Is there any issue with older message archives when upgrading from SM 14.3 to the latest v16?  I have archive files going back to 2012 and as a group they are so large I can't fit them all on the same server.  I typically keep the current year's worth of archive files in the live storage location, and at the end of that year I move that year's set of zip and dat files to deep storage offline.  The thinking being if I ever need them I can restore to the live storage location and search/retrieve as needed (years ago I tested this file-move-return idea and it worked, SM was able to search the moved/returned archive files).

But... if there is a file structure issue that needs to be handled via domain migration, I could be in for trouble.  Any problems foreseen with doing a normal migration (including the current year's archives) and then proceeding as before?