| ⇢ | F | User_Agent_Info added | |
| ⇢ | F | Error_Handler added | |
| ⇢ | A | Broken_Token added | |
| ⇢ | A | Label_Control added | |
| ⇢ | A | Jetpack_Sync_Debug_Helper added | |
| ⇢ | A | Device_Detection added | |
| ⇢ | A | Test_Device_Detection added | |
| ⇢ | A | Autoloader_Handler added | |
| ⇢ | A | Classes_Handler added | |
| ⇢ | A | Files_Handler added | |
| ⋮ | view more | ||
| F | ↗ | B | Jetpack_User_Agent_Info improved |
| A | ↛ | className_ABC removed | |