As announced, Infinity Ward has released Patch 1.10 for 'Call of Duty: Modern Warfare', which will be more extensive this time.
Among other things you can look forward to the Special Operations: "Harbinger" and "Brimstone", as well as the Classic Special Operations: "Door Kick", the 3 Star Rating System and Rewards.
The rest of the changes mainly concern corrections and adjustments that span the entire game. All details can be found in the following changelog:
11/22/19 – Patch Notes from modernwarfare