Earlier today, March 22, 2016, kernel developer Zefan Li had the pleasure of announcing the immediate availability for download of a new maintenance release for the stable, long-term supported Linux 3.4 kernel branch.



Linux kernel 3.4.111 LTS is here for all those who run GNU/Linux operating systems powered by a kernel package from the 3.4 series, and according to the appended shortlog, it is a pretty big update that changes a total of 125 files, with 1390 insertions and 731 deletions.
Most of the changes are improvements to the x86 hardware architecture, networking stack updates, as well as multiple updated drivers, in particular for things like ATA (libata), crypto, EDAC, GPU (mostly Radeon), SCSI, ISDN, MD, networking (Ethernet, Virtio, SLIP, PPP), vhost, and USB.
"I'm announcing the release of the 3.4.111 kernel. All users of the 3.4 kernel series must upgrade," said Zefan Li in today's announcement. "The updated 3.4.y git tree can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary."
IPv6, IPv4, EXT4, and 9p fixes Besides the changes mentioned above, Linux kernel 3.4.111 LTS fixes multiple other issues and adds performance improvements for MIPS, s390, and TILE64 hardware architectures, the 9p, Btrfs, EXT4, HPFS, and OCFS2 filesystems, and brings support for the latest USB sound drivers.
As mentioned before, the networking stack has seen significant improvements in this new maintenance release of Linux 3.4, and among the things that received attention we can mention IPv4, IPv6, mac80211, netfilter, SunRPC, Reliable Datagram Sockets (RDS), Stream Control Transmission Protocol (SCTP), and IrDA.
We're urging all users of Linux kernel-based operating systems that use a kernel from the long-term supported Linux 3.4 series to upgrade to today's 3.4.111 build as soon as possible. The sources of Linux kernel 3.4.111 LTS are now available for download via our website or directly from kernel.org.