Add versions.md and version.h files describing version branches and tags #228

1. 
   ryanofsky commented at 7:56 pm on October 15, 2025: collaborator

   Having libmultiprocess version numbers should be helpful for:

   • Backporting fixes for previous Bitcoin Core releases if we need to do that at some point (https://github.com/bitcoin/bitcoin/issues/33439).
   • Letting Bitcoin Core releases describe what libmultiprocess versions they are compatible with (https://github.com/bitcoin/bitcoin/issues/33576)
   • Letting code detect what version is used at compile-time or runtime, for logging, feature detection, error reporting, or other purposes.
2. 
   DrahtBot commented at 7:56 pm on October 15, 2025: none

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Reviews

   See the guideline for information on the review process.

   Type	Reviewers
   ACK	TheCharlatan

   If your review is incorrectly listed, please react with 👎 to this comment and the bot will ignore it on the next update.

   LLM Linter (✨ experimental)

   Possible typos and grammar issues:

   • include -> header [Sentence fragment: “Versioning policy is described in the version.h include.” — “include” is awkward/incorrect here; “header” or “include file” makes the meaning clear.]

   drahtbot_id_5_m

3. Add versions.md and version.h files describing version branches and tags 6e01d2d766
4. ryanofsky force-pushed on Oct 15, 2025
5. 
   ryanofsky commented at 8:41 pm on October 15, 2025: collaborator

   Updated 2b0dd9297529bde66d5b52efbde1a137013818e1 -> 6e01d2d766ebb6eb1fdc2136f5d39d93404c7e2a (pr/versions.1 -> pr/versions.2, compare) fixing llm linter errors
6. TheCharlatan approved
7. 
   TheCharlatan commented at 1:19 pm on November 4, 2025: collaborator

   ACK 6e01d2d766ebb6eb1fdc2136f5d39d93404c7e2a
8. ryanofsky merged this on Nov 6, 2025
9. ryanofsky closed this on Nov 6, 2025

   ---

Contributors
ryanofsky DrahtBot TheCharlatan