Microsoft today said it is joining the Linux Foundation as a high-paying Platinum member. Linux Foundation executive director Jim Zemlin said, "This may come as a surprise to you, but they were not big fans," describing the two's previous relationship. From a report on TechCrunch: The new Microsoft under CEO Satya Nadella, however, is singing a very different tune. Today's Microsoft is one of the biggest open source contributors around. Over the course of just the last few years, it has essentially built Canonical's Ubuntu distribution into Windows 10, brought SQL Server to Linux, open-sourced core parts of its .NET platform and partnered with Red Hat, SUSE and others. As Zemlin noted, Microsoft has also contributed to a number of Linux Foundation-managed projects like Node.js, OpenDaylight, the Open Container Initiative, the R Consortium and the Open API Initiative.ArsTechnica has more details.