I downloaded and installed it. So far, all seems well. I took the usual precaution of making a clone of my 10.10.3 system before installing the update. The download, via the App Store, weighed in at 1.09 GB and took about 6 minutes to download with my internet connection. The actual installation took about 15 -20 minutes, including two restarts.
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365
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