Samsung has just started rolling out the Android 4.0.4 update for Galaxy Note in India. This device received Android 4.0.3 update back in May this year.
This new Operating system update brings various performance improvements to the device with some new features. Now the devices support signature unlock using the S Pen. It also supports pop up play feature that was only Available in Galaxy S3. It has also received some new icons in this update.
This update is available over the air via Samsung Kies. Size of the update is 111 MB so it is recommended to use Wi-fi to download the update.
If you are the owner of Samsung Galaxy Note, you can check for the update manually from settings, About and then Software update.