On Wed, 17 Sep 2008, Scott Marlowe wrote:
8.3 has much better performance for certain types of workloads, especially with HOT updates, and the more efficient bg writer and vacuuming seems many times faster than it was before. If I was deploying to production today, I'd use 8.3.3 no questions.
Remember 8.3 also gives you the "opportunity" to fix all the sloppy code in your application that depends upon implicit casting. If that's as expensive for you to fix as it is for us, then you won't be moving to 8.3 any time soon.
