We reported last week that Private Replies had come exclusively to the WhatsApp for Windows Phone beta. The feature let users reply in private chat to messages in group chat and was earlier only available on WhatsApp Web and not the iOS or Android versions of the app.
Only a day later WhatsApp pushed out another update which disabled the feature, suggesting it was included in error.
Now in the latest update, the feature has returned to WhatsApp Beta for Windows Phone, version 2.17.348.0.
The feature still seems to be in development, with issues such as Private Replies being available even in 1:1 chats, according to WABetaInfo, but it still appears to be Windows Phone exclusive.
The private reply feature has some problems in Windows Phone: you can notice this option also in chats, but it should appear in groups only.
This is absolutely normal seen that WhatsApp is still developing the option.
Wait next updates ?
— WABetaInfo (@WABetaInfo) December 21, 2017
The current version of the WhatsApp beta app for Windows Phone is available from the store link below.