Hover Events

    The hoverEvent field has been renamed to hover_event
    The legacy value field (which was parsed from a rendered text component) is no longer supported
    For the show_text action:
        The contents field has been renamed to value
        e.g. {action:'show_text',contents:'Hello world'} becomes {action:'show_text',value:'Hello world'}
    For the show_item action:
        The contents field has been inlined
        e.g. {action:'show_item',contents:{id:'minecraft:stick',count:2}} becomes {action:'show_item',id:'minecraft:stick',count:2}
        If contents was specified only as an item id, it is replaced with the full format and inlined
        e.g. {action:'show_item',contents:'minecraft:stick'} becomes {action:'show_item',id:'minecraft:stick'}
    For the show_entity action:
        The contents field has been inlined
        The id field has been renamed to uuid
        The type field has been renamed to id
        e.g. {action:'show_entity',contents:{id:[I;0,0,0,0],type:'minecraft:pig'}} becomes {action:'show_entity',uuid:[I;0,0,0,0],id:'minecraft:pig'}

Click Events

    The clickEvent field has been renamed to click_event
    For the open_url action:
        The value field has been renamed to url
        The click event will no longer parse if not a valid URI with either https:// or http:// schemes, instead of simply not working
        e.g. {action:'open_url',value:'https://minecraft.net'} becomes {action:'open_url',url:'https://minecraft.net'}
    For the run_command action:
        The value field has been renamed to command
        The click event will no longer parse if the command contains disallowed characters, instead of simply not working
        It is no longer required that the specified command field has a / prefix
        e.g. {action:'run_command',value:'/tp @e @s'} becomes {action:'run_command',command:'/tp @e @s'}
    For the suggest_command action:
        The value field has been renamed to command
        The click event will no longer parse if the command contains disallowed characters, instead of simply not working
        e.g. {action:'suggest_command',value:'/help'} becomes {action:'suggest_command',command:'/help'}
    For the change_page action:
        The value field has been renamed to page
        The page value now requires a positive integer instead of a string
        e.g. {action:'change_page',value:'1'} becomes {action:'change_page',page:1}
    The copy_to_clipboard format is unchanged