My favorite outcome of the Monero network upgrade is mining with RandomX on my old laptops. It is surprisingly elegant. I was expecting cooling fans to be maxed, but they are humming along as if normal CPU use.
The inventors of RandomX are geniuses! Thank you guys ????
Learn more about RandomX: https://www.monerooutreach.org/stories/RandomX.php
Many other enhancements happened on the Nov 30 upgrade. Find complete list here: https://github.com/monero-project/monero/releases/tag/v0.15.0.0