Enfamil neuro pro infant formula question

GENERAL

I have Enfamil neuro pro infant formula and it expires August 1st 2024, in 5 days. I notice it has a darker color than the newer stuff I had. I also noticed my little girl pooping allot after she had a few bottles. Is this still good? I’m not going to use it anymore. But is this formula no good even though it hasn’t expired yet?