Minecraft wiki entry for Development_versions, associated text: Command blocks with 'Needs Redstone' and a non-zero 'Delay in Ticks' will now execute only if they remain powered for the delay duration (MCPE-74281).
Fix alignment of the sidebar display from the /scoreboard command when text length changes.
Fixed failure to render leash when attached to a mob outside of viewport (MCPE-63931).
Fixed ability to summon experience orbs via /summon command (MCPE-130835).
Fixed display only entity destruction in chunk discard scenarios.
Fixed query.item_remaining_use_duration having improperly scaled or inverted results (This fix is a Versioned Change as of engine version 1.17.30).