Speaking of NI-DAQ updates/fixes...
Every now and then someone from NI will make a remark in the forums about a DAQ feature that's recently been supported in, say, DAQmx 7.3.1 or something. Frequently, the feature is something that isn't even mentioned in the Readme file associated with that version of NI-DAQ.
The present Readme file seems more like a highlight reel -- not a bad thing, just not complete. I wouldn't ask to expand it but would rather have a separate file that gives a more exhaustive listing of changes & fixes. Or else make it available on the website from the download link page. I'm sure the some such set of requirements must exist for the internal developers...
Specific query re: DAQmx7.4 (can't presently test b/c lacking appropriate hw): is change detection supported for M-series digital input? One of the items mentions "enhanced digital support" but not whether it extends from the high-speed digital boards into the M-series boards.
-Kevin P.
CAUTION! New LabVIEW adopters -- it's too late for me, but you *can* save yourself. The new subscription policy for LabVIEW puts NI's hand in your wallet for the rest of your working life. Are you sure you're *that* dedicated to LabVIEW? (Summary of my reasons in this post, part of a voluminous thread of mostly complaints starting here).