Following the release of GM version a few days ago, Catalina 10.15 was released Monday October 7th, 2019.
Build is 19A583. It is available off the AppStore for download. Those who run on beta versions through the beta enrolment program should probably 1st revert to default mode before attempting to download as the new macOS version may not be otherwise be offered.
Our 1st few guides have just stared to roll in so we invite everyone to bring in their new contributions.
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Released March 24th, 2020.
Watch out folks as this update can be problematic on Skylake and later platforms. Update Lilu + WEG kexts to latest available versions and Clover to r5107 before initiating the update. If you cache your kexts from /L/E (or /S/L/E), remember to also update the kexts in the E/C/k/O of your EFI partition as the temporary update partition boots only with kexts injection. Faking a different CPUID should no longer be required but boot parameters -lilubetaall and/or -disablegfxfirmware may be so until the update has fully completed.
I've also noticed that 10.15.4 no longer supports XCPM on my Ivy Bridge laptop (Latitude E6230) so it's back to generated CPU power management SSDT + AICPUPM patch.
At the same time Safari 13.1 + Security Update 2020-002 were released for Mojave 10.14.6 and HIgh Sierra 10.13.6.
Warning to all those who run Catalina on officially unsupported graphics platforms (eg: 1st gen Intel HD, Intel HD3000, nVidia Tesla), the patches/tricks previously used to gain OpenGL-only graphics acceleration no longer work in 10.15.4. As such, stick to 10.15.3 for the time being!
Edit: April 8th, 2020
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Unsurprisingly, Apple issue a 10.15.4 Supplemental update today. This brings 10.15.4 to Build 19E287. Looks safe to install on all systems running Clover r5107. Had trouble on Latitude E6230 running with Clover r5108 (and reverted to r5107).
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Released May 26th, 2020.
Seems safe to install on our Hacks. Ended up with a macOS could not be installed on your computer error message on the Latitude E6230 and 7490 laptops due to bless tool being unable to set the boot disk. But these are like false alarms because the Catalina partitions of those Hacks remained bootable and were properly updated to 10.15.5. The macOS Install Data folders in /System/Volumes/Data, however, had to be manually removed to get rid of the temp partition so, clearly indicative of a minor problem in fully completing the update at the end of the process.
As for 10.15.4, refresh Lilu + WEG kexts and Clover to latest available versions (v1.4.4, v1.3.9 and r5118 at time of writing) before initiating the macOS update. If you cache your kexts from /L/E (or /S/L/E), remember to also update the kexts in the E/C/k/O folder of your EFI partition as the temporary update partition boots only with kexts injection.
Security Update 2020-003 for High Sierra 10.13.6 and Mojave 10.14.6 released too (build 17G13033 and 18G5053).
Edit: 1st June 2020:
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10.15.5 Supplemental Update released today. Build 19F101.
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Released July 15th, 2020.
This is most probably the last major update for Catalina with only Supplemental Updates or Security Updates to follow. Safe to install on our Hacks without specific issues or surprises to expect. Blessing issue remains for those of us who experience it since 10.15.5 and this requires a reset of NVRAM to avoid. Failing that, 10.16.5 still installs Ok but the temp update partition remains until the macOS Install Data folder located in /System/Volumes/Data is manually deleted.
Security updates 2020-004 for High Sierra (17G14019) and Mojave (18G6020) released at the same time.
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Released September 24th, 2020.
We thought 10.15.6 would be the last major Catalina version with further updates limited to Supplemental Updates or Security Updates only. Today, Apple proved us wrong and released 10.15.7 update today! Safe to install on our Hacks without specific issues or surprises to expect.
Security update 2020-005 for High Sierra (17G14033) and Mojave (18G6032) also released at the same time.
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Released November 12th, 2020 as announced.
Version 11.0.1, build 20B29
Officially, this drops support for Ivy Bridge systems with Intel HD4000 graphics to raise the minimum requirements to Haswell graphics. Yet, as per all beta versions, Big Sur 11.0.1 still provides all the drivers required to support HD4000 graphics so it can be installed and run on such platforms with full graphics acceleration.
nVidia Kepler graphics remain fully supported. A notable exception to these specifications appears to apply to the iMac14,1/2/3 (Haswell models with Iris Pro 5200 or Kepler GT7x5M graphics) that all appear officially unsupported.
Also released at the same time:
High Sierra 10.13.6 Security Update 2020-006 (build 17G14042), which should be the last one, High Sierra reaching end of support. Mojave 10.14.6 Security Update 2020-006 (build 18G6042).0 0 929
Nov 19th, 2020: Apple released a statement related to severe issues affecting Late 2013/Mid 2014 13" MacBookPro. These are the Haswell MacBookPro11,1 models.
In order to prevent further widespread of the issues and pending an eventual fix, Apple released a new Big Sur 11.0.1 version (build 20B50) that basically excludes MBP11,1 platform from the list of supported Mac models.
15" models of the same generation, i.e. MacBookPro11,2 and MacBookPro11,3 are not affected by this and remain on the list of supported platforms.
The direct consequence of this on Hackintosh is this:
Hackintosh computers running with MacBookPro11,1 SMBIOS can no longer obtain Big Sur as a software update or download Big Sur from the AppStore. Hackintosh computers running with MacBookPro11,1 SMBIOS must use the -no_compat_check boot argument to install Big Sur. A workaround to this is, of course, to run Big Sur with a different SMBIOS such a MacBookPro11,2 or MacBookPro11,3.0 0 180
Released December 14th, 2020.
Also released at the same time:
Security Update 2020-001 for Catalina 10.15.7 (build 19H114) Security Update 2020-007 for Mojave (Build 18G7016)0 0 391