The new Bitbucket experience coming. Here is how it will impact your cloud add-on.
#1
Items located at org.bitbucket.repository.actions (the repository actions menu) will now display in the create menu (the plus icon) when the user is in a repository context.
Old way:
New way:
#2
Still working to add support for module: https://developer.atlassian.com/bitbucket/modules/profileTabs.html
Old way:
New way:
#3
Deprecated location: org.bitbucket.appswitcher.navlink
