v7.3.9
[blog] Company Update: What we've been working on (and why) (alethomas) (#47626) (#47908)
[docs-infra] Strengthen CSP (#43711)
point v7 subdomain to MUI X v7 docs (#113)
[website] Add hero section to homepage (#27364)
[docs] Add Algolia verification code to robot.txt (#31356)