Alongside the update is an 'Insider Release Configuration Update' - whatever that is! But it sounds like it's important going forwards. Both updates get installed at the same time.
Note that devices/accounts on the 'Fast' or 'Slow' rings won't see this build since Microsoft is aiming the first 'Redstone 2' builds at those rings next week. Patience will be required, therefore - I doubt it's worth changing rings just to get '.82' and then changing back - just for a week with a few less bugs?
If your Windows Phone is relatively recent and it's not on Windows 10 Mobile, with or without the Insiders programme, then you're missing out on all the fun, all the UWP apps and services. See here for a link to the Upgrade Advisor utility you need that will take you through to 2016 and beyond!