The release for 5.1 is scheduled for November. Now, that release time could change (perhaps +1 month change) given QA/Eng does not see any major time restraints. I do tell customers that if the upgrade is not pressing, and if none of the new features of a new release are not required, to upgrade till a MR (if the AP count is 2-5 then I wouldn't hessitate to upgrade myself). Just common practice to give new releases time to mature so that new bugs, if any, are tended to in MR. There are no major bugs related to 5.0. Having said that we have thousands of customers running 5.0 and we have not seen any stoppers or issues where we had to retract SW.
Thank you Robert,
Ruckus Wireless Support Eng.