Updates for ESXi 5.0, 5.1 and 5.5 have been published at the beginning of December. All Updates are now listed at my VMware ESXi Release and Build Number History.
The latest versions are now:
- ESXi 5.5 Build 2302651
- ESXi 5.1 Build 2323236
- ESXi 5.0 Build 2312428
ESXi 5.0 does now have the Mem.ShareForceSalting option. This additional Transparent Page Sharing management capabilities are also present in 5.1 and 5.5 since October. The option disallows inter-VM TPS to mitigate a security concern.