It was an intriguing and entertaining year for open-source software in 2019, with news headlines that were all over the map.

In the biggest news, IBM completed its acquisition of open source market leader Red Hat, bringing the two powerhouses together on a new shared path of making their now-connected futures successfully work out for both.

But there was plenty more happening as well, from SUSE dropping OpenStack to Microsoft continuing to deepen its role and relationships in open source with Azure. Then late in the year Microsoft announced that it had released a technical preview of the Linux version of its Teams chat and communications software — after the company said last year that it had no plans to do so. Click through the slideshow above for a glance at these headlines and more in the fascinating world of open source. Where will 2020 take us?