7.x branch appears to be missing patches

[lukebakken]

While working on #1158 I noticed that the changes in @bollhals PR #1077 don't appear in the 7.x branch.

Here's another questionable place:
#1144 (review)

@michaelklishin @stebet I'm wondering what your thoughts are? I know we have planned 7.x as an "interim" before the "big release" but it seems like the branch can't be trusted right now.

[bollhals]

I've brought this up in various other PRs. I think main should be 7.0 as there aren't big changes in there, with the exception of the basicProperties change to valuetypes.

At this point I have 0 clue whats in the 7.0 branch of all the changes made between 6.2.x and latest main.

[michaelklishin]

We should forward port what's missing, or we can release off of main.

[lukebakken]

Great, thanks for the feedback. I'll wait to see what @stebet says as well but it sounds like main should become 7.0.0 and the current 7.x branch abandoned.

[bollhals]

with the exception of the basicProperties change to valuetypes.

That would be this PR => #1096 (comment)
which I already asked in the PR whether we want to go down this path or not.

[lukebakken]

I am going to proceed with renaming the current 7.x branch to 7.x-abandoned. main will become version 7.0.0. I will also update GH milestones to reflect this.

Just maintaining main and 6.x has been more than enough work.