Click to see How to download the old version of the plugin from WordPress.org? original
I found out today that I want to download an old version of the plug-in for testing. WordPress is so familiar with it, I don’t know where to download it. After some searching, a solution was found.
As shown by the red arrow in the figure below, click the Advanced View link on the description page of a plug-in to open the download statistics page of the plug-in.
At the bottom of the page, there is a drop-down box for the version number. You can download the old version of the plug-in by selecting the version number you want to download.