As I'm no longer Secretary I can't confirm for certain, but rules proposed at the AGM are normally ratified at the EGM in January and introduced at the start of the new season i.e. The Champs/Inters.
This is because it would be inappropriate to introduce new rules half way through the Winter league season.
It is correct that it was proposed and agreed at the AGM to change kneeling lanes to kneeling or standing. That means you can opt to shoot a kneeling lane (not an individual target) from the standing position if you wish.
As I wasn't at the EGM, I can't verify if this change was ratified.