It’s September 1, and that means new laws are in effect for Texas.
Take a look here for a summary and rundown.
And remember, regarding speed limits, just because the law might say one thing doesn’t mean you can go zipping around at the faster speeds… yet. It’s a matter of what’s POSTED. Of course, this all implies you adhere to posted limits in the first place….
Stuff From Hsoi 
Not quite true. The night time speed limits that are posted are now all unenforceable.
All my vehicles start getting near single digit gas mileage over 80 mph, so I probably won’t be going over 75 even if the limits change.
Ah cool!
But yeah, there’s the whole MPG factor to consider. Still tho, it’ll be nice to get around a little faster.