Every other application I know just closes the application window by pressing "Command + W". Not with HipChat, it is closing your most valuable latest chat...
This is actually the expected behavior of the shortcut. We've setup the shortcut keys to behave similar to what you might find in other tab-based apps (browsers, Terminal, etc). ⌘W closes the current tab and ⇧⌘W closes the window (although doesn't actually cause you to leave any of the rooms you're in).
A couple other users have mentioned that they'd prefer the alternative (where ⌘W closes the window), but it hasn't been something that risen to the top of our UX priorities so far. You can view / comment / vote on the suggestions at https://jira.atlassian.com/browse/HCPUB-2442 or https://jira.atlassian.com/browse/HCPUB-2000.
Incidentally, if you ever close a tab by accident, you can always use the ⇧⌘T shortcut (or File > Reopen Last Chat from the menu) to reopen it.
All good things come to an end - thanks to all our customers and partners who have been along the Hipchat and Stride journey with us. As of Feb 15th 2019, Hipchat Cloud and Stride have reached ...
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