Heh, one thing I love about Jira is all the UI redesigns. At some point I was using 3 Jiras for the same project - a public open source one, an internal company

Heh, one thing I love about Jira is all the UI redesigns. At some point I was using 3 Jiras for the same project - a public open source one, an internal company one, and another one shared with a customer. All 3 were different (but relatively recent) versions and all 3 had considerably different UI. They really ought to fire all the PMs who justify their existence by moving menus around.