Hyderabad, Aug. 5 -- WhatsApp announced five new group chat features this week, and one of them will be felt by every user who has ever muted a noisy family or housing-society group. Here is what is new, followed by the quieter features, some launched this year, that matter more for your privacy and safety.

WhatsApp new group chat features

@all mentions: Typing "@all" in a message now notifies every member of the group, including those who have muted it. Useful for genuinely time-sensitive messages; irritating in the wrong hands. WhatsApp has built in two limits: in groups of more than 32 people, only admins can use it, and you can mute @all alerts separately in notification settings if someone overuses it.

Poll deadlines: Polls in gro...