Mise, previously known as rtx, is gaining popularity as a developer tool that consolidates version management for multiple programming environments, helps manage environment variables, and acts as a task runner. Users praise its compatibility with existing tools while highlighting its ease-of-use in comparison to alternatives like asdf and Nix. Key features added include task running and backends for managing development dependencies, which cater to the needs of various ecosystems. However, some users seek improvements for Windows support and integration into CI/CD workflows, pointing out its limitations in those areas. The overall sentiment is positive, with many developers enjoying improved productivity and streamlined workflows.