This update brings back support for late-2013/mid-2014 Haswell MacBookPro11,1 models which had been dropped in Big Sur 11.0.1 (build 20B50) due to a bug. Apple have obviously fixed the issue. I was able to successfully use the SMBIOS of this model on my Haswell/HD4400 Toshiba laptop as shown below.
Also released at the same time:
Security Update 2020-001 for Catalina 10.15.7 (build 19H114) Security Update 2020-007 for Mojave 10.14.6 (build 18G7016)