doc: Bump version number v7 -> v8 #241

Increase version number after previous version was added to bitcoin core. Also update version history and documentation.

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Note: a good followup for this PR would be to port willcl-ark's change https://github.com/bitcoin/bitcoin/pull/33623 from the 29.x branch to the 30.x and master branches, adding libmultiprocess and capnproto version information to the dependencies documents:

• https://github.com/bitcoin/bitcoin/blob/29.x/doc/dependencies.md#optional
• https://github.com/bitcoin/bitcoin/blob/30.x/doc/dependencies.md#optional
• https://github.com/bitcoin/bitcoin/blob/master/doc/dependencies.md#optional

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Updated 34c3d043b5b0ca04909ef5361779e8924239e04e -> 0ade1b40ac5ab2118bea580c12cbe16fae9d452f (pr/v8.3 -> pr/v8.4, compare)<!-- end --> to fix llm typos

If I understand correctly 7.0-pre1 are all in Bitcoin Core 30.x, while 7.0 changes will go in 31.x, unless they're backported. So I guess we should have bumped the version earlier? Since the version is encoded in MP_MAJOR_VERSION we can't retroactively adjust the tags.

ACK 0ade1b40ac5ab2118bea580c12cbe16fae9d452f

I did not check the PR links to earlier subtree updates.

Thanks for the review!

Since the version is encoded in MP_MAJOR_VERSION we can't retroactively adjust the tags.

Exactly yes. I added the v5.0-pre1 tag when I wanted to tag a version between v4.0 and v5.0 and I added a v7.0-pre1 tag when I wanted to tag a version between v6.0 and v7.0. This seemed less awkward than renumbering due to MP_MAJOR_VERSION being present. In the future, it shouldn't be necessary to have any more -pre tags as long as the version number is bumped consistently. When I initially created the v0..v7 tags, I just didn't create enough of them and didn't leave space between them.

and didn't leave space between them.

Oh this brings back memories of BASIC line numbering...