We have added new features relating to our coverage of Microsoft patches and imported the legacy patch diary tables into our new system going back to 2006.

API methods: https://isc.sans.edu/api/#getmspatchday

Web interface: https://isc.sans.edu/mspatchdays.html

Please note that the data may be incomplete or inaccurate in some cases. If you find errors, please leave a comment on this thread.

-- 
Alex Stanford - GIAC GWEB & GSEC,
Research Operations Manager,
SANS Internet Storm Center
/in/alexstanford