Horde Zen Server 5.7 to 5.8 Upgrade Compat

I did not see any specific documentation, but 5.8 zen server has at least had considerable cosmetic changes to the dashboard. I wanted to ask if the cache generated on a 5.7 instance is compatible with 5.8 or if it will need to be re-generated after the upgrade? Thanks!

[Attachment Removed]

Steps to Reproduce
Upgrading our remote zen server from 5.7 to 5.8.

[Attachment Removed]

I can confirm that a cache generated with 5.7 will load on 5.8 and will not require regeneration.

Sorry for the delay in getting back to you since our summer break!

[Attachment Removed]