Migrate path from 2 to 3? Anyone have experience updating a CraftCMS site from 2.* to the 3-beta? I'm not in dire need of this at the moment, but can't seem to find it in the developer resources.

EDIT: Found the upgrade guide https://docs.craftcms.com/v3/upgrade.html
The documentation posts this link:
Upgrading from Craft 2

Mijingo has a tutorial: Upgrading Craft 2 to Craft 3

There is a hangout on the topic on Straight Up Craft: Migrating a website with plugins from Craft 2 to Craft 3

At the time of this posting, I have not seen any good documentation on how Plugin Developers should approach migrating their plugins.