What's New? Official Change-log
Putting subscriptions on hold : Notification channels (v12.1): It's a smaller detail, but worth quickly mentioning. If you don't like seeing notifications for certain types of download activity from the Play Store, you'll be able to selectively filter it. There are new notification channels for pending, active, and finished downloads. Perhaps you will want to prevent the little animated icon from showing up for active and pending downloads, and just see when some have been finished.
Wi-Fi required? : Most of us have probably been prompted if we want to download certain things only over Wi-Fi, but I don't recall ever being told it would be a requirement for a download. However, that might be in the cards for some apps. A new line explains that a download may require Wi-Fi due to its size.
Note : Above change-log reshared here from Androidpolice
APK Compatibility Info :
» Version: 12.3.19-all  [PR] 218276083 (81231900)
» armeabi + armeabi-v7a + mips + mips64 + x86 + x86_64
» Package: com.android.vending
» 10,752 downloads
» 17.37 MB (18,217,739 bytes)
» Min: Android 4.1 (Jelly Bean, API 16)
» Target: Android 8.1 (Oreo, API 27)
Click on the below link to download the APK File
Google Play Store v12.3.19 APK