We take a look at AMD's upcoming line of Ryzen 4000 mobile CPUs, and share our first impressions of Ubuntu 20.04's approach to ZFS on root. Plus Let's Encrypt's certificate validation mix-up, Intel's questionable new power supply design, and more. Links: Let's Encrypt changes course on certificate revocation Revoking certain certificates on March 4 Let's Encrypt: Incomplete revocation for CAA rechecking bugPass authzModel by value, not reference The Complete Guide to CAA RecordsDNS Certification Authority Authorization AMD's 7nm Ryzen 4000 laptop processors are finally here How Intel is changing the future of power supplies with its ATX12VO spec Single Rail Power Supply ATX12VO Design GuideFreeNAS and TrueNAS are UnifyingFreeNAS and TrueNAS are Unifying [Video Announcement] Ubuntu 20.04's zsys adds ZFS snapshots to package management ubuntu/zsys: zsys daemon and client for zfs systems