3 different Intellij IDEA data folders

Hi,

after upgrate to IntelliJ IDEA 2020.2 I have 3 different folders:

c:\users\<user>\.IntelliJIdea2019.3 -> 5 GB

c:\users\<user>\AppData\Local\JetBrains\IntelliJIdea2020.1 -> 10 GB

c:\users\<user>\AppData\Local\JetBrains\IntelliJIdea2020.2 -> 4 GB

why so much foldes? Can the first two be deleted?

Regards,

Rafal