change unity minimum version

hi all
I installed unity 2017.1 but I wish set the minimum version for my asset to unity 5.6.. how can I do this?
thanks in advance

 

Download 5.6 and generate the package using that version.
If you used functions/features that are exclusive to 2017 you will have to roll back to 5.6. TonyLi has described how to solve this dilemma before.

 

thanks @theANMATOR2b, but how can I mantain 2 unity version in my pc?

 

Install them in different directories or on different drives.

 

thanks @theANMATOR2b .. so I need to install 5.6.x, and reinstall 2017 to use as 'default' version

 

No need to reinstall anything. Just install the extra versions side by side with the one you already have.

 

the 2017 is under C:\Program Files\Unity, I install the 5.6 for example under C:\Program Files\Unity_5.6 but if I click a scene which version use? the latest installed?

 

You can change that in the "Open with" context menu in Explorer.

 

I open the Unity version which I want to use first, and then under file, open - open the project I want to open. This keeps me honest and knowing which version I'm using.

 

thanks mates!
this is the first time I publish on asset store and I'm a bit confused!