Redmine currently releases a new version every 6 months, and these releases are considered very usable and stable. It is recommended that the majority of users install the proper point releases of redmine.

Ghostscript (to enable thumbnails generation for PDF attachments in Redmine 4.1 or later).

ImageMagick (to enable Gantt export to PNG image and thumbnails generation).

See RedmineRepositories for SCM compatibility and requirements. svn), for repository browsing (must be available in your PATH).

SQLite 3 (not for multi-user production use!).

You can set it using: ALTER DATABASE 'redmine_db' SET datestyle='ISO,MDY'

make sure your database datestyle is set to ISO (Postgresql default setting).

Redmine does not support JRuby because activerecord-jdbc-adapter and loofah do not support Rails 4.2 or later.

See the official announcements for details: 2.3, 2.4, 2.5.Ģ Redmine 4.2 does not support Ruby 2.7.0 and 2.7.1. The required Ruby versions for a given Redmine version are: Redmine versionġ Support of Ruby 2.5 and earlier has been ended by the Ruby community. Redmine should run on most Unix, Linux, macOS and Windows systems as long as Ruby is available on this platform. You can still read the document for older versions: 3.x, 1.4.x - 2.6.x, 1.3.x Requirements ¶ Operating system ¶

This is the installation documentation for Redmine 4.0 and higher.

Step 6 - Database schema objects creation.

Step 5 - Session store secret generation.

Additional dependencies (Gemfile.local).

Step 3 - Database connection configuration.

Step 2 - Create an empty database and accompanying user.

Step 7 5.6