Release notes
This page contains a list of features, changes, known issues and known limitations of the Nerve releases.
Version 3.1.1
| System Component | Version | Build information |
|---|---|---|
| Management System | 3.1.1 | 17/04/2026,c7e8b5c4d51 |
| Node | 3.1.1 | 20260409143007+3-1-1.g64b8103a |
This version was released on April 20, 2026. Unless otherwise stated, all known issues and limitations of the previous version are still valid.
Fixed Issues
- 17042: Fixed an issue where importing Docker volumes resulted in an error.
- 17047: Fixed an issue where the CODESYS license was not recognized after updating to Node version 3.1.0.
- 17052: Fixed an issue where a large number of workloads were not stopped before a node update.
- 17066: Fixed an issue where exporting large Docker volumes resulted in a timeout.
- 17075: Fixed an issue where DNA apply and reapply did not work after a node update to 3.1.0.
- 17074: Fixed an issue where the SSH password was reset after updating to Node version 3.1.0.
- 17132: Resolved an issue in which the character limits for remote connection names were overly restrictive.
Known Issues
- 17131: When workloads are modified on the node and a DNA reapply is triggered, the workloads are not replaced even though the DNA status is reported as applied. In such cases, remove the locally modified workload and redeploy it.
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 (v3.0.8) | Incremental node update | Full support |
|---|---|---|---|---|---|
| 3.1.1 | 2.2.0 | ||||
| 3.1.1 | 2.2.1 | ||||
| 3.1.1 | 2.3.0 | ||||
| 3.1.1 | 2.3.1 | ||||
| 3.1.1 | 2.4.1 | ||||
| 3.1.1 | 2.5.0 | ||||
| 3.1.1 | 2.6.1 | ||||
| 3.1.1 | 2.7.0 | ||||
| 3.1.1 | 2.8.1 | ||||
| 3.1.1 | 2.9.3 | ||||
| 3.1.1 | 2.10.0 | ||||
| 3.1.1 | 3.0.0 | ||||
| 3.1.1 | 3.0.1 | ||||
| 3.1.1 | 3.1.0 | ||||
| 3.1.1 | 3.1.1 |
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, 3.0.1 and 3.1.0 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. |