Critical Security Update
To help protect your systems, customers using NI driver software 2026 Q2 or earlier should visit ni.com/ni-pal-update and follow the recommended actions.
The following items are notable issues fixed between the release of NI-Digital Pattern Driver 2025 Q4 and NI-Digital Pattern Driver 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-Digital Pattern Driver.
|
Bug Number |
Legacy ID |
Description |
Details |
|---|---|---|---|
| 3463263 |
Shmoo and Digital Scope axis labels sometimes show too many digitsIn certain situations, depending on the axis range and number of steps or divisions, the Shmoo and Digital Scope plot axis labels will show more digits than appropriate.
Workaround: There is currently no known workaround for this issue. |
Reported Version: NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q3 | NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q4 Resolved Version: NI-Digital Pattern Driver and Digital Pattern Editor 2026 Q1 Added: Nov 7, 2025 |
|
| 3417455, 3443109, 3443215 |
NI-TClk .NET publisher policy files redirect to incorrect versions, causing assembly binding failures for .NET applicationsStarting with NI-TClk 2023 Q4, the .NET publisher policy
files for NI-TClk (`NationalInstruments.ModularInstruments.TClock`)
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-Digital Pattern Driver and Digital Pattern Editor 2023 Q4 | NI-TClk 2023 Q4 Resolved Version: NI-Digital Pattern Driver and Digital Pattern Editor 2026 Q1 Added: Nov 13, 2025 |
|
| 3700622 |
When using scan opcodes on an Instrument Group with some instruments having <=16 scan pins, incorrect values for scan pins may be usedWhen executing a pattern when using an Instrument Group, some pins using the scan opcode may generate incorrect data when at least one instrument uses more than 16 pins as scan_in pins or more than 16 pins as scan_out pins, and at least one instrument uses 16 or fewer pins as scan_in pins or 16 or fewer pins as scan_out pins. Workaround: Avoid using Instrument Groups or ensure all instruments in the Instrument Group have either more than 16 scan pins or 16 or fewer scan pins in the pattern.
|
Reported Version: NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q2 | NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q3 | NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q4 Resolved Version: NI-Digital Pattern Driver and Digital Pattern Editor 2026 Q1 Added: Jan 27, 2026 |
|
| 3739502 |
When using the Scan opcode with ungrouped instruments, incorrect pin data may be usedWhen using ungrouped instruments in a multi-card pin map (for example, the 'group' field is blank for all instruments), loading patterns with a scan opcode after loading other patterns may generate incorrect pin data in the scan vectors. Workaround: Load the scan pattern before other patterns.
|
Reported Version: NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q3 Resolved Version: NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q3 Patch 2 Added: Mar 26, 2026 |
|
| 3734444 |
Upgrading NI-Digital Pattern Driver causes self-calibration to fail on some PXIe-6570 and PXIe-6571 instrumentsNI-Digital Pattern Driver 2025 Q3 improved the self-calibration algorithm to allow for lower active load current levels. This introduced a bug which causes some modules to generate faulty self-calibration data. Workaround: Uninstall NI-Digital Pattern Driver and install a version older than 2025 Q3.
|
Reported Version: NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q3 Resolved Version: NI-Digital Pattern Driver and Digital Pattern Editor 2025 Q3 Patch 3 Added: Mar 26, 2026 |
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.
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