The new UI with Bitbucket Server that came with an upgrade to 5.10 was not welcome and caused many negative feedback from our users. Some are so unhappy with the change that they demand we switch back to the Bitbucket Server 5.9.1 release that we used before the switch.
The main point of critique is the wasted space that came with the sleek font and abnormaly sized icons. Some of the icon choices are also not very straightforward and seem to fit the space reserved, e.g. the Pull Request "Approve", "Needs work" actions. Other not so important details like profile pictures are now twice as big as important details like the check or X for a successful or failed build.
Is there going to be or is there already a way to revert back to old UI like in JIRA?
(In Jira Server it seems to be possible to get the old UI back through a profile setting)