Update 19 is the Valentine's Day 2023 update. Its main feature is the complete rework of 
Love, accompanied by a temporary event based on heart tokens to exchange. The rest is mostly housekeeping: two fruits renamed, a series of balance adjustments, and a very long list of fixes.
How to get it
Released on February 25, 2023. The Valentine's Day event it brought ended on March 6, 2023.
The Valentine's Day Event
- You earn bonus EXP and heart tokens by playing with friends on the same server: +15% per friend, stackable up to +45%
- Heart tokens can be exchanged with a new NPC for exclusive rewards
Love Rework
- Summon your best friend to assist you in combat
- Ride a pink flamingo across the map, with 2 seats to bring someone along
- Each attack makes the opponent fall in love, which temporarily reduces the damage they deal to you
Changes
String is renamed Spider
Bird: Phoenix is renamed Phoenix
Mirage Island no longer requires a full moon, nighttime is enough- The detection radius for Mirage Island's moon activation is expanded, which should work better for Xbox players
- A notification displays when a new skill unlocks
- A lightweight version of
Blox Fruit Dealer is added to the 
Shop button for quick access to permanent fruits - Buddha Awakened skills deal more damage
Ghoul V4 gains a passive that reduces cooldown times
Stun and damage slightly increased on 
Rabbit V4 tornadoes- V4 transformation duration slightly reduced, and race energy gain on players slightly slowed
Human V4 rage gauge fills slightly slower- Slightly increased chance to find a fruit on the map
- Rumble Awakened [V] fires faster and projects less far
- After deactivating
Leopard transformation, you can switch tools immediately 
Dough [C] must now make contact to activate
Fixes
- Phoenix: transformation did not properly start cooldown when you took damage
- It was possible to use
Portal on players located in a safezone - Erratic behavior of
Control [V] 
Buddha raid boss was becoming giant- Sea 2 cinematic bugs
- Low-level
NPCs gave more transformation energy than intended - Bug between
Shark V4 and Buddha - V4 skills did not properly give mastery
- Hakaishin title
Fruits disappeared temporarily from your inventory- Naturally spawned fruits did not play their animation
- Dough V2 and Phoenix V2 abilities activated for no reason
- Aim remained locked on mobile, and some moves sometimes aimed in the wrong direction
Soul Guitar [X] sometimes dealt no damage- Shark V4 and Buddha sometimes killed you, and probably
Revive too - Infinite camera shake (fix announced as only potential)
- Players became permanently invisible (fix announced as only potential)
Twin Hooks combined with Dough V2 sometimes killed instantly (fix announced as only potential)- Moves that stopped working from time to time
- Weapon aura not displaying
- Thickness of Shark's water layer
- A bug where holding an attack in a portal made you pass through objects