From the mtc notice that dragonSword001 translated:
January 20th Updates Notice
βΌ Renewal of rainbow medal exchange.
Scheduled implementation date: After maintenance on Monday, January 27th, 2020.
Regarding the renewal of the exchange list that can be exchanged with rainbow medals, we will now inform you of the new exchangeable contents on January 27th.
Lineup of rainbow medal exchange after renewal
γ» New Hit attribute β 6 characters βYukihanasouβ (Euphorbia)
γ» New Magic attribute β 6 characters "Furosou" (Crane's Bill)
γ» New β 6 flower memory 2 types
γ» Awakening Dragon Senchi
γ» Rainbow Skillbloom
- Rainbow Dressbloom
-Gold Skillbloom
γ» Gold Dressbloom
γ» β 6 Aqua Shadow fragment
γ» β 5 Aqua Shadow Fragment
γ» β 4 Aqua Shadow Fragment
γ» β 3 Aqua Shadow Fragment
γ» β 2 Aqua Shadow Fragment
γ» 2nd Affection heart
γ» Affection Medal βSilverβ
Each of the above exchange lineups has an exchange limit and expiration date.
For lineups other than β 6 characters and β 6 flower memory, replacement restrictions will be reset at the time of maintenance.
β 6 character and β 6 flower memory exchange deadline.
The replacement deadline will be longer than other lineups.
Also, the exchange limit will not be reset when the exchange period has expired.
β For 6 character illustrations, β 6 flower memory names and illustrations, they will be announced at "Flower Knight Girl Official Knights Council #18" on January 26th.
β 6 characters other than the above and β 6 flower memory will be added and updated sequentially.
* The above β 6 characters, β 6 flower memory,will not be added to any Gacha lineup.
* Reproduction of β 6 characters and β 6 flower memories after the exchange deadline is under consideration.
* The above β 6 characters are not eligible for Popularity Voting in Ten Thousand Flowers Rainbow festival.
* Lineups other than the above may be added or updated.
* Due to the above lineup change, Skill and Dress blooms for additional characters will be at the flower stone exchange.
* The maintenance will end on February 3 (Mon).
* The β 6 characters in the lineup as of January 20th are not eligible for replacement after maintenance on Monday, January 27th.
βΌ Update of additional character appearance rate up gacha.
Scheduled implementation date: February 3rd, 2020 (Monday) after maintenance.
The appearance probability of the implemented characters are increasing at the same time as the start of a new event. The following update is planned for Additional character appearance rate up gacha.
γ» The appearance probability of β 6 characters has been adjusted upward. The probability after an upward adjustment is planned to be 2%.
γ» When the gacha is played a certain number of times, we plan to introduce a function to obtain a confirmation on β 6 pickup frames.
This function uses the pickup of the corresponding gacha. It will be implemented each time it is updated.
In addition, we plan to add bonuses before the final confirmation of β 6 pickup slots.
Details of the function will be announced at a later date.
βΌ β 6 character appearance rate adjustment in premium gacha.
Scheduled implementation date: February 3rd, 2020 (Monday) after maintenance.
The following updates are planned for Premium Gacha.
γ» The appearance probability of β 6 characters has been adjusted upward.
The probability after the upward adjustment is planned to be 2%.
* Additional character appearance rate up gacha, and the operation of Premium Gacha will remain as it is until the update is performed.