The ruby-net-ldap project provides LDAP support for the Ruby programming language. They have just released version 0.17.0 of the library, which appears to include the following changes over the previous 0.16.3 release:

• Added support for a client-side recursive delete option that is an alternative to the server-side subtree delete control
• Fixed an issue with password encoding in which the base64 encoder could insert line breaks in long values
• Added support for an “==” operator for comparing entries
• Removed a deprecated “connection refused” error