Open Preprint Systems (OPS) is open source software developed by the Public Knowledge Project to manage a preprint server. Learn More
This project is tested with BrowserStack.
Read one of these guides to get started using OPS:
- Read the Admin Guide to learn how to install and configure the application from an official release package. Use this guide to deploy to production.
- Read the Getting Started guide to learn how to install the application from this source repository. Use this guide for local development.
Visit our Documentation Hub for user guides, tutorials, and technical documentation.
PHP 8.2 or later
The following list of platform requirements was generated by the Composer check-platform-reqs tool. The version numbers shown are examples and should not be interpreted as minimum requirements.
$ composer -d lib/pkp check-platform-reqs
Checking platform requirements for packages in the vendor dir
composer-plugin-api 2.6.0 success composer-runtime-api 2.2.2 success ext-bcmath 8.2.28 success ext-ctype * success provided by symfony/polyfill-ctype ext-curl 8.2.28 success ext-dom 20031129 success ext-fileinfo 8.2.28 success ext-filter 8.2.28 success ext-ftp 8.2.28 success ext-gd 8.2.28 success ext-hash 8.2.28 success ext-intl 8.2.28 success ext-json 8.2.28 success ext-libxml 8.2.28 success ext-mbstring * success provided by symfony/polyfill-mbstring ext-openssl 8.2.28 success ext-pcre 8.2.28 success ext-phar 8.2.28 success ext-session 8.2.28 success ext-simplexml 8.2.28 success ext-spl 8.2.28 success ext-tokenizer 8.2.28 success ext-xml 8.2.28 success ext-xmlwriter 8.2.28 success ext-zip 1.21.1 success ext-zlib 8.2.28 success lib-pcre 10.42 success php 8.2.28 success
MySQL 5.7.22+, MariaDB 10.3+ or PostgreSQL 9.5+
Linux, or one of the following: BSD, Solaris, Mac OS X, Windows
⚠️ If you have found a security risk or vulnerability, please read our security policy.
All issues should be filed at the pkp/pkp-lib repository. Feature requests can be made at our Community Forum. Learn more about how to report a problem.
This repository is a PKP community space. All activities here are governed by PKP's Code of Conduct. Please review the Code and help us create a welcoming environment for all participants.
Read the Contributor's Guide to learn how to make a pull request. This document describes our code formatting guidelines as well as information about how we organize stable branches and submodules.
This software is released under the the GNU General Public License. See the file docs/COPYING included with this distribution for the terms of this license.
Third parties are welcome to modify and redistribute OPS in entirety or parts according to the terms of this license. PKP also welcomes patches for improvements or bug fixes to the software.