Short summary: Weapons exchange tickets will be usable to exchange weapons for the new class only after 30 days of its initial release date. Everyone who already bought tickets from cash shop in preparation for Shai (starting from 2019.06.08) can either wait 30 days after its release or return them back for pearls (You can apply for return until 2019.06.26 Maintenance).
Displayed New User Login Reward is from 2019.05.29 event.
No ETA for challenges end.
Special Login Bonuses is also a separate event that can be found below.
Period: 2019.06.13 00:00 - 2019.07.17 23:59
Period: 2019.06.12 Maintenance - 2019.07.17 Maintenance
Period: 2019.06.12 Maintenance - 2019.06.19 Maintenance
Period: 2019.06.13 00:00 - 2019.06.26 23:59
I've explained this event in 22.05.2019 Unofficial Notes.
Period: 2019.06.12 Maintenance - 2019.06.26 Maintenance
Period: 2019.06.12 Maintenance - 2019.06.19 Maintenance
2019.06.12 Maintenance - 2019.06.14 16:59:
Combat EXP +50%
Skill EXP +10%
2019.06.14 17:00 - 2019.06.16 23:59:
Combat EXP +150%
Skill EXP +30%
2019.06.17 00:00 - 2019.06.17 11:59:
Combat EXP +200%
Skill EXP +40%
2019.06.17 12:00 - 2019.06.19 Maintenance:
Combat EXP +50%
Skill EXP +10%
Changes
Weight 250/300LT Sale Period: 2019.06.12 Maintenance - 2019.07.03 Maintenance
NEW Special Coupon & NEW Life selection Packages Sale Period: 2019.06.12 Maintenance - 2019.06.19 Maintenance