Oracle VM VirtualBox 5.2 delivers security updates and cumulative bug fixes since the previous 5.1 major release.
Notable enhancements in this release:
All enhancements and fixes can be found in the official Oracle VM VirtualBox change-log file.
Oracle VM VirtualBox Supported Upgrade Path
Oracle VM VirtualBox can be easily upgraded from older releases, like 4.x or 5.x, to the 5.2 release on all platforms.
Oracle VM VirtualBox Product Support
All "Host" and "Guest" platforms supported can be found at this link.
Oracle VM VirtualBox Software Download
Oracle VM VirtualBox GA releases are available at oracle.com.
Oracle VM VirtualBox Test-build release can be downloaded at virtualbox.org.
Oracle VM VirtualBox Overview
To enable organizations and developers to more easily and flexibly create and deploy on-premises and cloud applications, Oracle has announced that Oracle VM VirtualBox 5.2, the latest release of the world’s most popular free and open source, cross-platform virtualization software, is generally available today.
A key tool for developers and users creating cloud and local applications without the overhead of using a full server environment, Oracle VM VirtualBox runs on standard x86 desktop and laptop computers. It allows users to set up multi-platform virtual machine environments for software development, testing, and general purpose operating system (OS) virtualization, with optional runtime encryption. Software engineers can develop for cloud technologies such as Docker and OpenStack from within Oracle VM VirtualBox VMs directly on their Windows, Mac OS X, Linux, and Oracle Solaris machines, making it easier to create multi-tier applications with just a standard laptop.
Oracle VM VirtualBox also enables users to create and update virtual machines locally, including the OS and applications, and then package them into an industry standard file format for easy distribution and cloud deployment in conjunction with Oracle VM Server, or other server virtualization solutions.
Oracle VM VirtualBox allows users to run nearly any standard x86 OS to run applications that are not available natively on their systems.
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Further development utilities
to upgrade you only need to run the installation of updated release; the same will manage the upgrade of software components installed.
Consider that actually latest release available is 5.2.10.
Thanks
Simon