I have owned Macintosh computers exclusively for 42 years, dozens of them. I had been a strong advocate for them. I firmly believe that I would not have been successful without them. In all those years, I have only had one computer fail on me, the bottom part of the screen failed, but I still use it for remote access. I easily got 10 years out of them before I had to put them out to pasture. A couple of months ago that all changed. Apple introduced a major upgrade to their operating system, MacOS Tahoe 26. This is the absolute worst upgrade ever and I have seen them all. Every program I have, including the ones from Apple (Final Cut Pro and Filemaker Pro) crash regularly. Then last week, they did another update to it and now my CAD software is unusable. After two days trouble shooting, I finally determined that they somehow changed the memory management so I had to shut down everything, restart the computer and even then it would still crash with a medium sized file. This was a top of the line, fully decked out iMac that is less than 5 years old with the Apple silicon. My only solution is to buy a new computer with updated processor and double the memory and that won’t completely solve the problem but at least my CAD software will be usable. To add insult to injury, I have to wait two weeks for them to ship it from China