finally, Samsung considers to give one UI 2.1 to s9 and note 9 thanks for keeping up the fight,

https://r2.community.samsung.com/t5/Galaxy-S/finally-thank-you/td-p/4067798

i will keep the petition for long until we get one UI 2.1 to s9 and note 9 officially till then this will open petition for that time until we get the official one UI 2.1 to s9 and note 9 devices so please consider supporting for that much longer time. 

after active criticism Samsung finally considers to give the support for the one UI 2.1 to s9 and note 9 currently they are testing it hope for the high but that does not mean they cannot  cancel it ,