Just had the May update arrive as a separate 273.42MB update this morning

Not so keen on the reversion to the Google standard navigation gestures that comes with 6.1 - I'm so used to and prefer the old One UI gestures. Luckily I've found NavStar within Good Lock allows these to be restored (as covered here). 

I also initially couldn't work out how to start Circle to Search - the most useful part of 6.1 I've noted thus far - when using the old gestures (and the hints turned off, but find it launches fine by just holding a finger at the very bottom of the screen in the middle.

(Edit: also got 6.1 with April update, and had the May download today.)

Anything particularly interesting about may update, the previous two updates killed the voice assistant which was annoying. The answer is to uninstall and reinstall the google app..

afe66:

 

Anything particularly interesting about may update, the previous two updates killed the voice assistant which was annoying. The answer is to uninstall and reinstall the google app..

 

@afe66: I assume you meant to put a question mark in there, ie "Anything particularly interesting about may update?"?! Asked and answered as to the most useful update, ie Circle to Search.

All changes are summarised here: https://doc.samsungmobile.com/SM-G998B/XNZ/doc.html

BTW, I had no issue with voice assistant (assuming you meant Google's) with any of the recent updates, so doesn't seem to have been a universal problem...