You can find the patch notes here.
Maintenence time: 2022.12.14 09:00-10:30 (GMT +9).
New limited banners
Two new limited banners will be added to the game and both will last for a week:
New event - Immortal Knight's Poem
The first event will be released and it's coming with its own map! The map will consist of 8 stages that will unlock over time and at the end, a special challenge stage awaits you.
Among the numerous rewards (materials, Revelation Stones, etc) obtainable in the event you will find the shards for Capet - the SSR Warrior! This means if you gather enough of them, you will get a free copy of him.
The event will last for 2 weeks.
New event - Mercenary's Path part 2
The second week of quests for the newbie event will be released and the top reward this time will be the Unique Weapon for Clarice!
A lot of new packs will become available in the shop that will allow you to buy Pull Tickets, Runes, and other goodies.
Nothing major was fixed with this patch, mostly some translation issues.