We have fully tested the 0.28 stemcell using the vSphere CPI with the following deployments/releases and everything appears to be fully functioning:

cf-deployment
logsearch-boshrelease
logsearch-for-cloudfoundry
prometheus-boshrelease

We still need a new release of smb-volume-release to fix https://github.com/cloudfoundry/smb-volume-release/issues/16 but I've updated the notes with our temporary work-around and we'll go to production with a dev release for now.  Thanks to everyone involved for keeping the open source version of CF secure.

Aaron