Everything, ranging from crafting to taming, gives you xp!

Use /gamerule BreakingBlocksGivesXp to get a little bit of xp for breaking blocks

Current new ways of getting xp:

• Breaking blocks (toggleable)
• Using Bonemeal
• Crafting
• Smelting
• Landing critical hits
• Sleeping
• Trees growing
• Fishing
• Taming mobs
• Using a totem
• Being struck by lightning
• Blocking
• Entering the end
• New cleric trades
• Anchievements
• Entering the nether for the first time

Armour:

• Lapis set - each piece gives xp over time

Other:

• Compact xp - A throwable xp orb made from 9 xp bottles
• Liquid xp - Standing in this will summon xp orbs