Help for Aimeos

I want to try to install aimeos "2020.4"

but the extension creator max version only "2019.x"

is it OK to use that extension version ?

I already solved it, Unclear documentation should be trouble for the newbie user of this framework.(i also found it on other aimeos documentation) I follow the document here https://aimeos.org/docs/Developers/Create_an_extension at the first time i thought some of the text was just "explanation...

Dear aimeos, i already create my own extension, then registering it on composer.json "autoload": { "classmap": [ "ext/<yourext>/lib/custom/src", "ext/<yourext>/controller/common/src", "ext/<yourext>/controller/frontend/src", "ext/<yourext>/contr...