OSClass 3.9.0 bulletin board script

Download for free the script of the bulletin board OSClass 3.9.0. New version.

- The first release after the official completion of the Osclass.
- Updated almost the entire external PHP library to the latest working library in a separate vendor directory.
- Fixed several bugs
- Removed the old code associated with the Osclass Market.
- Fixed compatibility with PHP 7.3.
- visit