Linus Torvalds has announced the closure of the merge window for Linux version 7.1, allowing public testing to begin with the first release candidate now available. This version includes a significant rewrite of the NTFS code aimed at improving dual-boot experiences between Windows and Linux. Additionally, Linux 7.1 will gradually phase out support for the i486 Intel processor and some older networking technologies and SoC configurations. Users can find the release candidate in Linus' Linux Git repository and are encouraged to report any bugs.