A new update is coming to Sword Art Online: Fatal Bullet on April 18th, 2019. You can find here all the important information regarding the changes, adjustments and new contents:

• Maximum Level 275 → 285
• 3 new high-difficulty quests added to online co-op:
  • LV285 HC Co-op: Special Invitation α
  • LV285 HC Co-op: Special Invitation β
  • LV285 HC Co-op: Special Invitation γ
• 3 new costumes added to Lobby
  • Heart of a Smith F (Anime GGO Lisbeth Costume) along with a variation
  • Tamer Suit F (Anime GGO Silica Costume) along with a variation
  • Howling Wolf M (Anime GGO Klein Costume) along with a variation
• 3 new accessories added (also available at the accessory trader)
  • CSS Beret (Anime GGO Lisbeth Hat)
  • Soldier Goggles (Anime GGO Klein Hat)
  • Senior Officer Cap (Officer Cap [variation] [unisex])
• Added total bounty rewards
  • Total bounty rewards are set from 120000000 to 140000000
  • Accessories (Legendary) and rank 11 weapons (both come with the special effect) are available. The effect level of the accessories or weapons will be set to the maximum.
• New rank11 weapons「Series Type-Z」available in new HC Co-op
  • Long Stroke Type-Z
  • Kagemitsu G9 Type-Z
  • Pandemonium Type-Z
  • Deneb Kaitos Type-Z"
• Adjustments parameter of more than 9 ranked weapons: 
  • Sword and Sword&Gun: critical rate up by 5%
  • HG Kuroneko: adjusted strength since it was relatively inferior to the other weapons.
  • Crimson Roar: adjusted strength since it was relatively inferior to the other weapons.
• Added events available to be viewed on the bed
  • Yui
  • Itsuki
• Added option to choose multiple materials for weapon transformations 
• Increased the limit of item storage and item Box. The limits will increase as follows: 
  • Item storage 400→ 500
  • Item box 700 → 800
• Online battle hero adjustments
• Several bugs fixed