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COMSOL® SOFTWARE VERSION 6.3 UPDATE 1

Released January 23, 2025

The COMSOL® software version 6.3 update 1 (build 6.3.0.335) provides performance and stability improvements to COMSOL Multiphysics®, COMSOL Server™, COMSOL Client for use with COMSOL Server™, and Model Manager Server.

The update applies to COMSOL® software version 6.3 (build 6.3.0.290).

If you have version 6.3 (build 6.3.0.290) and a valid license with a current subscription, you can apply update 1 by performing a full installation of version 6.3 from the Product Download page, which will include all updates.

Terms and Conditions

This update is governed by the COMSOL Software License Agreement that is displayed upon installation of COMSOL Multiphysics® or by the terms and conditions of any other agreement COMSOL may have with your organization. For the latest version of the COMSOL Software License Agreement, including any provisions applicable to this update, see the License Agreements page. By downloading and using this update, you agree to use this update in accordance with the current version of the COMSOL Software License Agreement or with the terms and conditions of any other agreement we may have with your organization.

Note: Update 1 to version 6.3 of the COMSOL® software does not introduce any changes to the COMSOL Software License Agreement.

How to Apply the Software Update

Before proceeding with your installation, make sure that you close and exit any running COMSOL® processes or any software you have running that correlates to a LiveLink™ product you would like to update (Excel®, MATLAB®, Simulink®, or a CAD software program).

Updating COMSOL Multiphysics®

The easiest way to install the update for COMSOL Multiphysics® is to start the program and then select Check for Product Updates. If using the Windows® operating system, this option is located in the File menu under Help. If using the Linux® operating system or macOS, this option is located in the Help menu.

For more information on how to install the update and for offline installation instructions, see the Additional Instructions tab below.

To check that the update installation was successful, first start the COMSOL Multiphysics® software and then select the About COMSOL Multiphysics menu option. If using the Windows® operating system, this option is located in the File menu under Help. If using the Linux® operating system or macOS, this option is located in the Help menu. The listed version should be COMSOL Multiphysics® 6.3 (build 6.3.0.335).

Updating COMSOL Server™

To update COMSOL Server™ if using the Windows® operating system, run the Update program from the COMSOL Launchers folder in the Start menu. Note that the COMSOL Server™ service process needs to be stopped before applying the update.

For more information on how to install the update, installing on other operating systems, and offline installation, see the Additional Instructions tab below.

To check that the installation was successful, first make sure that COMSOL Server™ is running; then, navigate to COMSOL Server™ in a web browser and follow the About COMSOL Server™ link in the lower-right corner. The new version should be COMSOL Server™ 6.3 (build 6.3.0.335).

Updating COMSOL Client for Use with COMSOL Server™

To update COMSOL Client for the Windows® operating system, download the new version from Client Download and install. The previous 6.3 installation will be overwritten. In order to run properly, your installation of COMSOL Client must have the same version number as the COMSOL Server™ installation that you connect to.

Updating Model Manager Server

To update Model Manager Server if using the Windows® operating system, run the Update program from the COMSOL Launchers folder in the Start menu. Note that the Model Manager Server process needs to be stopped before applying the update.

For information on how to install the update, see the Additional Instructions tab below.

To check that the installation was successful, first make sure that Model Manager Server is running; then, navigate to Model Manager Server in a web browser and follow the About link at the bottom of the page. The new version should be COMSOL Model Manager Server 6.3 (Build: 6.3.0.335).

The following instructions apply only if you are not using the method based on the Check for Product Updates menu item, as described above.

Updating COMSOL Multiphysics®

1

Check the Version Number

  1. Start COMSOL Multiphysics®.
  2. Open the About COMSOL Multiphysics dialog box. If using the Windows® operating system, the dialog box can be found in the File menu under Help. If using either the Linux® operating system or macOS, the dialog box can be found under the Help menu.
  3. Check that the version number is 6.3 (build 6.3.0.290). This corresponds to the version that has not yet been updated.
2

Install the Update

Before you proceed with the installation, make sure to exit any running COMSOL Multiphysics® processes or any software you have running that correlates to a LiveLink™ product you would like to update (Excel®, PowerPoint®, MATLAB®, or a CAD software).

