Found the following which has an extensive discussion about the three versions in case anyone is curious. https://www.eurobricks.com/forum/index.php?/forums/topic/89612-lego-set-box-differences-by-region/&do=findComment&comment=1771521
Thank you. Looking at those notes, it appears the inventories will vary slightly for the 2006 version (10152-3) once we add stickers to the database (I'll submit CRs for those shortly) due to the name change from Maersk Sealand to Maersk Line. The only distinction between the -1 and -2 versions appears to be in packaging (they use the same stickers) so I'll suggest some note language to reflect that distinction.
The BL pages have good descriptions explaining the difference. Essentially is mostly due to different packaging when it was re-released over the years. Maersk also has a corporate change which affected the set.
Anyone know the distinction between sets 10152-1, 10152-2 and 10252-3? They contain identical parts and the only difference I can see is in their name but this doesn't seem to be reflected anywhere else. When this set was re-released as 10155, there were at least a few mold changes.