We're bringing a refreshed look and feel to many of our Server and Data Center products, and Bitbucket is following closely in Confluence's footsteps. This work is based on the new Atlassian design and will include things like the updated color palette, typography and icons. We are not currently working on any significant changes to navigation that you may have seen in our Cloud products.
We'll be implementing many of these design changes via an upgrade to AUI. The AUI Upgrade Guide has details of all the recent changes. In case you missed it, there have also been some changes to AUI licensing, see The license for AUI 7 is changing in our developer community, for more information.
We've aimed to minimize the impact to add-ons as much as possible, however as we move through Bitbucket releases, you should check your add-ons, and may want to update any non-AUI or non-product UI components to match the design guidelines.
We're super excited to be bringing you these changes, and know that customers are going to love the fresh, modern look.
Here's a sneak peek of what we're working towards. These designs are indicative, so things may change along the way.