  1. Start the COMSOL® software update installer:
    • Windows® operating systems: Run the Update program from the COMSOL Launchers folder in the Start menu, or directly from the COMSOL 6.3 installation folder. The COMSOL Launchers folder can be found in the installation folder, for example, C:\Program Files\COMSOL\COMSOL63\Multiphysics\COMSOL Launchers.
    • Linux® operating systems: Run the update script from the COMSOL 6.3 installation directory, for example, /usr/local/comsol63/multiphysics.
    • macOS: Run the COMSOL Update application from the COMSOL 6.3 installation directory, for example, /Applications/COMSOL63/Multiphysics.
  2. The next step will be taken in the installer program's Options page and depends on whether or not you have a live internet connection or if you plan to download the update file for offline installation:
    • If you have an internet connection: Keep the Direct download setting.
    • If you have an internet connection via a proxy server: Select Download via proxy server and enter your proxy configuration settings.
    • If you do not have an internet connection on the target computer or if you want to apply the update several times on multiple computers: Download the following file to a folder on your computer
      DOWNLOAD UPDATE (2.6 GB)
      In the installer program, select Manual download and click Browse. Navigate to the downloaded file and click Open.
  3. Click Next to get to the Release Notes page for reviewing the update details.
  4. Click Next to get to the Install page and review the software components affected by the update.
  5. In the Install page, click Install to start the installation of the update.
3

Check the Installation

  1. Start COMSOL Multiphysics®.
  2. Open the About COMSOL Multiphysics dialog box. If using the Windows® operating system, this is located in the File menu under Help. If using the Linux® operating system or macOS, this is located in the Help menu.
  3. Check that the version number is 6.3.0.335. (If not, the installation did not succeed.)

Updating COMSOL Server™

1

Check the Version Number

  1. Navigate to the running version of COMSOL Server™ in a web browser.
  2. Click the About COMSOL Server link in the lower-right corner.
  3. Check that the version number is 6.3 (build 6.3.0.290). This corresponds to the version that has not yet been updated.
2

Stop the COMSOL Server™ Processes

Before you proceed with the installation, make sure to stop any running COMSOL Server™ processes.

  1. In Windows®: Stop the server by either typing close, if COMSOL Server™ is running in a command window, or by running the Stop COMSOL Server shortcut from the COMSOL Launchers folder in the start menu, if COMSOL Server™ is installed as a Windows® service.
  2. In Linux®: If you configured COMSOL Server™ using the systemd service, stop it by typing systemctl stop comsolserver63; otherwise, kill the COMSOL Server™ process.
  3. In macOS: Kill the COMSOL Server™ process.
3

Install the Update

Before you proceed with the installation, make sure to stop any running COMSOL Server™ processes, as described above.

  1. Start the COMSOL® software update installer:
    • Windows® operating systems: Run the Update program from the COMSOL Launchers folder in the Start menu, or directly from the COMSOL 6.3 installation folder. The COMSOL Launchers folder can be found in the installation folder, for example, C:\Program Files\COMSOL\COMSOL63\Server\COMSOL Launchers.
    • Linux® operating systems: Run the update script from the COMSOL 6.3 installation directory, for example, /usr/local/comsol63/server.
    • macOS: Run the COMSOL Update application from the COMSOL 6.3 installation directory, for example, /Applications/COMSOL63/Server.
  2. The next step will be taken in the installer program's Options page and depends on whether or not you have a live internet connection or if you plan to download the update file for offline installation:
    • If you have an internet connection: Keep the Direct download setting.
    • If you have an internet connection via a proxy server: Select Download via proxy server and enter your proxy configuration settings.
    • If you do not have an internet connection on the target computer or if you want to apply the update several times on multiple computers: Download the following file to a folder on your computer
      DOWNLOAD UPDATE (2.6 GB)
      In the installer program, select Manual download and click Browse. Navigate to the downloaded file and click Open.
  3. Click Next to get to the Release Notes page for reviewing the update details.
  4. Click Next to get to the Install page and review the software components affected by the update.
  5. In the Install page, click Install to start the installation of the update.
4

Start COMSOL Server™ Again

  • In Windows®: Start COMSOL Server™ by using the COMSOL Server shortcut in the start menu. Alternatively, if COMSOL Server™ was installed as a Windows® service, start it by using the Start COMSOL Server shortcut.
  • In Linux®: If you configured COMSOL Server™ using the systemd service, start it by typing systemctl start comsolserver63; otherwise, type <installation directory>/bin/comsol server to start COMSOL Server™.
  • In macOS: Type <installation directory>/bin/comsol server to start COMSOL Server™.
5

Check the Installation

  1. Navigate to the running version of COMSOL Server™ in a web browser.
  2. Click the About COMSOL Server link in the lower-right corner
  3. Check that the version number is 6.3.0.335. (If not, the installation did not succeed.)

