For a list of 2.8-stable packages errata, click here.
For a list of 2.9-stable packages errata, click here.
For a list of 3.0-stable packages errata, click here.
For a list of 3.1-stable packages errata, click here.
For a list of 3.2-stable packages errata, click here.
For a list of 3.3-stable packages errata, click here.

This is an abbreviated change list for OpenBSD 3.4-stable packages:

(No updates yet.)