[ashhart]

The Unreleased changelog checked against every PR merged since the 1.2.8 cut:

• glm cuda: a logit gather broadcasts one block a rank, so TP=3 prompt_logprobs past ~100 tokens no longer hangs #1571: the staging claim now carries the PR's own figures.
• hip flashnext: draft chains stop under a 0.8 confidence floor by default #2697: scoped to one RDNA 3.5 GPU (gfx1150 to gfx1153) serving alone, and its unnumbered duplicate line is gone.
• ci: the zig and zig-windows jobs get 90 minutes (test-host now takes about 50) #3298: also names ci: the zig and zig-windows jobs get 90 minutes (the change #3298's landing missed) #3300, which landed the change itself.

No code changes.

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