Notable changes.<p>- The Bcachefs file system is now in the kernel<p><pre><code> Bcachefs is a next-generation of CoW (Copy-on-Write) file system for Linux (similar to zfs or btrfs with improvements). It has support for snapshots, compression, encryption, caching, replication and more.
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- New Futex API<p><pre><code> Futex (Fast User-space Mutex) is kernel system call operate directly on user-space to improve performance of locking mechanisms inside programs. Set of significant incremental improvements made to clean up the Futex API.
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- Exceptions for BPF virtual machine<p><pre><code> Did you know that there's a virtual machine called BPF that runs inside kernal space to safely execute dynamic programs with JIT compilations? BPF (Berkeley packet filter) has been getting more and more improvements over the years and exceptions was the latest improvement to the language.
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- Itanium (IA-64) architecture removed for the kernel<p><pre><code> IA-64 which was Intel's attempt for 64 bit processor architecture which was completely overshadowed by AMD's x86-64 is now completely gone from the Linux kernel.</code></pre>