The Altair documentation portal located at help.altair.com and
https://support.altair.com/csm?id=altair_product_documentation
is currently being sunset as part of the transition to Siemens Support Center.
After the sunset, Altair product documentation for versions 2026.1 and later will be available exclusively through Siemens Support Center at https://support.sw.siemens.com. This move consolidates Altair documentation with Siemens Digital Industries Software resources, including product downloads, the knowledge base, and support cases.
Note that only the landing page itself is being sunset. Legacy product documentation for versions 2026 and prior will remain available on help.altair.com and accessible through Altair Marketplace or directly from the product. The transition began on September 14th and will be completed by the end of September 2026.
What do I need to do?
Please note that log-in credentials and appropriate entitlements are required to view documentation on both Siemens Support Center and Altair Marketplace. F1 help and other direct documentation links that were publicly available previously will continue to work without requiring a login.
If you have any issues, please create a support ticket in the Siemens DISW Customer Center.
Thank you for your continued partnership as we complete this transition to Siemens Support Center.
