Four unrelated 0.29 surface changes, each reproduced locally against the
pinned f5c3cc24 build:
- PromptUpdateDetails.is_embed now takes only the full token list. The
Bagel img2img replacement still declared (tok, seq), which crashed
stage-0 engine core startup and produced the Distributed and Qwen3-Omni
"no live replica" failures rather than anything KV related.
- dispatch_unquantized_gemm gained a linear_backend argument and is called
with it. The CPU-forcing test stubs took no arguments; they now accept
and ignore whatever upstream passes so a further signature change does
not break them again.
- VocabParallelEmbedding gained a fused kernel that engages whenever
tp_size > 1 on CUDA, and it has no CPU implementation. The encoder TP
fixtures drive CPU tensors under a faked TP group, so they pin the
portable masked path.
- The pyav video decoder backend was removed; valid options are now
opencv, torchcodec, pynvvideocodec and deepstream. The OpenAI video
endpoint hardcoded pyav, which turned every video request into a 400.
It moves to opencv, the upstream default.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0146Xu5Sgj4vXxLxvLjV5YPj
Signed-off-by: tzhouam <tzhouam@connect.ust.hk>
