Is there a summary of what code and/or configuration changes need to be implemented by mining pools and associated code to properly support the upcoming hard-fork? Do packages like ethash need to be updated?
One important note for that is to find on the Ethereum Blog:
Furthermore, we’d like to emphasize that the upgraded database cannot be used by previous versions of Geth. Our recommendation for production users it to sync from scratch with Geth 1.7.0, and leave the old database backed up until you confirm that the new release works correctly for all your use cases.
EDIT: This is, of course, only relevant for Geth users - you have to do this update with it's implications/consequences. No problems here for me, though.