Changes to the block / charge to be more like the NBA finally happened. Good for player safety since defenders can no longer draw a charge by moving under a guy who has planted and is going up to shoot.
Under the new rule, a defender will have to be in position to draw a charge at the time an offensive player plants a foot to go airborne to attempt a field goal. If the defender arrives after the offensive player plants a foot to launch toward the basket, officials will be instructed to call a block when contact occurs between the two players.
A secondary defender still would have to be outside the restricted-area arc to legally draw a charge.
www.ncaa.org
I'm not a fan of the airborne timeout, but the other gameplay rules and those governing challenges are very positive. I think it's crazy that it takes 3 flagrant fouls to be ejected, though.
Under the new rule, a defender will have to be in position to draw a charge at the time an offensive player plants a foot to go airborne to attempt a field goal. If the defender arrives after the offensive player plants a foot to launch toward the basket, officials will be instructed to call a block when contact occurs between the two players.
A secondary defender still would have to be outside the restricted-area arc to legally draw a charge.
Other rule changes
- An optional rule will allow for preloaded/live video to be transmitted to the bench area. This has been an experimental rule for the past two years.
- Officials will be able to review goaltending/basket interference calls during the next media timeout to ensure the calls were accurate, as long as the official calls it on the floor. If there is a foul on the shooter while the ball is in the air with a goaltend/basket interference, the review would be immediate to properly adjudicate the potential free throws.
- Bench personnel who are not students will be allowed to serve as peacekeepers when an altercation occurs.
- Under two minutes, when a coach requests an out-of-bounds play be reviewed, that team will be charged a timeout if the original call is not overturned.
- Anytime the ball hits the rim and the offense retains possession in the front court, the shot clock will reset to 20 seconds.
- If a player is called for a foul and instant replay officials see that the foul is a direct result of a flagrant 1 or flagrant 2 foul against the player who was originally assessed a foul, officials will be allowed to remove the foul on the player who was flagrantly fouled.
- A timeout will be able to be granted when a player has possession of the ball even though the player is airborne. (An example would be a player grabbing a loose ball and calling timeout before landing out of bounds.)
- If a player commits three flagrant 1 fouls in a game, the player will be disqualified from the game.
- Players will be allowed to wear numbers 0-99.
- Schools will no longer have to submit a waiver for players to wear religious headwear, provided it is safe for competition.
- Red and amber lights will be allowed on the backboard.

Change to legal guarding position approved for men’s basketball - NCAA.org
The NCAA Playing Rules Oversight Panel on Thursday approved a men's basketball rules change for the 2023-24 season to the legal guarding position on block/charge

I'm not a fan of the airborne timeout, but the other gameplay rules and those governing challenges are very positive. I think it's crazy that it takes 3 flagrant fouls to be ejected, though.