gravity to be included in the analysis.
- Calculate coupled mode contributions in the Campbell Diagram using potential and kinetic energy for clearer results interpretation.
Other features
Users will also find several minor improvements available in this version:
Bladed 4.18 is a "long-term support" version of Bladed. This means that it will receive bug fixes for at least 2 years from initial release. Learn more about the Bladed support policy.