rolling upgrade support for 2008 r2 cluster
I seen that there will be a rolling upgrade feature with 2016 that will support upgrading a windows 2012 r2 cluster to 2016 with no downtime. Could this functionality be extended to include upgrades from 2008 r2 clusters?
Elden Christensen [MSFT] commented
Correct, you can perform a Rolling Upgrade from N-1. So you can do a Rolling Upgrade from Win2012 R2 to Win2016.
Your ask of Win2008 R2 to Win2016 would be N-3 support of mixed version clusters.