Notes de version
Updated: May 28, 2026
| Applies to version: 8.1
The following sections list the release notes for publicly released versions of Altium On-Prem Enterprise Server 8.1.
Version 8.1.1
Build: 76 Date: 29 May 2026
New in Altium On-Prem Enterprise Server
| 43771 | Introduced support for Windows Server 2025. |
| 45617 | Introduced support for PLM Initialization of a project from a multi-variant project template to reserve PLM ID numbers for each variant without the need to Release and Publish the project. |
| 49360 | Fixed an issue when installation failed if https binding in IIS has no correct certificate applied. A certificate selected in the Wizard or a self-signed certificate will be used for that binding. |
| 49536 | Added several improvements to the Altium On-Prem Enterprise Server Setup wizard. |
| 50547 | Improved visibility of incorrectly configured WebsiteDomain and Server settings in LocalVault.ini file. |
| 51074 | The Java runtime path is no longer passed when the Enterprise Server executes Teamcenter EDA client. You need to make sure that JAVA_HOME or TCEDA_JAVA_HOME is set to the correct Java runtime. |
| 51137 | Introduced support for the OAuth Provider’s audience parameter to enable including the aud claim in the issued token when setting up an SSO authorization for connection to a PLM system. |
| 51389 | A new 'Teamcenter EDA' region was added to the Admin - Settings - PLM Integration page. It contains settings for 'libraryName' and 'applicationName' that must match the configuration of the Teamcenter server. The new options are only visible when a Teamcenter PLM Addon license is added to the Enterprise Server. The old way of configuring these options through LocalVault.ini remains supported. |
| 51645 | Added several localization improvements. |
| 51709 | Fixed an issue preventing opening the 'My Profile' form when in the Admin section. |
| 54638 | Fixed an atom leak. |
| 54644 | ARK stability has been improved for setups with single ARK executor and setups with multiple parallel ARK executors have been made fully supported and reliable. |
| 55493 | A public link to the Advanced Topic documentation has been added to LocalVault.ini to help administrators to change settings related to the server address / hostname / port in accordance with system requirements. |
| 55784 | Fixed an issue in the Project page where it was not possible to sort projects by the Description field. |
| 56503 | User Agent reporting has been improved for inter-service communication in IIS logs. |
| 56617 | The Firebird database version has been upgraded to 3.0.13. |
| 56629 | An optimal Firebird configuration is now applied during installation. |
| 56753 | Introduced support for using Entra ID with non-email usernames when configuring SSO via OIDC/OAuth. |
| 56796 | Added a missing attribute to the edalib.xml file for support of part choices in Teamcenter 2406 and later versions. |
| 57147 | Fixed an issue causing the 'Something is wrong. Please try again in a few minutes...' message to appear when opening the Component view. |
| 57531 | Fixed a login error when the login page stayed open for more than 30 minutes. |
| 57581 | ElasticSearch has been patched by upgrading file log4j-slf4j-impl-2.11.1.jar to log4j-slf4j-impl-2.17.1.jar. |
| 57791 | The Part catalog AppPool is now 64-bit, and the OleDb provider now works correctly as a custom part source. |
| 58062 | Email notifications are no longer sent when project access permissions are removed. |
| 58145 | Prevented the browser from caching old versions of source files causing various issues for users of the browser interface after Enterprise Server upgrades. |
| 58506 | Significantly reduced (by approximately 1 GB) the size of the Enterprise Server installation executable. |
| 58507 | Most web services have been switched to 64-bit. |
| 59446 | Fixed an issue when multiple services could fail on startup during Enterprise Server installation with the error "The process cannot access the file 'C:\...\LocalVault.ini' because it is being used by another process" and block index rebuild. |
| 60176 | Improved performance of the avBackup tool. |
| 60177 | IIS compression modules are now being installed with the Enterprise Server. |
| 60244 | Fixed an issue where project release source could not be retrieved for projects with a large number of commits (Firebird error -901). |
| 60496 | Fixed an issue that affected Windchill integration when using SSO authentication in some setups. |
| 60846 | Database cleanup and trimming is now performed during the Enterprise Server update to increase database performance. When using the command line to update the Enterprise Server, the compacting step can be skipped by using the SkipDbCompact parameter. |
| 60863 | Fixed an issue preventing access to the Installation page of the browser interface. |
| 60890 | When testing the SSO connection, the confirmation message now displays the resulting user name. |
| 60959 | Fixed an issue that prevented saving changes in comment notification settings in the Web Viewer. |
| 61134 | Fixed errors reported in the browser console. |
| 61147 | Fixed an issue preventing import packages in Admin – Installations – Server Storage. |
| 61449 | Added the ability to change the SAML Entity ID to resolve the ambiguity between cloned instances. |
| 61455 | Fixed an issue with infinite project-component link count growth for large projects with missing components. |
| 61528 | Fixed an issue causing 'invalid URI scheme' being reported in logs and slowing down the Web Viewer. |
| 61604 | Fixed an issue where the Vault service did not delete item revision link parameters on item revision link removal. |
| 61905 | Added significant security and platform stability improvements. |
| 62002 | Increased performance of and decreased load on the server during LDAP synchronization. As a result, fixed an issue where users were not being added during LDAP synchronizations. |
| 62450 | Bundled runtimes have been upgraded to .NET 8.0.27 and .NET 10.0.8. |
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