I have done a comparison of 1.5 to 1.6 and marked issues that I found. I have marked them as either "Serious issue", "Issue", or "Small issue".
I'm posting an FDF (and the corresponding PDF, although the PDF is actually just the "Final" 1.6 spec).
I have opened another JIRA issue with problems with marking changes from 1.5 to 1.6. I think the distinction between finding an "issue" and finding a bad 1.5-> 1.6 marking is sometimes a fine one, so forgive me if the two different JIRA issues are not cleanly distinguished.
I have not fully completed my comparison of 1.5 and 1.6 (I am probably about 70% done), but I decided it was taking too long so I should post what I have so far.
(Go through the FDF file Carney1.5to1.6_Issues_Part1_JDF Specification 1.6-Final.RP.DMC.fdf and make the changes listed in it.
Most of the comments in the FDF are to be handled through separate issues; in these cases, the issue is listed in the comment.
For comments in the FDF without a separate issue, it is believed that none of those comments require new entries to be made to the 1.6 Errata.
NOTE: There are 4 FDFs attached to this issue, but make sure to use the one mentioned above, which is the final one with Dennis Carney's original comments, Rainer Prosi's responses, and then Dennis Carney's final comments, for example, listing issue numbers he created after discussions with Rainer)