Updating Model Manager Server

1

Check the Version Number

  1. Navigate to the running version of Model Manager server in a web browser.
  2. Click the About link in the center of the footer.
  3. Check that the version number is 6.3 (build 6.3.0.290). This corresponds to the version that has not yet been updated.
2

Stop the Model Manager Server Processes

Before you proceed with the installation, make sure to stop any running Model Manager server processes.

  1. In Windows®: Stop the server by either typing Ctrl+C, if Model Manager server is running in a command window or by running the Stop Model Manager Server shortcut from the COMSOL Launchers folder in the start menu, if Model Manager server is installed as a Windows® service.
  2. In Linux®: If you configured Model Manager server using the systemd service, stop it by typing systemctl stop comsolmodelmanagerserver63; otherwise, kill the Model Manager server process.
  3. In macOS: Kill the Model Manager server process.
3

Install the Update

Before you proceed with the installation, make sure to stop any running Model Manager server processes, as described above.

  1. Start the COMSOL® software update installer:
    • Windows® operating systems: Run the Update program from the COMSOL Launchers folder in the Start menu, or directly from the COMSOL 6.3 installation folder. The COMSOL Launchers folder can be found in the installation folder, for example, C:\Program Files\COMSOL\COMSOL63\ModelManagerServer\COMSOL Launchers.
    • Linux® operating systems: Run the update script from the COMSOL 6.3 installation directory, for example, /usr/local/comsol63/ModelManagerServer.
    • macOS: Run the COMSOL Update application from the COMSOL 6.3 installation directory, for example, /Applications/COMSOL63/ModelManagerServer.
  2. The next step will be taken in the installer program's Options page and depends on whether or not you have a live internet connection or if you plan to download the update file for offline installation:
    • If you have an internet connection: Keep the Direct download setting.
    • If you have an internet connection via a proxy server: Select Download via proxy server and enter your proxy configuration settings.
    • If you do not have an internet connection on the target computer or if you want to apply the update several times on multiple computers: Download the following file to a folder on your computer
      DOWNLOAD UPDATE (212 MB)
      In the installer program, select Manual download and click Browse. Navigate to the downloaded file and click Open.
  3. Click Next to get to the Release Notes page for reviewing the update details.
  4. Click Next to get to the Install page and review the software components affected by the update.
  5. In the Install page, click Install to start the installation of the update.
4

Start Model Manager Server Again

  • In Windows®: Start Start Model Manager server by using the Model Manager Server shortcut in the start menu. Alternatively, if Model Manager server was installed as a Windows® service, start it by using the Start Model Manager Server shortcut.
  • In Linux®: If you configured Model Manager server using the systemd service, start it by typing systemctl start comsolmodelmanagerserver63; otherwise, type <installation directory>/bin/comsol modelmanagerserver to start Model Manager server.
  • In macOS: Type <installation directory>/bin/comsol modelmanagerserver to start Model Manager server.
5

Check the Installation

  1. Navigate to the running version of Model Manager server in a web browser.
  2. Click the About link in the center of the footer.
  3. Check that the version number is 6.3.0.335. (If not, the installation did not succeed.)

Setting up Automated Installation of the Update

If you do not have access to the graphical user interface of your operating system or if you want to automate the update process, you can follow the steps below.

Automated Update of COMSOL Multiphysics®

1

Check the Version Number

  1. Start COMSOL Multiphysics®.
  2. Open the About COMSOL Multiphysics dialog box. If using the Windows® operating system, the dialog box can be found in the File menu under Help. If using either the Linux® operating system or macOS, the dialog box can be found under the Help menu.
  3. Check that the version number is 6.3 (build 6.3.0.290). This corresponds to the version that has not yet been updated.
2

Download the Update File

Click the button below to download the update. In some browsers, such as the Internet Explorer® browser, a dialog box will then open where you can click Save directly after the download has occurred.

DOWNLOAD UPDATE (2.6 GB)

3

Installation

Before you proceed with the installation, make sure you have closed any COMSOL sessions or stopped any running COMSOL processes or any software you have running that correlates to a LiveLink™ product you would like to update (Excel®, MATLAB®, or a CAD software).

