Redmi 5A - No Android Oreo update?

There is no news that the Xiaomi Redmi 5A will get Android Oreo update anytime soon. But a new update was up today, V9.2.1.0.NCKMIEK which is a stable ROM. Incremental update size is 259MB. The full Recovery ROM can be download from here.

This update offers a long list of fixes and optimization.

MIUI 9 - V9.2.1.0.NCKMIEK changelog:

Highlights
New - New display formats for update logs in Updater (07-25)
New - Mi Mover, supports data migration restarting. During migrating data to the new phone, device hotspot connection will be restored automatically in case of interruption to complete the date migration (10-25)
New - Simplified the UI (10-31)

Optimization - Simplified and improved the design of the virus scan result page (09-07)
Optimization - Hide free and incompatible themes in the list of the purchased items (10-10)
Optimization - "Add to favorites" icon adjustments (10-24)

System
New - Distance sensor dynamic calibration function, to ensure that black screen appears correctly (10-26)
Fix - Apps stopped working in the background (06-24)

App Lock
New - App lock supports hiding messages from selected apps (10-31)

Phone
Optimization - Vibration no longer affects the features which reduce ringer volume when the phone is lifted or flipped to silence (10-10)

Messaging
Fix - Messages with one-time passwords disappeared (09-07)

Lockscreen, Status Bar, Notification Bar
Optimization - Adjusted time for tapping the Lockscreen notifications (10-24)

Home screen
Optimization - Multiple themes supported on the clock widget (10-19)
Optimization - Move app icons into a folder easier (10-19)
Optimization - Adding widgets to an empty spot with a single tap (10-31)

Themes
Optimization - Updated Peach blossom and Asphalt themes (09-14)
Optimization - Hide free and incompatible themes in the list of the purchased items (10-10)
Optimization - "Add to favorites" icon adjustments (10-24)
Fix - Previews in recent wallpapers rotated (09-20)

Gallery
Fix - Image has been compressed multiple times (10-19)

Backup
New - Mi Mover, supports data migration restarting. During migrating data to the new phone, device hotspot connection will be restored automatically in case of interruption to complete the date migration (10-25)
Fix - Mi Mover can't continue to migrate data after the network connection is interrupted and restored (10-25)
Fix - Mi Mover can't migrate all apps to the new phone (10-25)

Settings
Optimization - Introducing button and gesture shortcuts (09-15)

Mi Account
Optimization - Reduced the number of push notification when the user is signed out (10-30)

The Android security patch level has been updated to December patch from the October patch.

Problem with auto-brightness?

For users who are having problems with auto-brightness, there is a method to fix that. @riNKu090 on the MIUI forums has a solution here on the MIUI forums.