Ember 2026.8.23

Fixed

• test: assert the compose environment syntax the file actually uses (5f6241cc)
• deepseek4: stop charging warmup cost to steady-state speculation (af16fe4b)
• docker: drop compose declarations that only restated engine defaults (7810971a)
• docker: stop the entrypoint overriding compose, make compose authoritative (8c999fee)
• engine: correct two profiling-harness bugs found on hardware (3da625c0)

Performance

• deepseek4: 33.60 -> 37.49 tok/s decode via width-6 verify (027ed106)
• engine: extend DPP wave reductions, verified against the RDNA 3.5 ISA (3a54084c)
• engine: DPP wave reduction in hand-written assembly for gfx1151 (5f460a0c)
• engine: select WGP vs CU mode per translation unit on gfx1151 (410d61d1)
• engine: branch-free UE4M3 scale decode for gfx1151 (b6291ce6)

Build and CI

• docker: add Hyperloom to the dev image (88898ac8)

Documentation

• perf: document TTFT, and record why narrowing the FA KV read failed (1cb30f76)
• engine: link the two competing LUCE_MMVQ_MAX_NCOLS defaults (4a1ccfef)
• engine: correct the HIP-graph diagnosis, which blamed the wrong tensor (dcc00326)

Maintenance

• release: add gfx1151 kernel profiling harness (e5a0d064)
• release: document CI gates and clear prune residue (f02f7d10)
• release: document Forgejo sanitizer split (b760adb8)
• release: stabilize Forgejo queue (02305c07)
• release: recover release-note publication (08f4f9f8)
• release: repair certified tag publication (45ac7d3c)