Samsung has started rolling out Android 2.3.6 update for Galaxy Ace S5830I in India. Update is now available via Samsung Kies. Although if you are adventurous type, you can also grab the firmware file from sammobile and flash it manually via ODIN.
There is no official change-log available right now; we will update the post once it is available. Do not worry, if you don’t get the update right-away, as updates are always pushed in batches, it will be released for your device in coming days.
Update Version: S5830IXXLA2/S5830IODDLA1
Do let us know about your experience after the update in comments.