Thanks for that.
Last night prior to your response post, I had checked out four of the eight or so retail sites listed on the DD website as sellers of DD products (as PCA Aust and PCA are not shown in that list, perhaps you should get listed there).
One of those sites only sells Vol 1 of the three volumes of the Polish airports.
The others sell all of them. In some cases the version number is given. In others, the release date is given.
In two cases, the version number differed by one or two decimal points from what is shown on the DD website eg showing v3.0 instead of v3.2 for Vol 1 and v3.0 instead of v3.1 for Vol 2.
Overall, it seemed to me that what they are selling are the same versions as or very close to the current versions shown on the DD website.
That got me to wonder what are the mechanics of selling by download. Does the link provided by the retailer connect to a central computer of the developer/publisher so that the most up-to-date version is always the one downloaded or is the retailer's download link to an electronic version supplied at an earlier point in time from the developer/publisher to the retailer, in which case it becomes dated if subsequent changes to the products are not obtained by the retailer and added to that electronic copy? The fact that, for example, SPs are not included in Orbx/FTX downloads and have to be added separately after purchase fueled my uncertainty
If it is the first of those possibilities, then that should indicate that what is out of date is the blurb on the PCA Aust and PCA websites but not what is obtained via the download link.
How does the download system work?
Consistent with what I said in my email of 1 October when I first raised this issue, unless something is listed on the PCA Aust website before next Tuesday which changes my priority/preference (like what happened when the FSDT products came along), I would like to get the Polish airports as part of my purchase quota next week if things can be sorted out.