GNU/Linux kernel 6.3 (2023-04-23)

• https://kernelnewbies.org/Linux_6.3

Summary

This release includes:

• improved Btrfs performance and fragmentation improvements,

• support for non-executable memfds,

• support for IPv4 Big TCP,

• new ids to the rseq system call,

• support AMD QoS new features,

• specifications for the netlink protocol,

• more secure NFS encryption, and multi-actuator support in the BFQ I/O sched

As always, there are many other features, new drivers, improvements and fixes.