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NI-DCPower 2026 Q1 Bug Fixes

Created Feb 3, 2026

Overview

The following items are notable issues fixed between the release of NI-DCPower 2025 Q4 and NI-DCPower 2026 Q1, including additional patches and service packs. If you have an issue ID, you can search this list to validate that the issue has been fixed. This is not an exhaustive list of issues fixed in the current version of NI-DCPower.

Bug Number

Legacy ID

Description

Details
3417455, 3443109, 3443215

NI-ModInst .NET publisher policy files redirect to incorrect versions, causing assembly binding failures for .NET applications

Starting with NI-ModInst 2024 Q1, the .NET publisher policy files for NI-ModInst (`NationalInstruments.ModularInstruments.ModularInstrumentsSystem`) redirect to incorrect versions rather than the actual installed versions of the corresponding .NET assemblies.
This causes .NET applications that were built using older versions of this library to fail to load.

Workaround:

Manually update the .NET publisher policy files in "C:\Windows\Microsoft.NET\assembly\GAC_MSIL" to redirect to the actual installed versions of the relevant .NET assemblies in "C:\Windows\Microsoft.NET\assembly\GAC_MSIL".

Reported Version:

NI-DCPower: 2024 Q1 | NI-ModInst: 2025 Q2

Resolved Version:

NI-DCPower: 2026 Q1

Added:

Nov 13, 2025

Additional Patch Information

Installing some patches may require certain additional steps or considerations. Please refer to the following table for more information about patches for this release.

These patches currently do not have any special instructions.

Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).