• This update adds compatibility for new mobs and blocks from 1.17
• This build of mcMMO should be more compatible with certain versions of ViaVersion
• Players are no longer launched from Minecarts when using a Fishing Rod (they are still dismounted) thanks lexikiq
• Updated Japanese locale (thanks ViaSnake)
• Updated Brazil Portuguese (pt_BR) locale (thanks Paulo Guilherme)
• Added Goat to experience.yml for combat and taming
• Added Axolotl to experience.yml for combat and taming
• Added Glow_Squid to experience.yml for combat and taming
• Added Glow Berries to Farmer's Diet
• Updated Super Breaker to recognize the new pick-axe appropriate blocks
• Updated Tree Feller to recognize Azalea Leaves
• Added Rooted Dirt to experience.yml for Excavation
• Added Small Dripleaf to experience.yml for Herbalism
• Added Big Dripleaf to experience.yml for Herbalism
• Added Moss Block to experience.yml for Herbalism
• Added Cave Vines to experience.yml for Herbalism
• Added Cave Vines Plant to experience.yml for Herbalism
• Added Glow Lichen to experience.yml for Herbalism
• Added Tuff to experience.yml for Mining
• Added Calcite to experience.yml for Mining
• Added Smooth Basalt to experience.yml for Mining
• Added Block_Of_Amethyst to experience.yml for Mining
• Added Budding Amethyst to experience.yml for Mining
• Added Small_Amethyst_Bud to experience.yml for Mining
• Added Medium Amethyst Bud to experience.yml for Mining
• Added Large Amethyst Bud to experience.yml for Mining
• Added Amethyst Cluster to experience.yml for Mining
• Added Deepslate to experience.yml for Mining
• Added Cobbled Deepslate to experience.yml for Mining
• Added Copper Ore to experience.yml for Mining
• Added Deepslate Redstone Ore to experience.yml for Mining
• Added Deepslate Copper Ore to experience.yml for Mining
• Added Deepslate Coal Ore to experience.yml for Mining
• Added Deepslate Diamond Ore to experience.yml for Mining
• Added Deepslate Emerald Ore to experience.yml for Mining
• Added Deepslate Iron Ore to experience.yml for Mining
• Added Deepslate Gold Ore to experience.yml for Mining
• Added Deepslate Lapis Lazuli Ore to experience.yml for Mining
• Added Lapis Lazuli Ore to experience.yml for Mining (was missing)
• Added Moss Block to Bonus Drops for Herbalism in config.yml
• Added Glow Berries to Bonus Drops for Herbalism in config.yml
• Added Cave Vines to Bonus Drops for Herbalism in config.yml
• Added Cave Vines Plant to Bonus Drops for Herbalism in config.yml
• Added Tuff to Bonus Drops for Mining in config.yml
• Added Amethyst Shard to Bonus Drops for Mining in config.yml
• Added Calcite to Bonus Drops for Mining in config.yml
• Added Smooth Basalt to Bonus Drops for Mining in config.yml
• Added Block_Of_Amethyst to Bonus Drops for Mining in config.yml
• Added Budding Amethyst to Bonus Drops for Mining in config.yml
• Added Small_Amethyst_Bud to Bonus Drops for Mining in config.yml
• Added Medium Amethyst Bud to Bonus Drops for Mining in config.yml
• Added Large Amethyst Bud to Bonus Drops for Mining in config.yml
• Added Amethyst Cluster to Bonus Drops for Mining in config.yml
• Added Deepslate to Bonus Drops for Mining in config.yml
• Added Cobbled Deepslate to Bonus Drops for Mining in config.yml
• Added Raw Iron to Bonus Drops for Mining in config.yml
• Added Raw Gold to Bonus Drops for Mining in config.yml
• Added Raw Copper to Bonus Drops for Mining in config.yml
• Added Copper Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Redstone Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Copper Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Coal Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Diamond Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Emerald Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Iron Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Gold Ore to Bonus Drops for Mining in config.yml
• Added Deepslate Lapis Lazuli Ore to Bonus Drops for Mining in config.yml
• Added Lapis Lazuli Ore to Bonus Drops for Mining in config.yml (was missing)
• Added Cobbled Deepslate to experience.yml for Smelting
• Added Raw Copper to experience.yml for Smelting
• Added Raw Iron to experience.yml for Smelting
• Added Raw Gold to experience.yml for Smelting
• Added Copper Ore to experience.yml for Smelting
• Added Deepslate Redstone Ore to experience.yml for Smelting
• Added Deepslate Copper Ore to experience.yml for Smelting
• Added Deepslate Coal Ore to experience.yml for Smelting
• Added Deepslate Diamond Ore to experience.yml for Smelting
• Added Deepslate Emerald Ore to experience.yml for Smelting
• Added Deepslate Iron Ore to experience.yml for Smelting
• Added Deepslate Gold Ore to experience.yml for Smelting
• Added Deepslate Lapis Lazuli Ore to experience.yml for Smelting
• Added Lapis Lazuli Ore to experience.yml for Smelting (was missing)

NOTES:
Another patch will follow this one shortly to add more 1.17 support, I am waiting on the Spigot API to test some stuff which isn't out yet.
You shouldn't need to edit your configs for this update, your configs should update automatically.
Expect some patches following this update for Axolotl and other new entities, waiting on the Spigot API to become available
If you run into any issues with ViaVersion or ViaBackwards, use the latest dev builds for each.