Replace deprecated buttons on epic list view

ee/app/views/groups/epics/index.html.haml

@@ -25,7 +25,7 @@
       - if @can_bulk_update
         = render_if_exists 'shared/issuable/bulk_update_button', type: :epics
       - if can?(current_user, :create_epic, @group)
-        = link_to _('New epic'), new_group_epic_path(@group), class: 'btn btn-success gl-button', data: { qa_selector: 'new_epic_button' }
+        = link_to _('New epic'), new_group_epic_path(@group), class: 'btn btn-confirm gl-button', data: { qa_selector: 'new_epic_button' }
 
   = render 'shared/epic/search_bar', type: :epics
 

ee/app/views/shared/issuable/_group_bulk_update_sidebar.html.haml

@@ -7,7 +7,7 @@
     = form_tag [:bulk_update, group, type], method: :post, class: "bulk-update" do
       .block.issuable-sidebar-header
         .filter-item.inline.update-issues-btn.float-left
-          = button_tag _('Update all'), class: "gl-button btn update-selected-issues btn-info", disabled: true
+          = button_tag _('Update all'), class: "gl-button btn update-selected-issues btn-confirm", disabled: true
         = button_tag _('Cancel'), class: "gl-button btn btn-default js-bulk-update-menu-hide float-right"
       - if is_issue
         = render "shared/issuable/epic_dropdown", parent: group

ee/changelogs/unreleased/epic-list-deprecated-button.yml

+---
+title: Replace deprecated buttons on epic list view
+merge_request: 57873
+author:
+type: changed