Houdini 20.5.278 is noted for its stability as an early production build. Community reports indicate that while initial releases of 20.5 had longer startup times, version 20.5.278 remains a benchmark for reliability before subsequent daily builds (like 20.5.303) focused specifically on optimizing launch speeds.
: New tools allow for "ragdoll" style posing that respects physical constraints while keyframing. SideFX Houdini 20.5.278
: Both tools have been rewritten to support high-density meshes with significantly better performance. Houdini 20