Linux 3.5 released

kernelnewbies.org

Linux 3.5 has been released on 21 Jul 2012.

Summary: This release includes support for metadata checksums in ext4, userspace probes for performance profiling with tools like Systemtap or perf, a sandboxing mechanism that allows to filters syscalls, a new network queue management algorithm designed to fight bufferbloat, support for checkpointing and restoring TCP connections, support for TCP Early Retransmit (RFC 5827), support for Android-style opportunistic suspend, btrfs I/O failure statistics, and SCSI over Firewire and USB. Many small features and new drivers and fixes are also available.

1. Prominent features in Linux 3.5
   1. ext4 metadata checksums
   2. Uprobes: userspace probes
   3. Seccomp-based system call filtering
   4. Bufferbloat fighting: CoDel queue management
   5. TCP connection repair
   6. TCP Early Retransmit
   7. Android-style opportunistic suspend
   8. Btrfs: I/O failure statistics, latency improvements
   9. SCSI over FireWire and USB
2. Driver and architecture-specific changes
3. Various core changes
4. Memory Management
5. Block
6. Perf/tracing
7. Virtualization
8. Security
9. Networking
10. File systems
11. Other news sites that track the changes of this release