Windows® Operating Systems

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = C:\Program Files\COMSOL\COMSOL63\Multiphysics
    installmode = update
    update.filepath = C:\Users\username\Downloads\comsol_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Run cmd. Start the setup program (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: C:\Program Files\COMSOL\COMSOL63\Multiphysics\setup.exe -s C:\Users\username\setupconfig.ini

Linux® Operating Systems

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = /usr/local/comsol63/multiphysics
    installmode = update
    update.filepath = /home/username/Downloads/comsol_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Start the setup script (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: /usr/local/comsol63/multiphysics/setup -s /home/username/setupconfig.ini

macOS

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = /Applications/COMSOL63/Multiphysics
    installmode = update
    update.filepath = /home/username/Downloads/comsol_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Start the setup script (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: /Applications/COMSOL63/Multiphysics/setup -s /home/username/setupconfig.ini

4

Check the Installation

  1. Start COMSOL Multiphysics®.
  2. Open the About COMSOL Multiphysics dialog box. If using the Windows® operating system, this is located in the File menu under Help. If using the Linux® operating system or macOS, this is located in the Help menu.
  3. Check that the version number is 6.3.0.335. (If not, the installation did not succeed.)

Automated Update of COMSOL Server™

1

Check the Version Number

  1. Navigate to the running version of COMSOL Server™ in a web browser.
  2. Click the About COMSOL Server link in the lower-right corner.
  3. Check that the version number is 6.3 (build 6.3.0.290). This corresponds to the version that has not yet been updated.
2

Stop the COMSOL Server™ Processes

Before you proceed with the installation, make sure to stop any running COMSOL Server™ processes.

  1. In Windows®: Stop the server by either typing close, if COMSOL Server™ is running in a command window, or by running the Stop COMSOL Server shortcut from the COMSOL Launchers folder in the start menu, if COMSOL Server™ is installed as a Windows® service.
  2. In Linux®: If you configured COMSOL Server™ using the systemd service, stop it by typing systemctl stop comsolserver63; otherwise, kill the COMSOL Server™ process.
  3. In macOS: Kill the COMSOL Server™ process.
3

Download the Update File

Click the button below to download the update. In some browsers, such as the Internet Explorer® browser, a dialog box will then open where you can click Save directly after the download has occurred.

DOWNLOAD UPDATE (2.6 GB)

4

Installation

Before you proceed with the installation, make sure you have closed any COMSOL sessions or stopped any running COMSOL processes or any software you have running that correlates to a LiveLink™ product you would like to update (Excel®, MATLAB®, or a CAD software).

Windows® Operating Systems

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = C:\Program Files\COMSOL\COMSOL63\Server
    installmode = update
    update.filepath = C:\Users\username\Downloads\comsol_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Run cmd. Start the setup program (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: C:\Program Files\COMSOL\COMSOL63\Server\setup.exe -s C:\Users\username\setupconfig.ini

Linux® Operating Systems

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = /usr/local/comsol63/server
    installmode = update
    update.filepath = /home/username/Downloads/comsol_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Start the setup script (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: /usr/local/comsol63/server/setup -s /home/username/setupconfig.ini

macOS

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = /Applications/COMSOL63/Server
    installmode = update
    update.filepath = /home/username/Downloads/comsol_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Start the setup script (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: /Applications/COMSOL63/Server/setup -s /home/username/setupconfig.ini

5

Start COMSOL Server™ Again

  • In Windows®: Start COMSOL Server™ by using the COMSOL Server shortcut in the start menu. Alternatively, if COMSOL Server™ was installed as a Windows® service, start it by using the Start COMSOL Server shortcut.
  • In Linux®: If you configured COMSOL Server™ using the systemd service, start it by typing systemctl start comsolserver63; otherwise, type <installation directory>/bin/comsol server to start COMSOL Server™.
  • In macOS: Type <installation directory>/bin/comsol server to start COMSOL Server™.
6

Check the Installation

  1. Navigate to the running version of COMSOL Server™ in a web browser.
  2. Click the About COMSOL Server link in the lower-right corner
  3. Check that the version number is 6.3.0.335. (If not, the installation did not succeed.)

Automated Update of the Model Manager Server

1

Check the Version Number

  1. Navigate to the running version of Model Manager server in a web browser.
  2. Click the About link in the center of the footer.
  3. Check that the version number is 6.3 (build 6.3.0.290). This corresponds to the version that has not yet been updated.
2

Stop the Model Manager Server Processes

Before you proceed with the installation, make sure to stop any running Model Manager server processes.

