This page lists the applications that we have retired. These applications should not be used. They will no longer receive security updates or technical support.
PKP has a proven track record of supporting long-term, sustainable publishing solutions. Over the last 20 years, our software has gone from a curious experiment to the backbone of publishing ecosystems around the world. And that is down to our commitment to the long-term development of our software and the community of scholars and publishers who rely on it.
For that reason, it is always difficult for us to retire one of our applications. However, in some cases, we must take the decision to end support. When we do this, we do so in order to ensure that we can focus our limited resources on our most important applications.
Open Conference Systems (OCS)
OCS was a conference management system to collect and publish speaker abstracts. It is no longer supported and is not being actively developed.
System Requirements
- PHP 4.2x – 5.x (Will not run on versions greater than 5.x)
- MySQL 3.23.23-4.x, PostgreSQL 7.1, 8.x
- Apache >= 1.3.2 or >= 2.0.4
- Linux, MacOS or Windows
Last Release
- Download Open Conference Systems 2.3.6 (.tar.gz) (5908 KB)
[Security issue #5871] - Recommended patches – ocs, pkp-lib
- Upgrading from an older version to OCS 2.3.6? Please read this.
- Download patch from past OCS versions:2.3.5 2.3.4 2.3.3-1 2.3.3 2.3.2 2.3.1 2.3 2.1.2-1 2.1.2 2.1.1-2 2.1.1-1 2.1.1 2.1.0-1 2.1 2.0
All Releases
- Download Open Conference Systems 2.3.5 (.tar.gz) (5904 KB)
- Download Open Conference Systems 2.3.4 (.tar.gz) (5164 KB)
- Download Open Conference Systems 2.3.3-1 (.tar.gz) (5164 KB)
- Download Open Conference Systems 2.3.2 (.tar.gz) (5164 KB)
- Download Open Conference Systems 2.3.1 (.tar.gz) (5164 KB)
- Download Open Conference Systems 2.3 (.tar.gz) (3216 KB)
- Download Open Conference Systems 2.1.2 (.tar.gz) (3506 KB)
- Download Open Conference Systems 2.1.1 (.tar.gz) (3216 KB)
- Download Open Conference Systems 2.1 (.tar.gz) (2968 KB)
- Download Open Conference Systems 2.0 (.tar.gz) (1512 KB)
- Download Open Conference Systems 1.1.7 (.tar.gz) (408 KB)
- OCS 1.1.6 (.tar.gz) (408 KB)
- OCS 1.1.5 (.tar.gz) (408 KB)
- OCS 1.1.4 (.tar.gz) (394 KB)
- OCS 1.1.3 (.tar.gz) (387 KB)
- OCS 1.1.2 (.tar.gz) (385 KB)
- OCS 1.1.1 (.tar.gz) (384 KB)
- OCS 1.1 (.tar.gz) (385 KB)
- OCS 1.0 (.tar.gz) (401 KB)
- OCS 1.0 (.zip) (645 KB)
Open Harvester Systems (OHS)
OHS was a metadata indexing system to create a searchable index of metadata from OAI-compliant archives. It is no longer supported and is not being actively developed.
System Requirements
- PHP 4.2x – 5.x (Will not run on versions greater than 5.x)
- MySQL 3.23.23-4.x, PostgreSQL 7.1, 8.x
- Apache >= 1.3.2 or >= 2.0.4
- Linux, MacOS or Windows
Last Release
Download Open Harvester Systems 2.3.2 (.tar.gz) (3678 KB) (March 16, 2012)
All Releases
- Download Open Harvester Systems 2.3.1 (.tar.gz) (3444 KB)
- Download Open Harvester Systems 2.3.0 (.tar.gz) (2564 KB)
- Download Open Harvester Systems 2.0.1 (.tar.gz) (876 KB)
- Download Open Harvester Systems 2.0.0 (.tar.gz) (788 KB)
- Download Open Harvester Systems 1.0.1 (.tar.gz) (124 KB)
- Download Open Harvester Systems 1.0 (.tar.gz) (123 KB)