What changed
Ollama's signed 0.34.3 RC1 makes GET /api/show report each model's supported thinking levels and default, adds Nemotron H vision support on Apple Silicon through MLX, and stops the macOS app from reopening windows that users closed.
Why it matters
Machine-readable reasoning controls can prevent clients from guessing unsupported levels or hidden defaults, while the MLX addition expands local vision coverage. Both API metadata and multimodal output need qualification before stable promotion.
What to do
Canary the signed prerelease outside production. Query /api/show for models with different thinking controls, validate the advertised default against an actual request, and test a consented image set on Apple Silicon while tracking output, latency and memory. Keep 0.34.2 ready for rollback.
Caveat
This is a prerelease, not stable 0.34.3. The capabilities and fixes are project-reported; model metadata may vary, and Nemotron H vision correctness and performance have not been independently evaluated across Apple Silicon generations.