  1. In Windows®: Stop the server by either typing Ctrl+C, if Model Manager server is running in a command window or by running the Stop Model Manager Server shortcut from the COMSOL Launchers folder in the start menu, if Model Manager server is installed as a Windows® service.
  2. In Linux®: If you configured Model Manager server using the systemd service, stop it by typing systemctl stop comsolmodelmanagerserver63; otherwise, kill the Model Manager server process.
  3. In macOS: Kill the Model Manager server process.
3

Download the Update File

Click the button below to download the update. In some browsers, such as the Internet Explorer® browser, a dialog box will then open where you can click Save directly after the download has occurred.

DOWNLOAD UPDATE (212 MB)

4

Installation

Before you proceed with the installation, make sure you have closed any COMSOL sessions or stopped any running COMSOL processes or any software you have running that correlates to a LiveLink™ product you would like to update (Excel®, MATLAB®, or a CAD software).

Windows® Operating Systems

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = C:\Program Files\COMSOL\COMSOL63\ModelManagerServer
    installmode = update
    update.filepath = C:\Users\username\Downloads\comsol_dbserver_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Run cmd. Start the setup program (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: C:\Program Files\COMSOL\COMSOL63\ModelManagerServer\setup.exe -s C:\Users\username\setupconfig.ini

Linux® Operating Systems

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = /usr/local/comsol63/modelmanagerserver
    installmode = update
    update.filepath = /home/username/Downloads/comsol_dbserver_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Start the setup script (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: /usr/local/comsol63/modelmanagerserver/setup -s /home/username/setupconfig.ini

macOS

  1. Create a file named setupconfig.ini in your home directory, or anywhere else you have write permission.

  2. Copy the following lines to setupconfig.ini
    installdir = /Applications/COMSOL63/ModelManagerServer
    installmode = update
    update.filepath = /home/username/Downloads/comsol_dbserver_6.3.0.335_update.dat

  3. Change installdir path to the target COMSOL installation. Change update.filepath to the path where the manual update file is located.

  4. Start the setup script (located in the COMSOL install directory) with the flag -s and the path to your setupconfig.ini file. Example: /Applications/COMSOL63/modelmanagerserver/setup -s /home/username/setupconfig.ini

5

Start Model Manager Server Again

  • In Windows®: Start Model Manager server by using the Model Manager server shortcut in the start menu. Alternatively, if Model Manager server was installed as a Windows® service, start it by using the Start Model Manager server shortcut.
  • In Linux®: If you configured Model Manager server using the systemd service, start it by typing systemctl start comsolmodelmanagerserver63; otherwise, type <installation directory>/bin/comsol modelmanagerserver to start Model Manager server.
  • In macOS: Type <installation directory>/bin/comsol modelmanagerserver to start Model Manager server.
6

Check the Installation

  1. Navigate to the running version of Model Manager server in a web browser.
  2. Click the About link in the center of the footer.
  3. Check that the version number is 6.3.0.335. (If not, the installation did not succeed.)
Linux is a registered trademark of Linus Torvalds in the U.S. and other countries. macOS is a trademark of Apple Inc., registered in the U.S. and other countries. Microsoft, Internet Explorer, Excel, PowerPoint, and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. MATLAB and Simulink are registered trademarks of The MathWorks, Inc.

