The ten.15.3 replace is the third main replace for macOS Catalina and accommodates no adjustments that may have an effect on hackintoshing moreover containing safety enhancements.
10.15.3 Replace Notes:
Accommodates a safety replace
Optimizes gamma dealing with of low grey ranges on Professional Show XDR for SDR workflows when utilizing macOS
Improves multi-stream video enhancing efficiency for HEVC and H.264-encoded 4K video on the MacBook Professional (16-inch, 2019)
For extra detailed details about this replace, please go to: https://help.apple.com/kb/HT210642
Hackintosh 10.15.3 Set up Overview
Obtain the macOS Catalina 10.15.3 Replace (Construct 19D76)
Start the replace by going to Catalina on the App Retailer or open Software program Replace straight by Selecting Apple menu > System Preferences, then click on Software program Replace.
Alternatively 10.15.3 may be up to date to with a standalone installer downloaded from the Apple’s help web page:
Hackintosh 10.15.3 USB Patch
A USB port-limit patch is used to extend the variety of allowed USB ports in macOS, helpful for a motherboards with plently of USB3 ports. A port-limit patch can be utilized to inject lacking USB3 ports by growing the port restrict.
The replace works with the identical USB Port-limit Patch from 10.15.0 If updating from a model of macOS earlier than Catalina you’ll want so as to add it and take away or disable any earlier port-limit patches.