やれやれだね(もーしわけない)
> Unicode® 12.1.0 (DRAFT)
> 2019 May NN
>
> Unicode 12.1 adds exactly 1 character
> - U+32FF SQUARE ERA NAME XXXXXX
> Version 12.1 adds that single character to enable software to be rapidly updated to support the new Japanese era name in calendrical systems and date formatting.