Flotilla 1.7.3 (and 1.7.4) is out — this one is mostly quality of life improvements (with the addition of polls).
The big change protocol-wise is the addition of kind-9 wrapping of non-chat content types per a discussion with @Vitor Pamplona and @verbiricha. This prevents missing context when sending non-chat messages to NIP 29 rooms, but also allows for adding stuff like polls etc to chat. You can read the NIPs PR here: 
Much of the work was done by contributors coming to nostr via the Summer of Bitcoin program. So thanks to all of you!
Full Changelog:
* Add native share support for space invites
* Stop sending duplicate requests per room
* Add more robust thumbnail url generation
* Make space reordering discoverable with smoother drag animation
* Improve relay member list
* Add room mentions and clickable room/relay refs
* Support native clipboard image paste on mobile
* publish kind 9 quote after room content creation for cross-client interoperability
* Improve feed pagination logic and performance
* Support Aegis URL scheme for NIP-46 login
* Various UI and bug fixes
* Raise message size limit in chat
* Fix realtime updates for room members and admins
* Add video to calls
* Remove follow graph building
* Add start chat FAB
* Add drafts
* Redesign toast notifications
* Remove room/space leave indications
* Hide report badge for non-admin users
* Add polls
* Add search to recent activity page
* Fix notification badge on mobile nav
* Change audio devices in call
GitHub
Update C7 to only allow kind 9 messages in chat views by staab · Pull Request #2310 · nostr-protocol/nips
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Summer of Bitcoin
Summer of Bitcoin
A global, online summer internship program focused on introducing university students to bitcoin open-source development and design
