LabVIEW 2022 Q3 Features and Changes

Released July 2022

Compare VIs within LabVIEW

Compare VIs feature is now available with all editions of LabVIEW 2022 Q3 (Base, Full, and Professional) and not limited to a Professional Edition license.

Python Support

LabVIEW 2022 Q3 supports use of Python Node with Python Object Refnum. Use this type of refnum to pass a python object as return type or input parameter to Python Node.

Changes to Default under Options

In LabVIEW 2022 Q3, the default for Separate compiled code from new files has been changed to ENABLED.

Call MATLAB Function

You can set a breakpoint on the Call MATLAB Function and then use the step into debugging command to open the MATLAB(R) editor and execute your script. If you have multiple versions of MATLAB installed, you can right-click on the function and use Open in MATLAB submenu to specify the version called by LabVIEW.

Uninit method of Actor.lvclass

In the Actor Framework, the Actor class now has a new Uninit method. Actors can override this method to release resources acquired during the execution of Pre Launch Init.vi or Actor.vi. This method always executes even if there is an error returned from the earlier methods.

Support for Drivers/Toolkits Independent of LabVIEW Version

Earlier versions of LabVIEW required add-on content such as toolkits and drivers to be located within the LabVIEW directory. Starting with LabVIEW 2022 Q3 and later, LabVIEW will additionally load such content from a shared location called LVAddons. On Windows, the default location for LVAddons is C:\Program Files\NI\LVAddons. Note that only a subset of NI drivers and toolkits will install into this location with their 2022 Q3 releases. After a driver or toolkit transitions to using the LVAddons location, it will work with the newer versions of LabVIEW without needing to be upgraded or reinstalled.

New Help Experience

In LabVIEW 2022 Q3, help links will direct you to the new online LabVIEW help when the system is connected to the internet. When the system is not connected to the internet, help links will direct you to the new NI Offline Help Viewer that is installed with LabVIEW. Your network connection determines whether LabVIEW uses online or offline help. NI Help Preferences application, however, allows users to always use the offline help viewer.