| ⇢ | A | build.main.Main.notify_link_up_if_status() added | |
| ⇢ | A | build.main.Main.link_status_hook_link_up_timer() added | |
| ⇢ | A | build.tests.unit.test_main.TestMain.test_notify_li... added | |
| ⇢ | A | build.tests.unit.test_main.TestMain.test_link_stat... added | |
| A | ↘ | B | build.main.Main.add_links() got worse | 
| C | ↗ | A | build.main.Main.handle_link_up() improved |