So can someone please clarify what is going on?

Is the date of August 1st still an important date at which we should stop trading bitcoin, or with BIP91 locked in did anything change?
I have money on coinbase and want to buy in a dip but can't say for sure if i'm in any kind of a risk buying after BIP91 locks in (which is tommorow) or after 1st of August now that BIP91 will be locked in earlier?