Google Search Console is now sending notifications for PageSpeed tips. Webmasters running the older version of Google PageSpeed module, Google will ask you to update.
Message from Google stated, “Google has detected that your site is currently running PageSpeed < 188.8.131.52 or < 184.108.40.206, an older version of PageSpeed. Outdated or unpatched software can be vulnerable to hacking and malware exploits that harm potential visitors to your site. Therefore, we suggest you update the software on your site as soon as possible.”
Google Search Console Sends PageSpeed Update Notifications!,