At the beginning of 2008 Sun Microsystems purchased MySQL AB, and ever since then there have been divisions in the ecosystem. As with any software community or ecosystem, where there are divisions there are usually forks, both in the community and the software itself.
Just over a year after the Sun acquisition came the announcement that Sun itself was to be bought out by Oracle. It was at this point that the cracks in the ecosystem really started to show. Many inside Sun stayed quiet – not by choice – while outside things were getting very vocal and heated.