We certainly kid, but the update has really taken a while, while the world has moved on to Android 4.0 ICS. Samsung, however, said it is not planning to bring ICS to the Galaxy S and its versions, so Gingerbread will be your last snack with the Samsung Captivate, if you decide to keep it to the end of your two-year contract.
The update is not OTA, so you have to hook up the phone to your computer and update via Samsung's Kies sync software, but that's a small price to pay after such a long wait, isn't it? Apart from Android 2.3, the update will bring some bug fixes into your Gmail and YouTube clients, so get on with the program, and follow Samsung's instructions in the source link.
source: Samsung via TalkAndroid