COMSOL Multiphysics

  • The Chatbot window now supports Azure OpenAI Service functionality.
  • Significant improvements to the Geometry Cleanup functionality and the Merge Faces virtual operation.
  • Fixed an issue that resulted in black text on a black background when editing table cells while using a combination of dark theme in COMSOL Multiphysics® and high-contrast dark theme in Windows®.
  • External functions now produce an error when their names conflict with reserved names.
  • Resolved an issue where COMSOL Multiphysics® would become unresponsive when evaluating a Function Switch containing a function branch that depended on a global or local user-defined function with the same node tag as the branch.
  • For the Moving Mesh and Deformed Geometry interfaces, the expressions defining the mesh displacement in a Prescribed Deformation node are now evaluated directly on boundaries when boundary coordinates are used. This change may yield different results compared to previous versions if the expressions involve variables that are discontinuous between the boundary and adjacent domains. Previously, the boundary displacement was determined by averaging the expressions evaluated in the adjacent domains.
  • To improve performance when using Load Cases, the Parametric solver now uses the Automatic option for the Parameter value run order. If this results in unexpected behavior, it is possible to use the old default value As specified instead.
  • Output-dependent variables for reduced-order models now consistently store the correct values, regardless of the order in which outputs are listed in the model reduction node.
  • For reduced-order models with linear outputs and input feedback, the output bias vector is now correctly computed when the inputs have nonzero training values.
  • Random-vibration operators are now compatible with the boundary flux computation option in the Discretization section of the Settings window for the relevant structural mechanics interfaces. This option becomes available when the Advanced Physics Options setting is enabled.
  • The user interface for the Model Reduction study step has been simplified for the proper orthogonal decomposition (POD) method.
  • The mapping of solution objects with extra data, such as previous solutions and left eigenvectors, has been improved for greater robustness. However, old solution objects may still contain corrupt data and cause internal errors when used. In such cases, it is recommended to recompute the solution.
  • The performance for camera animations has been improved.
  • Fixed a bug that prevented the use of Application Library Update on Linux® with libwebkit2gtk-4.1 or higher, e.g., on Ubuntu® 24.04.
  • The license administration tool lmadmin has been removed from the installation set due to security vulnerabilities.
  • Security, performance, usability, and stability improvements.

Application Builder

  • Resolved an issue where ribbon sections in apps appeared enabled despite being initially disabled.
  • Fixed a bug that could prevent opening compiled model files for Java.
  • Form Editor performance improvement for apps with a large number of forms.
  • Stability improvements.

Model Manager

  • Stability improvements.

Model Manager Server

  • Fixed an issue with launching a Model Manager server on Linux® systems with large page size kernels, such as Ubuntu® arm64+largemem.
  • A Model Manager server now writes an error message on the command line and in the log file if the server fails to start due to an already occupied port.
  • The displayed date in the web interface for a primitive attribute of value type Date no longer depends on the user's local time zone.
  • Stability improvements.

AC/DC Module

  • Stability improvements.

Acoustics Module

  • Stability improvements.

Battery Design Module

  • Stability improvements.

CAD Import Module

  • Added support for importing ACIS® 2025 1.0 and SOLIDWORKS® 2025 files on Windows® and Linux®.
  • Stability improvements.

CFD Module

  • New default solver settings for stationary fluid flow simulations provide substantial solution-time reductions in a majority of cases. The new settings are applied to the solver sequence when a Stationary study or Stationary study step is added, when the solver configurations are reset to their defaults, and to existing stationary studies for which the Solver Configurations node has not been edited.
  • Stability improvements.

Chemical Reaction Engineering Module

  • Warnings from various coupling features are now only shown when the affected equations are solved for.
  • A warning is now shown when mass-transport equations in nonconservative form are coupled with a compressible fluid flow for the Reacting Flow, Diluted Species and Precipitation in Fluid Flow coupling features.
  • Stability improvements.

Composite Materials Module

  • Stability improvements.

Corrosion Module

  • Stability improvements.

Design Module

  • Stability improvements.

ECAD Import Module

  • Stability improvements.

Electric Discharge Module

  • Improved variable definitions for the field electron emission of the Electrode feature in the Electric Discharge interface.
  • Stability improvements.

Electrochemistry Module

  • Stability improvements.

Geomechanics Module

  • Stability improvements.

Heat Transfer Module

  • Stability improvements.

LiveLink™ for Inventor®

  • Stability improvements.

LiveLink™ for MATLAB®

  • Stability improvements.

LiveLink™ for Revit®

  • Stability improvements.

Metal Processing Module

  • Stability improvements.

Nonlinear Structural Materials Module

  • Stability improvements.

Optimization Module

  • Performance improvements for control functions and transient optimizations.
  • Stability improvements.

Pipe Flow Module

  • Stability improvements.

RF Module

  • Stability improvements.

Rotordynamics Module

  • Stability improvements.

Semiconductor Module

  • Fixed a bug where a spurious warning for the WKB Tunneling Model appeared.

Structural Mechanics Module

  • Fixed an out-of-memory error that could occur when a Layered Shell interface and a contact feature are simultaneously present.
  • Fixed an issue with the automatic generation of material tests from the Test Material node when a Solid Mechanics interface or a Material Model subnode uses manual domain selections.
  • Stability improvements.

Uncertainty Quantification Module

  • Stability improvements.

Wave Optics Module

  • Stability improvements.
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