1. 2021-10-29 [5] Microsoft Security Update Releases microsoft Microsoft 2. 2021-10-19 [1] Microsoft Security Update Minor Revisions microsoft Microsoft 3. 2021-10-19 [2] Microsoft Security Update Revisions microsoft Microsoft 4. 2021-10-12 [1] Microsoft Security Advisory Notification microsoft Microsoft 5. 2021-10-12 [1] Microsoft Security Update Summary for October 12, 202 microsoft Microsoft