I am about to dig into CCK a bit, and develop my first CCK Field. I'm sure I will be examining existing modules to learn from them, but I also want to find out where the best developer documentation is for CCK 2.
This http://drupal.org/node/101742 seems to be the main place for developer documentation. How much of the things that are tagged 5.x are relevant in 6.x / CCK 2?
Have things in the code changed so much from CCK 1 that I should pretty much ignore CCK 1 documentation? Or is it close enough that it would probably help me.
This http://drupal.org/node/191796 is the only page I've encountered so far that is tagged for 6.x. Is this probably the best thing for me to read to understand the development process for CCK 2 fields?