I started to notice this week that when in a post editing screen in WordPress, the fields that are normally there for adding excerpts and custom fields were missing.
Initially I thought that there was something weird going on with code that I’d added to the sites but after doing another test and paying attention it was directly related to upgrading from WordPress 3.0 to 3.1
The answer is very straight forward and not my bug at all.
For some reason (who knows why?) the default view on the post page has changed in 3.1 to have these fields turned off, you can simply turn them back on using the ‘screen options’ tab that is in the top right corner of your WordPress admin screen.
Click the screen show below showing you how to turn these back on.