Update Versus Upgrade Joke

Text on the meme

What is the difference between update and upgrade? you can downgrade but not downdate

What it means

A Twitter exchange asks about the difference between an update and an upgrade. The punchline is the deliberately incorrect word “downdate,” contrasting with the real word “downgrade” for a silly linguistic joke.

Objects

two men / два мужчины Twitter post / публикация в Twitter profile photos / фотографии профиля glasses / очки beard / борода smiling man / улыбающийся мужчина text message / текстовое сообщение social media interface / интерфейс социальной сети