v2.5.0 — Conditional-Request Taxonomy & Sequencers
Phase 13 milestone 49. Implements the conditional-request taxonomy (compound, compound-wait, triggered, chained, timed) via the mtv=0 message_timestamp-repurposing trick over ACF_GBB, the three cancellation kinds and their shared semantics, the sequencer-state behavior layer, and the full pending → started → under_execution → finalized request lifecycle, building on v2.4.0's endpoint types.
See ROADMAP.md's "Done (v2.5.0)" entry under milestone 49 for full details, and PR #42 for the change itself.