DriveInstall_5.0.5.0.aL disappeared!

Hello,

I found DriveInstall_5.0.5.0.AL installer run file was disappeared from Download center.
Instead 5.0.5.0bL replaced it.

Any serious issues?
And should I upgrade all Drive PX2 to 5.0.5.0.bL?

Thanks

Dearnvdpx2,
Drive 5.0.5b is our latest release. Please upgrade to it.