Chrome will soon systematically roll out HTML5 by Default in the coming weeks. This primarily effects Flash and browser not auto-loading it (which is great) but since Chrome is used by half of all browsing the internet it’s worth reading the update to see if this might effect your client sites in any other ways.
Also a reminder that it appears that Chrome 56 (scheduled to be released soon, if not already by the time you read this) will be the version that will mark HTTP pages w/ password fields as non-secure according to an update on a Google’s Security Blog post.