Extension point discovery mode can be enabled by providing the ?clientside-extensions URL parameter on the page. Once the page is loaded, you’ll see the blue, interactive extension points.

Affected Client Web Fragments

Clone Dialog
- bitbucket.web.repository.clone.dialog.options
Empty Repository
- bitbucket.empty.repository.instructions
Branch Layout
- bitbucket.branch.layout.actions.dropdown
Commit
- bitbucket.commit.related-entities
Comments
- bitbucket.comments.actions
- bitbucket.comments.info
- bitbucket.comments.extra
Pull Request
- bitbucket.pullrequest.action
- bitbucket.pull-request.table-column.before
- bitbucket.pull-request.table-column.after
- bitbucket.ui.pullrequest.nav.tab
Branch list
- bitbucket.branches.extras
- bitbucket.branch.list.actions.dropdown
Ref Sync plugin
- bitbucket.refsync.diverged.actions

Mapping of Client Web Fragments to New Extension Points

View	Client Web Fragments	New Extension Points	Status
Branch List View	Table Columns: `bitbucket.branches.extras` `pull-requests-column` `ahead-behind-column` `last-updated-column` `build-status-branch-list-col` `branch-list-jira-issues-col` Actions: `bitbucket.branch.list.actions.dropdown`	`bitbucket.ui.branches.table.column.before` `bitbucket.ui.branches.table.column.after` `bitbucket.ui.branches.actions`	Migrated
Branch Layout Views Shared between pages: • File browser • Commits • Source view • Branches list	`bitbucket.branch.layout.actions.dropdown`	`bitbucket.ui.branch.layout.actions.dropdown`	Migrated
Pull Request List Page	`bitbucket.pull-request.table-column.before` `bitbucket.pull-request.table-column.after`	`bitbucket.ui.pullrequest.table.column.before` `bitbucket.ui.pullrequest.table.column.after`	Migrated
Pull Request Page	`bitbucket.pullrequest.action` `bitbucket.ui.pullrequest.nav.tab`	`bitbucket.ui.pullrequest.action` (existing) `bitbucket.ui.pullrequest.nav.tab`	Migrated
Commit	`bitbucket.commit.related-entities`	`bitbucket.ui.commit.details.summary`	Existing
Comments	`bitbucket.comments.actions` `bitbucket.comments.info` `bitbucket.comments.extra`	`bitbucket.ui.pullrequest.comment.extra`	Existing
Repository Clone Dialog	`bitbucket.web.repository.clone.dialog.options` `mirroring-clone-urls`		Removed
Empty Repository Page	`bitbucket.empty.repository.instructions` • `welcome-mat-empty-new-to-git` • `welcome-mat-empty-git-repository-read` • `welcome-mat-empty-git-repository-clone` • `welcome-mat-empty-git-repository-write` • `stash-welcome-mat-empty-git-repository-ssh-clone`		Removed
Ref Sync Plugin	`bitbucket.refsync.diverged.actions` • `merge` • `rebase` • `discard`		Removed

New Extension Points API

Extension Point	Supported Types	Context Values
`bitbucket.ui.branches.table.column.before`	button link modal panel	`currentUser` (object) `repository` (object) `baseRef` (object) `branch` (object)
`bitbucket.ui.branches.table.column.after`	button link modal panel	`currentUser` (object) `repository` (object) `baseRef` (object) `branch` (object)
`bitbucket.ui.branches.actions`	button link modal	`currentUser` (object) `repository` (object) `baseRef` (object) `branch` (object)
`bitbucket.ui.branch.layout.actions.dropdown`	button link modal	`atRevisionRef` (object) `canCloneRepository` (boolean) `isRepositoryEmpty` (boolean) `currentUser` (object) `hasRepoFeatureArchive` (boolean) `hasRepoWrite` (boolean) `hasRepoFeatureCompare` (boolean) `repository` (object) `showFlag` (function)
`bitbucket.ui.pullrequest.table.column.before`	button link modal panel	`currentUser` (object) `project` (object) `repository` (object) `pullRequest` (object)
`bitbucket.ui.pullrequest.table.column.after`	button link modal panel	`currentUser` (object) `project` (object) `repository` (object) `pullRequest` (object)
`bitbucket.ui.pullrequest.nav.tab`	panel	`currentUser` (object) `project` (object) `repository` (object) `pullRequest` (object) `conditions` (object) `mergeable` (boolean)

For more details, see the developer documentation.