Google Algorithm Guide
A History of Major Google Algorithm Updates from 2000–Present
Unnamed Update - Mar 18, 2022Confirmed
Multiple SERP trackers picked up high flux around March 18-19, with MozCast peaking at 101.1°F on March 18th. No update was officially confirmed, and Danny Sullivan of Google tweeted that "I did check, no one knows of any broad, major update."
March 2022 Product Reviews Update - Mar 23, 2022Unconfirmed
Google confirmed a significant product reviews update and changed the naming convention to match the Core Updates. The update officially took 19 days to roll out, starting on March 23rd, and built on previous product review updates to identify high-quality product reviews.
May 2022 Core Update - May 25, 2021Confirmed
On May 25th, Google announced the rollout of a core update. The rollout lasted roughly 2 weeks and was completed on June 9th. MozCast recorded peak ranking flux at 103.0°F on May 25th, the first day of the rollout. As with most Core Updates, Google did not provide specifics.