Here is a quick collection of rule data released by official FFG channels.
If you have a question for FFG, you can submit it on the Rules Question Form.
The LOTR LCG Quest Companion site is aggregating all of the rulings thus far for the game. You can check out their efforts here.
If you have a verifiable answer from FFG for this page, email us at hallofheroescontact(at)gmail.com.
*RRG 1.6 was unfortunately lost to the ether, as it was overwritten on the official FFG news page. Using snippets screen-grabbed by the YouTube channel The Tenth Nazgul, Hall of Gondor has re-created a PDF of all of the 1.6 changes.