Key features of Linux 3.4 include:
- Intel performance improvements (Sandy Bridge / Ivy Bridge).
- New power management phases and a PCI-E ASPM change.
- The initial Radeon HD 7000 series / Trinity code for the kernel DRM driver. (The user-space Gallium3D support though is still a mess.)
- Many Btrfs changes.
- DMA-BUF PRIME support.
- x32 ABI support.
- Initial GeForce 600 Kepler series support.
The release came right on time as expected last week.
The release announcement for the Linux 3.4 kernel can be found at LKML.org.