Downgrade from VirtualBox 4.2.0 to 4.1.22

[helfrw]

Hallo,

I had to downgrade from VirtualBox 4.2.0 to 4.1.22 (because VM Mac OS X Snow Leopard 10.6.8 is no more running in 4.2.0). My question now: I had on all my 10 windows and 6 Linux guests (different versions of openSuSE) installed the VirtualBox Guest Addititions 4.2.0. Can I use this version of VB Guest Additions with VirtualBox 4.1.22 or have I all VMs to downgrade to Guest Additions 4.1.22 ?

[mpack]

You can try it for a while to see if it works, but generally speaking forwards compatibility is much harder than backwards compatibility, especially if it crosses major releases. Downgrade if you spot problems.

[helfrw]

thank you, mpack. I tried three windows (xp, vista and 7) VMs with additions 4.2.0 on VB 4.1.22. They work so far and until now I could not see any problems, nevertheless one of them I did downgrade.