Thanks for all, who uses Simple Download Counter plugin for Joomla 3 and tries to do it better by sending error and fix messsages for me. Today it`s time to release version 1.3. New feature, fixed errors and download link in this article below 
Changelog from 1.2:
1. Thanks to Roberto for finding and fixing caching problem while using plugin with Joomla native caching enabled. Tested on 3.9.13 + Php 7.2.
2. Francesco asked to open download links in new browser tab. It`s usefull, for example, with pdf files, which your browser just opens.
3. Added showing MD5 Hash sum of the file.
If you have localized this plugin to your native language - send me LANG files. I`l use them in future plugin versions and give a link to your resourse. That`s all, thank you, good luck for your projects 
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Download file plg_content_sdc-v13.zip (8kb)Already downloaded 124 times
New plugin version available!
If you like this - share it with your friends. That would be the best "donation" for me!
Or just buy me a beer :-)