The first beta release of ownCloud 5 was just announced, with a release candidate due in the next week or so. I spoke with Karlitschek about the upcoming release of the latest open source offering from the project. According to him, there are three major elements of this release: integration, performance, and usability.

More speed with Go instead of PHP: ownCloud Infinite Scale is ready for use
Infinite Scale is a complete modernization of ownCloud 10, which has replaced PHP with Go for greater speed and efficiency.