I understand Apple's policy of making older models 'unsupported' - it gives them freedom to improve and keep everything stable without having to support older legacy technology. Macintosh: 'Thank both Mykola (khronokernel) & Dhinak (dhinakg) for your work on OCLP + all of the contributing developers who help maintain the patcher! OCLP brings new life to thousands of Macs saving them from the recycler!' The technical intricacies of OCLP patching are way beyond my understanding and it's all in the realm of 'miracles' as far as I'm concerned and the developers are heroes. It looks like Ventura is now fully supported, but I've yet to try it. That's why the very latest OS is not initially recommended. So there may be some delay when a new OS is released before the bugs are ironed out. is released is time consuming and a lot of trial and error, with some problems not revealing themselves immediately or being particularly tricky to solve. The process of finding out which patches are needed for various models when each new O.S. For the 2014 27' iMac there are no patches needed for Monterey (maybe patches will be needed for Ventura). For the 2013 27' iMac it's only a video driver. OCLP pretends your iMac (or other Mac computer) is a later model so the OS update software is happy to install, at the end of the installation, OCLP installs some patches (drivers, fixes, workarounds) to bridge the gap. Click to expand.This is my understanding: The various O.S.s that will not install on your iMac will not do so because they check your model version and declare it 'no longer supported' due to various reasons e.g.

How to open a imac 27 late 2013