Any time there is an update to the database on which the Penguin Update runs, it is called a “data refresh”. Google rolled out new iterations of their Penguin Updates at different times to the different search-markets.
An iteration is the continued usage of the same process on already obtained (intermediate) data, as well as the step by step or continued access to a specific data-structure.
Penguin Update iterations by language-region or search-market
04.10.2013 | Penguin Update 2.1 |
22.05.2013 | Penguin Update 2.0 (Algorithm-Update, no data refresh) |
05.10.2012 | Penguin Update #3 |
26.05.2012 | Penguin Update #2 |
24.04.2012 | Penguin Update #1 |
If you want to know more about the difference between an “Update” and a “data refresh”, please see our article “What is the difference between an update and a data refresh?”.