A number of new projects have been introduced during this release cycle, and many improvements have been landed. Very many bugs have been squashed. This list is an extreme over-simplification of the thousands of commits done since the last release. Hopefully, releases will happen more often so this is not always the case.
• rmm, a complete rewrite of the kernel memory manager. This has eliminated kernel memory leaks, which became quite an issue with the previous memory manager. Additionally, multi-core support is far more stable.
• Much of the work of RSoC, sponsored by donations to Redox OS, has been integrated into this new release. This includes work on ptrace, strace, gdb, disk partitioning, logging, io_uring, and more.
• relibc has seen a large amount of work, culminating in improvements for anything that depends on it (i.e. everything in userspace).
Redox is a UNIX-like operating system written in Rust, running on a microkernel.