Virtual Vista Metaverse is getting ready for the new PBR textures. An Opensim update will take place next week. There may be a grid outage of around 30 minutes. If you have a good computer, get ready for PBR with the new Firestormviewer.

Here is a description of what PBR is:
Right on the Firestorm homepage:

https://www.firestormviewer.org/

Download link Firestorm:

For PC:

https://downloads.firestormviewer.org/release/windows/Phoenix-FirestormOS-Releasex64-7-1-9-74745_Setup.exe

For Apple:

https://downloads.firestormviewer.org/release/mac/Phoenix-FirestormOS-Releasex64-7-1-9-74745.dmg