Here's the new release blog post: https://z.cash/blog/new-alpha-release-faster-block-times.html
Point three from the blog post -
Coinbase rewards must be protected before they can be used in transparent transactions (#1017).
The Public Alpha Guide covers transparent -> protected but what's the procedure for protected -> transparent?
btw The updated Equihash parameters are kicking my poor little i5's behind.
There's only 1 confirmation on it at the moment but I think I just mined a block for a reward of 0.5205
2nd block, reward: 0.5225