Comment # 3 on bug 1085628 from Richard Brown

(In reply to Richard Brown from comment #2)
> What changed?
> 
> The old subvolume layout:
> 
> https://en.opensuse.org/SDB:BTRFS#Old_.2Fvar.2F.2A_subvolume_layout_.
> 28pre_Jan_2018.29
> 
> The new subvolume layout:
> 
> https://en.opensuse.org/SDB:BTRFS#Default_Subvolumes
> 
> Email announcement:
> 
> https://lists.opensuse.org/opensuse-factory/2018-01/msg00390.html
> 
> How does someone convert?
> 
> They don't.

Please note - all of the above applies for SLE 15 also, I would assume this is
needed in the release notes there also.