Release notes
This page contains a list of features, changes, known issues and known limitations of the Nerve releases.
Version 3.0.1
This version was released on September 26, 2025. Unless otherwise stated, all known issues and limitations of the previous version are still valid.
Improvements
- Added support for Secure Boot and Disk Encryption on Siemens Simatic BX39.
Bug fixes
- Fixed an issue where installation of a node image in version 3.0.0 on an unused disk would fail.
- Fixed an issue where configuring an external port via the LocalUI was not working as expected.
- Resolved an issue that caused elevated jitter values in the CODESYS application and timing accuracy.
- Fixed an issue where modified network settings were reset after a node update and anode reboot.
Known issues and limitations
- In rare cases, the scroll area for remote connections of a node in the Management System may be displayed with an incorrect size.
- User passwords from previous Nerve versions might not be accepted after an upgrade. As a workaround, resetting the password resolves the issue.
Compatibility matrix
Refer to the table below for information on the compatibility between different components of the Nerve system with the current version of the Management System.
| Management System version | Node version | MS/node compatibility | Nerve Connection Manager (v2.0.3 ) | Nerve Connection Manager (v3.0.3 ) | Incremental node update | Full support |
|---|---|---|---|---|---|---|
| 3.0.1 | 2.2.0 | |||||
| 3.0.1 | 2.2.1 | |||||
| 3.0.1 | 2.3.0 | |||||
| 3.0.1 | 2.3.1 | |||||
| 3.0.1 | 2.4.1 | |||||
| 3.0.1 | 2.5.0 | |||||
| 3.0.1 | 2.6.1 | |||||
| 3.0.1 | 2.7.0 | |||||
| 3.0.1 | 2.8.1 | |||||
| 3.0.1 | 2.9.0 | |||||
| 3.0.1 | 2.9.1 | |||||
| 3.0.1 | 2.9.2 | |||||
| 3.0.1 | 2.9.3 | |||||
| 3.0.1 | 2.10.0 | |||||
| 3.0.1 | 3.0.0 | |||||
| 3.0.1 | 3.0.1 |
Note
Update from Nerve Node 2.7.0 to Nerve Node 2.9.0, 2.9.1, 2.9.2 and 2.9.3 is supported.
Update from Nerve Node 2.10 to Nerve Node 3.0.0 and 3.0.1 is not supported.
For more information on technical limitations (), and requesting assistance with setting up older versions in the current version (), contact a sales representative or write an issue through the TTTech Industrial support portal.
Scaling and performance limitations
This release has been tested to perform within the following scaling boundaries:
| Maximum number of concurrent devices | 200 |
| Maximum number of concurrently logged in users | 5 |
| Maximum workload size | 50 GB |
| Maximum number of concurrent remote access sessions | 3 |
| Maximum number of workloads in workload repository | 200 |
| Maximum data upload per node | 5 datagrams per second with at least 10 sensor values for 200 nodes in parallel. |