RedmineInstall - Redmine1 Support of Ruby 2.7 and earlier has been ended by the Ruby community. See the official announcements for details: 2.4, 2.5, 2.6, 2.7. 2 Redmine 4.2 does not support Ruby 2.7.0 and 2.7.1. Use Ruby 2.7.2 or higher (see #31500#note-13). 3 Redmine >= 5.1.1 MySQL requires to change the transaction_isolation to READ COMMITTED in order to properly work MySQL_configuration. 4 On Redmine < 5.1.1 MySQL 5.
