Updating should be OK.
The minor problem people are facing at the moment (both developers and public beta testers) is that if they chose to do a clean install of the public release, this beta was not showing up in their mac app store.
Apple realised this and quickly made a yosemite seed configuration utility for developers, just as they previously did for public beta testers.
So in the case of clean installs of public release, you just have to install the relevant seed configuration utility for your program and then they should show up in the mac app store again.
It is unlikely you will need to get the full installers for 10.10.1, 10.10.2, etc., because for public releases of these, the deltas and combos will be published on apple's website anyway.
Nevetheless, I intend to get the full installers anyway for 2 reasons:
1. Make bootable usbs of 10.10.1, 10.10.2, etc
2. Run the full installer to update the recovery partition, since deltas and combos don't update the recovery partition.
I'll download the deltas and combos anyway too though because they can also be useful in case a reinstall is necessary.