Going through the PDF of the second printing (thanks for putting it up on DTRPG!), and I've already found my first functional rules change (rather than clarification).
In v1 through v1.4, it was explicitly stated that characters could take actions that cost 3 shots or less in the final three shots of a sequence without worrying about the book-keeping. Now, in v2, on p101, that exemption has been explicitly removed, and any action that overflows the shot counter will incur an initiative penalty in the next sequence.
What do people think about this?
And what other substantive changes (rather than clarifications and spelling corrections) have you encountered, and what do you think of them?