Converse.js Browser based XMPP chat client JavaScript Browser Linux macOS Windows 0.8.2 2.0.1 7.0.0 4.0.0 0.8.5 partial advertises caps but no caching partial basic string field sub-type usage 6.0.0 5.0.0 0.8.2 0.8.0 4.0.0 0.9.5 4.0.5 4.1.1 partial 0.9.4 4.0.0 4.0.0 3.3.3 4.0.0 8.0.0 5.0.0 6.0.0 6.0.0 8.0.0 8.0.0