YES, BOTH SERVER AND CLIENT NEED THIS UPDATE.

REFRACTOR

• Refractor's Diamond Form no longer removes your vulnerability to blunt force damage or explosions.

• Refractor no longer replenishes trapped light by eating gemstones unless they are in Emerald Form.

• Healing 10 times by taking fire damage will cause you to overheat. While overheated, you can not heal from fire for 10 seconds and your vision is slightly obstructed. You can avoid overheating by taking no fire damage for more than 3 seconds. For every second beyond 3 seconds that you spend taking no fire damage, you will gain one more use of fire healing, two if you are in water.

GENETICIST

• Injecting yourself with genes now requires you to sneak to prevent accidental inputs.

• Can now only inject other players with a single gene at a time, unless those players are Human or a Human Champion (from Libra). Can still inject itself with any number of genes.

• Now has access to a new block called the Gene Duplicator, obtainable post-nether, that allows them to make copies of genes they have already obtained.

• Is now immune to Stabilizers, Genes and Mutagens used by opposing Geneticists without requiring a Genetic Lock.

• Genetic Lock: Raises the drop chance of Generic Genes and Special Genes to 100%.

• Added 3 new early game active genes: Ender Pearl Toss, Airdraft and Suitcase (as seen in Enderian, Elytrian and Shulk).

• Fixed the drop pool of Allays. Added Parrots as a mob you can get special genes from.

• Glow Ink Spray now causes Hexblade to take additional soul damage.

• Mutagens can now also remove Special genes, since they are easier to get now.

MYCONOID

• No longer loses genes when devolving.