According to the company, the update will be “beginning in May” and will “increase the effect of the
Once the update happens, it’s roll out gradually, which means there isn’t going to be a sudden drop off of non-mobile friendly sites when the algorithm first comes online, which is similar to the slow Panda 4.2 roll out. The update should begin rolling out in the beginning of May.
The mobile-friendly algorithm is a page-by-page signal, so it’ll probably take time for Google to assess every page, and that’s why this will be a gradual roll out.
There are those who believe that the roll out won’t have the same impact the original mobile friendly update, which was called Mobilegeddon. When the original mobile-friendly update came out, there was supposed to be a significant impact on mobile results, but in the end, not everyone really felt much of an impact.