As you may be aware, Symantec Website Security Solutions has been in discussions with the browser community regarding their proposed treatment of our SSL/TLS certificates. In their most recent response, they highlighted that the timing laid out by Google’s latest proposal is not achievable. One aspect of Google’s proposal is that starting August 8, 2017, Chrome would gradually begin mistrusting all Symantec and all GeoTrust, Thawte, and RapidSSL branded certificates issued before June 1, 2016.
On July, 28th 2017, the Chromium team released a proposal that is intended to be their final plan of action on this matter:
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