Implemented on platform Apache Wave (https://incubator.apache.org/wave/):

New structure of data store:

• creation of snapshots and operation history for documents
• aggregation of operations during writing

New Client-Server protocol:

• opening the wave with displaying changes since previous opening
• reopening the wave after connection is lost
• error diagnostics
• uploading blips into visible area
• data deserialization on demand

Conversation renderer:

• dynamic rendering only visible screen area
• highlighting of deleted blips

Blip editor:

• draft mode

Miscellaneous:

• tags support
• archiving of waves
• store of searches
• store of contacts

Project leader Kirill Kostyuchenko. Sponsors Kirill Kostyuchenko and Nikolay Liber.

Developers: Andrew Kaplanov, Denis Konovalchik, Nikolay Liber.