Can't Update to preview 5?!?!?

[Donelop]

I've clicked update like 40 times. All it does is reboot my computer. Laptop is fully charged and plugged in.

 

[mrapplegate]

Is there an expiration date for the OS X previews? The current build is preview 8, not 5.
Download 8 from the developer site. 5 might have an expiration date like the iOS betas have.

 

[maflynn]

I'd reach out to apple and file a bug report.