Rule Changes for 2023, the main ones affecting us are:

Clubs will now be permitted to name a fifth interchange player (an 18th player), to be used only in the event of three players failing an HIA in the same match – the same system that applied in the Rugby League World Cup last autumn. (The number of days a player is not available after failing a HIA as been raised to 12)

If the referee calls time off for a player to receive medical attention, the player will have to leave the field for two minutes of elapsed playing time before being allowed to rejoin the match. This is with a view to reducing timewasting and gamesmanship, in addition to respecting the primary importance of player safety.

Penalties awarded at scrums, will no longer be differential penalties, as previously – meaning that the non-offending team will be able to kick for goal.

Good, some sides where using this like football teams do and it was more or less guaranteed whilst they were ahead and under pressure in a tight game.