This PR, replacing #32359, doesn’t remove the -datacarrier or -datacarriersize options. Contrary to what many are saying, the PR does not force the user to accept larger datacarrier transactions in transaction relay. Setting -datacarrier=0 still turns it off, and -datacarriersize=83 gives you the original default (the same amount of data but across 1 or more outputs).

Some developers still believe the option should be removed, but there is consensus for waiting at least 1 release like we did for -mempoolfullrbf. No timeline is set for removal.

read more: https://github.com/bitcoin/bitcoin/pull/32406