The Rust-written open-source Redox OS operating system saw a roughly 500% to 700% performance improvement for basic file copy operations since the end of last year, among other ongoing performance optimizations. Plus various other Redox OS features continue to be addressed too as noted in their newest monthly status report.

The status report for Redox OS during July 2025 was published earlier today. Redox OS has seen more work on POSIX compliance testing, ongoing Unix Domain Sockets support, benchmarking the file copy performance between last November and July, a number of driver improvements, improvements to its Relibc libc implementation, and enhancements to porting over different programs to Redox.

Some recent software/application work for Redox OS includes fixing Zstd, fixing GCC G++ and LLVM 19 compilation, updating Mesa to use dynamic linking, and other changes.

Beyond the 500~700% file copy performance win from November to now, Redox OS developers are also looking at performance optimizations around their file-system and other areas like context switching speed. Redox OS also now has a GUI for its kernel debugger:

More details on these July highlights for Redox OS via the Redox-OS.org blog .