Apple today released macOS Big Sur 11.2.1, the third update to the macOS Big Sur operating system that launched in November. macOS Big Sur‌ 11.2.1 comes a little over a week after the release of macOS 11.2. The new ‌‌‌macOS Big Sur‌‌ 11.2.1‌ update can be downloaded for free on all eligible Macs us…