[sheepdog] [ANNOUNCE] Sheepdog stable release v0.9.2

[Hitoshi Mitake]

Hi sheepdog developers and users,

I'd like to announce the release of sheepdog v0.9.2:
https://github.com/sheepdog/sheepdog/releases/tag/v0.9.2

The most important change is disabling VDI locking in a default
configuration. You need to enable the feature with formatting a
cluster with -l option (e.g. dog cluster format -l).

Therefore, rolling update from v0.9.1 is not supported. You need to
shutdown a cluster of v0.9.1 before updating. Sorry for inconvenience.

The difference from rc0 is backporting a patch from Bingpeng Zhu:
sheep/recovery: use correct length for hash digest compare

Thanks,
Hitoshi