This report has not been entirely finished due to RL intruding, but it will be. Some of the coolest features of this release are:
Unprivileged file system mounts: FUSE filesystems can be mounted by unprivileged users
- The amdgpu driver has incorporated code for the future Vega20
A new kernel polling interface for asynchronous I/O
Restartable sequences, a "mechanism for lockless concurrency control in user space"
A TCP zero-copy receive API and support for high-performance AF_XDP sockets
Initial work on bpfilter, which aims to provide faster netfilter functionality using BPF
- Support for Qualcomm Snapdragon 845, a SoC used by many high-end mobile devices
There are many other interesting features. Read more about them in:
LWN's merge window part 1, part 2, Statistics from the 4.18 development cycle
Phoronix The Changes & New Features For Linux 4.18, Benchmarks Are Incoming
In German: Die Neuerungen von Linux 4.18
or check the merge list: