Hi! Thanks for upgrading Psi! Maybe this deserves a separate bugreport, but I'll try replying to this one first.
Upgraded Psi is working fine, but actually connecting to any account required me to install libsasl2-modules-gssapi-mit which provides a libscram.so file that Psi needs to connect to basically any XMPP server nowadays. If you follow the dependency chain, one of the dependencies of the dependencies *suggests* (not even recommends) it, but also giving the option of installing libsasl2-modules-gssapi-heimdal instead (this one's not useful for this). I really thing libsasl2-modules-gssapi-mit should be a hard dependency for Psi. Another, smaller issue: Psi apparently suggests libqca2-plugin-gnupg, which is a transitional package to the qt4-based qca plugins. The dependency on the qca-qt5 plugins is already there. Thanks! o/