No specific info about version 4.5. Please visit the main page of Slack on Software Informer.
Open source team chat Slack alternative with cloud support.
It enables you to send and receive messages from your computer.
This version is intended for network login script usage.
Chat with your team or community in a highly secure environment.
On-demand export of GroupWise messages to portable XML files.
With this program you can create time plans for teams.