These cumulative updates to Visual Studio 2013 include a variety of bug fixes and capability improvements.

If you already have Visual Studio Ultimate 2013 and just want Update 5, you can download it here.

Visual Studio Ultimate 2013 is the state-of-the-art development solution that empowers teams of all sizes to design, create, and modernize scalable applications that span devices and services. A simplified development solution helps all roles involved in a software project create the high-quality, mission-critical software your company depends on. Empower the team—including operations and trusted stakeholders—to continuously adapt to changes in shorter development cycles so that you can deliver consumer and business applications that exceed customers’ expectations.

Note: If you already have Visual Studio Ultimate 2013 (original release version) and run this download, only Update 5 is installed. If you don't have Visual Studio Ultimate 2013 and run this download, both Visual Studio Ultimate 2013 and Update 5 are installed. In either case, Visual Studio 2013 Language Packs (original release versions) can also be installed.

Support for Visual Studio 2013 is only provided on this current update, which is considered the Visual Studio 2013 Service Pack. The Visual Studio 2013 RTM version, released in November of 2013, will only be supported for one year after the release of this current update. For more information see the Microsoft Support Lifecycle Policy.

VS Release Notes
VS Known Issues
System Requirements
Compatibility