Full patch notes available.

Monster Hunter Stories 2: Wings of Ruin had been updated to version 1.2.0. This update adds new monster, co-op quests, subquests and bug fixes.

Here are the full patch notes:

Main Additions / Changes

Additional Monsters

[August 5]

• Kulve Taroth (Co-Op Quest Exclusive Monster)
• Hellblade Glavenus
• Boltreaver Astalos

Additional Co-Op Quests

[August 5]

• ★8 (Time) The Goddess of Gold
• ★8 (Explore) Fire Eggs
• ★8 (Explore) Thunder Eggs

[August 19]

• ★9 (Slay) Hellblade Glavenus
• ★9 (Slay) Boltreaver Astalos
• ★8 (Turn) Glavenus
• ★8 (Turn) Astalos

Additional Subquest

[August 5]

• ★4 (Special) Dealin’ for Dunkers

[August 19]

• ★8 Psychoblaze Black Knight
• ★8 Lightning Revolt
• ★8 (Special) Tantalizing Toe Beans

Bug Fixes / Miscellaneous

• When out in the field only, a Monstie that has been given a gene that boosts attack power of one of the elements would change color depending on the Monstie’s elemental values. This has been fixed.
• Other miscellaneous bug fixes have been made.

Source: Nintendo Everything