Your server must meet the following requirements in order to run the 3.3 LTS release of OJS, OMP or OPS.
Older Versions: Check the README.md file located in the download package of the version you want to install.
In order to run, upgrade and troubleshoot your installation, we recommend a web server environment with the following:
.htaccessor similar technique to block web access during upgrades
If your server meets these requirements, learn how to download the software.