[CentOS-devel] RHEL receiving updates before CentOS Stream

How does RHEL receive the latest Firefox package before CentOS Stream ?

https://access.redhat.com/errata/RHSA-2020:2828

"This update upgrades Firefox to version 68.10.0 ESR."

Here's is CentOS Stream...

[ahall at ctream ~]$ cat /etc/centos-release
CentOS Linux release 8.2.2004 (Core)

[ahall at ctream ~]$ yum info firefox
Installed Packages
Name         : firefox
Version      : 68.9.0
Release      : 1.el8_2

[ahall at ctream ~]$ sudo yum upgrade firefox
[sudo] password for ahall:
Last metadata expiration check: 0:11:36 ago on Tue 07 Jul 2020 03:43:44 BST.
Dependencies resolved.
Nothing to do.
Complete!

[ahall at ctream ~]$ yum info firefox-68.10.0
Last metadata expiration check: 0:06:42 ago on Tue 07 Jul 2020 03:48:12 BST.
Error: No matching Packages to list