Posted by Dr-Pete
It's been 3 1/2 years since we launched the MozCast project, and one request I hear a lot is if we can make more than 30 days worth of data available. So, working with Dave Snyder and the team at CopyPress, we've put together the highlights of 2014 and 2015 — the confirmed algorithm updates you already know, and the ones you might have missed. The data is mine, but credit for everything else goes to CopyPress (Thanks, Dave!). If you have any questions about specific events or dates, feel free to comment, and I'll do my best to follow up with any available data.
If there's anything that I've learned from the MozCast project, it's that the updates that get named aren't always as big as we think, and many nameless changes have major impacts on rankings. Google probably makes over 600 changes per year at this point, and if we only focus on the ones they name, we're letting them control the conversation. Collect your own data, draw your own conclusions, and remember that not every dangerous animal is a Panda or a Penguin.
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