What's the policy on 3rd versus 4th edition?

[darius]

The README says "This chart was made for the third edition of the book and is being updated for the upcoming fourth edition." Now the fourth edition is out; the files seem to come in pairs like agents.py, agents4e.py; and the README chart only points to third-edition files. There are differences between the files in each pair, though as I'm just starting I'm not sure yet how far the updates have gone.

Are the third-edition versions meant to be developed further, or should all new work go into the fourth? Are (any of) the fourth-edition versions up to date with the book, and if so shouldn't we update the README chart to point to them?

[norvig]

Hi Darius, great to bring this up.

We've all been sidetracked with other things, and I'm focused on the AIMA exercises more than the code, but I will, later today, post all the pseudo-code algorithms here.

The policy should be: We're not going to try to maintain two branches. All work should go into switching over to 4e.

Another policy point: We should upgrade to 3.7. I'll open that as a separate issue.

Thanks for spurring me into action, and for your continued support!