Within the Official ROM Download Links, posted by yourselves (@Blackview Admin) would it be possible to add some extra information to each ROM release, 

• Some kind of ROM identification that you may find in Update area of the handset, E.g. The ROM is 20170612_194708,
• The date of release for each ROM 
• An indication of if each ROM release is suitable for the BV7000 shipped with Android 6 or to the BV7000 shipped with Android 7 or if they are suitable for both. 

Just this extra info would help take the guessing away, and when (and if) there is another ROM release would help both old and new BV7000 owners who seek to upgrade the firmware of the handsets.
 

Hi there! You are asking for something wich already exists.

1) Each ROM already has an id number, i.e. 20170612_194708

2) ...which also contains the release date, i.e. 20170612_194708 (2017 is the year, 06 is the month, 12 is the day).

3) There is no difference between phones shipped with Android 6 and phones shipped with Android 7, regarding their update. If a difference will exist, it will be reported.

Yeah, thanks I understand the date system used in information systems; Year, Month, Day, then a version number to show which releases came first when multiple releases are carried out in a single calendar year, but I now notice that the 20170412 releases now have what looks like a kind of version identifier, I admit I never noticed that being there before