You may also try downloading it from if you have trouble reaching the other URL.
HOW TO UPGRADE MAC OS 10.11 TO 10.12 INSTALL
However, our letter of introduction is expired now, so we can now only work with software released after advice to install the root certificate manually on your machine is good. We've spent the time since then getting our root certificate added to all new operating systems, so up-to-date software can recognize our certificates. All software written before that date doesn't know about our root certificate, so we got a cross-signature - a sort of digital letter of introduction - that allowed us to act, for a time, as if we had been around since 2000. I would love to live in a world where software could be supported for longer, but that's where we are today.įor some additional background information: We came into existence in 2015.
HOW TO UPGRADE MAC OS 10.11 TO 10.12 UPDATE
The computer may continue to work for now, but unless you're able to update to a newer OS, things will continue to break, and neither we nor Apple will be able to fix them. According to Wikipedia, Apple's support for OS X 10.11 ending as of December 2019.
Apple also doesn't support OS X 10.11 anymore. Due to technical details of how certificates on the web work, it's not practical for us to support OS X 10.11 and earlier anymore. Hi welcome to the forum and I'm sorry you've had a tough time with the breakages today. When can we expect a fix? Our Mac laptop is unable to upgrade to 10.12 What are your plans for supporting versions < 10.12.1.
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