This story is only a couple months old, it updates (more fully) the simliar post from Dec 2020. It is about the events of the Solar Winds hack investigation starting in 2019. Interesting details about how they go about software builds and releases. (In case someone here thinks it’s easy.)
https://www.wired.com/story/the-untold-story-of-solarwinds-the-boldest-supply-chain-hack-ever/
About a 40 minute read, just shrink down the Wired ad pop-up.