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OpenACS (Open Architecture Community System) is a toolkit for building scalable, community-oriented web applications. OpenACS is the foundation for many products and websites, including the .LRN e-learning platform. OpenACS is open source and is available under the GNU General Public License.

Why use OpenACS?

OpenACS is unique in the breadth of services it offers developers and administrators. Millions of dollars and decades of developer time have gone into the maturation of OpenACS.

You can read the technical reasons to use OpenACS.

How do I install OpenACS?


The installation documentation contains all the necessary steps to install OpenACS on a large variety of systems. There is also a Windows Installer and other packaged installations openacs-system-install. Also Check the installation requirements before installing. The current stable release is OpenACS 5.9.0 (cvs aliases).

How do I work with OpenACS?


You can start by reading the documentation, specifically tips on customizing, the developer's tutorial, and
the FAQs. There is a OpenACS Wiki and a list of packages that extend OpenACS.

For professional help, contact one of the OpenACS companies.

OpenACS Community

One of the strengths of the OpenACS project is the community surrounding it:

 

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OpenACS 5.10.1 final released

We are proud to announce the release of OpenACS 5.10.1 [1]. The release of OpenACS 5.10.1 contains the 100 packages of the oacs-5-10 branch. These packages include the OpenACS core packages, the major application packages (e.g., most of the ones used on OpenACS.org), and DotLRN 2.10.1. The release is probably the most secure and with the most tested code since ever. Altogether, OpenACS 5.10.1 differs from OpenACS 5.10.0 by the following statistics

3038 files changed, 1291141 insertions(+), 354533 deletions(-)
These changes were contributed by 8 committers
  • Antonio Pisano
  • Gustaf Neumann
  • Günter Ernst
  • Héctor Romojaro
  • Michael Aram
  • Raúl Rodríguez
  • Sebastian Scheder
  • Thomas Renner

and additional 8 patch/bugfix providers

  • Felix Mödritscher
  • Frank Bergmann
  • Franz Penz
  • Josue Cardona
  • Keith Paskett
  • Markus Moser
  • Marty Israelsen
  • Monika Andergassen
all sorted by the first names. In terms of changes, the release contains the largest amount of changes of the releases in the last 10 years. The packages with the most changes are acs-tcl, acs-templating, xowiki, xowf, acs-automated-testing, acs-admin, and xotcl-core. For a partial summary of changes, please check the release notes [2], for the more detailed list of changes since the release of OpenACS 5.10.0, see [3]. Many changes/enhancements of the application packages are just contained in the detailed changelog. All packages of the release were tested with PostgreSQL 16.* and Tcl 8.6.*.

Many thanks to everybody who made this release possible!

[1] https://openacs.org/projects/openacs/download/
[2] https://openacs.org/doc/release-notes
[3] https://openacs.org/changelogs/ChangeLog-5.10.1

Published on Sep 03, 2024

Schedule and Slides from the OpenACS and Tcl / Tk Conference 2024

The presentation videos and slides from the OpenACS and Tcl/Tk Conference 2024 are now available!

https://openacs.org/conf2024/info/schedule

Published on Jul 15, 2024

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