jujutsu Accelerates Performance While Expanding Developer Capabilities

jujutsu v0.42.0 addresses performance at scale by switching to mimalloc, a memory allocator optimized for multi-threaded workloads, making the VCS more efficient for large projects. Enhanced shell completions with alias descriptions and new evolution history tracking based on change IDs improve developer workflow and repository management. The removal of deprecated options demonstrates the project's continued maturation while providing developers with increasingly sophisticated tools.