For the first time ever, CCleaner 5.33.1612 is offered to immediately update, without begging you to upgrade, or trying to show you a video, or anything. The new version is 5.34.6207. The claim is that only the 32-bit version was affected. See
http://www.piriform.com/news/release-announcements/2017/9/18...At least I hope that's what happened.