After which you'll only receive stable updates going forward. (techtimes.com)
Since then, users have been waiting for the global version of the ROM, and then subsequently for a more stable update. (xda-developers.com)
Xiaomi has now released the MIUI 9 Global Stable update for the Redmi Note 4 Snapdragon variant (also known as the Redmi Note 4X in some markets). (xda-developers.com)