doc: update build guides pre v31 #34789

1. 
   fanquake commented at 2:31 pm on March 10, 2026: member

   We are testing on FreeBSD 15 (nightly) and macOS 26 (CI).
2. doc: update build guides pre v31

   We are testing on FreeBSD 15 (nightly) and macOS 26 (CI).

   6b20ad84e0
3. fanquake added the label Needs backport (30.x) on Mar 10, 2026
4. 
   DrahtBot commented at 2:31 pm on March 10, 2026: contributor

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5. hebasto approved
6. 
   hebasto commented at 3:04 pm on March 10, 2026: member

   ACK 6b20ad84e0a66c48976a599a7cc5b9b19cd49fab.
7. 
   maflcko commented at 3:08 pm on March 10, 2026: member

   lgtm ACK 6b20ad84e0a66c48976a599a7cc5b9b19cd49fab
8. hebasto merged this on Mar 10, 2026
9. hebasto closed this on Mar 10, 2026

   ---

10. fanquake deleted the branch on Mar 10, 2026
11. fanquake referenced this in commit 0f9e08f870 on Mar 10, 2026
12. fanquake removed the label Needs backport (30.x) on Mar 10, 2026
13. DrahtBot added the label Docs on Mar 10, 2026

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fanquake DrahtBot hebasto maflcko

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