Release Notes: Users can now share issues and search results with each other. They can also mention a colleague with "@username" in an issue to call attention to it. Remote issue links connect JIRA issues to objects and pages in other Web applications. Activity streams show events from all linked Atlassian applications and third-party apps. New APIs are designed for developers who want to connect JIRA to other applications: new REST APIs to manage every facet of an issue, new APIs for remote issue links and activity streams, and a stable Java API for JIRA.
Release Notes: The ability to search status history using JQL, plus new Quick Search commands and JQL functions. Native support for LDAP and Active Directory, including nested groups. Share JIRA users and groups with other applications like Confluence and other JIRA instances. New Application Links establish bi-directional trusted connections between all Atlassian applications. Confluence App Links allow you to insert and create JIRA issues directly from the Confluence editor. A free workflow designer, a new Plugin Manager, in-place database upgrades, gadget subscriptions, REST API improvements, and more.