Versioning not working when uploading a doc of same name

[SarahTurner]

Hi, 

Please can someone help - this must be something simple.  I have checked versioning is switched on my doc library in Sharepoint online.

I have a document (powerpoint deck) provided by 3rd party company and they keep sending updated versions.

I have the first version saved in my doc library.  I have renamed their 2nd version to be the same file name as the one in my doc library and I have tried uploading it.  I get a message saying 'a file with this name already exists.  Would you like to replace the existing one?' - well no, not really... what i want to do is add it as a version to the original file.

What am i doing wrong?

[#2]

Then you are fine, when you confirm the replacement SharePoint is going to automatically generate a new version of your file

[#3]

@Juan Carlos González Martín Brilliant thanks - is there anyway of naming a version or retrospectively adding comments?

[#4]

Is there any way to make this go automatic? (as in: not having to manually clicking the button to make a new version)