Haven’t seen breaking changes from 12.5 yet, but check your kernels if using dynamic parallelism.
Managing data across separate host and device spaces is a known computational bottleneck. CUDA 12.6 introduces refined mechanisms for and Unified Memory (UM).
For years, NVIDIA’s software dominance felt like a moat—a way to keep people locked onto GeForce and Quadro cards. But with CUDA 12.6, the tone has shifted. It is no longer just about keeping you on NVIDIA hardware; it is about how NVIDIA handles a world where their own hardware is supply-constrained and competition is breathing down their neck.
Let’s get the technicalities out of the way first. CUDA 12.6 is the official "launchpad" for the Blackwell architecture (B100/B200 GPUs).