Hi Kirk
Thanks for the response. I'll sort things out using exif tool. I am not afraid of perl and scripts, so I don't expect to have any issues.
I would be interested to learn if PM5 also has this issue. So far, PM4.6 continues to meet my needs but I will upgrade if needed and certainly will the instant the cataloging module is introduced.
Let me draw your attention to another, somewhat similar issue (I believe). It seems that the command "Tools / IPTC/XMP / Read IPTC/XMP from RAW" does not update any exif data -- which is fine, in that it doesn't promise to. That is why, I assume, that that command does not update the jpeg time and date as I noted in my first post. However, it also does not update the gps data. That can lead to a bit of a "gotcha":
If I ingest a set of cr2 files, use DPP to develop a paired set of of jegs, add my metadata and then use the command "File / import gps coordinates", everything works as expected. However, if I change the order and ingest a set of cr2 files, add my meta data, import my gps coordinates, use DPP to develop a paired set of jpegs, and then use the command "Tools / IPTC/XMP / Read IPTC/XMP from RAW" to write my meta data to the jpegs, then my jpegs will not include the gps coordinates. But I will never notice this in PM unless I separate the jpeg from its associated cr2 file. In retrospect, I think I understand what is happening, but I don't think this is the "expected" behaviour.
(Note, in the above scenario, I don't have any time and date issues with the jpegs because the DPP produced jpegs include the capture time.)