Plone 4.0 (Sep 01, 2010)

This release is no longer supported! If you are using this release, please upgrade to a newer version if possible.

Plone 4 is focused on improving the speed, manageability and appearance of Plone while upgrading the underlying infrastructure in preparation for Plone 5. This version includes significant performance improvements, a new theme, search and indexing improvements, group dashboards, reduced memory footprint, improved handling of large files & media, faster folder implementation, better management of users and groups, dynamic forms using jQuery tools, and an improved first-run and upgrade experience.

For additional information about this project, please visit the overview page .

There may be hotfixes applicable to this release. Always check the Plone Hotfix Page before production deployment.

Available downloads

Windows installer (Windows 2000, 2003, XP, Vista, 7)

For Windows (32.0 MB)

Mac OS X 10.5/10.6 (Intel) Installer

For Mac OS X (32MB)

Unified Installer for Linux/BSD/OS X/UNIX/Solaris (compiles and installs Python 2.6, Zope 2.12 and Plone 4.0 plus dependencies for you)

For Linux/BSD/Unix (36.4MB)

Release Notes

State	Final release
License	GPL
Release Manager	Eric Steele
Released	2010/09/01 00:00:00 UTC

Windows Installer Issue

If the Zope/Plone instance fails to start:

Find the running process id by opening the .pid file within your instance's var/ directory.
Open the Windows Task Manager and stop the running process with the above identifier.
Delete all .pid and .lock files in your instance's var/ directory.
Start your instance.