Stephen Spector published a post yesterday on the Xen blog featuring a proposed data sheet (PDF) for the upcoming Xen 3.3 release, which we said was in final testing stage in the beginning of this month.
Update 26 August: Xen 3.3.0 is available for download.
The complete list of new features in Xen 3.3 includes:
Performance and Scalability
- CPUID Levelling
- Shadow 3 Page Table Optimizations
- EPT/NPT 2MB Page Support
- Virtual Framebuffer Support for HVM Guests
- PVSCSI — SCSI Support for PV Guests
- Full 16-bit Emulation on Intel VT
- Support for memory overcommit allowing more VMs per physical machine for some workloads
Security
- PVGRUB Secure Replacement for PYGRUB
- IO Emulation “stub domains” for HVM IO
- Green Computing
- Enhanced C & P State Power Management
- Graphics Support
- VT-d Device Pass-Through Support
Miscellaneous
- Upgrade QEMU Version
- Multi-Queue Support for Modern NICs
- Removal of Domain Lock for PV Guests
- Message Signalled Interrupts
- Greatly improved precision for time-sensitive SMP VMs