Here is the link to the LotRO Forums.
You will notice that the top three posts in the LotRO Forums are stickied. The first one is Announcements. The second contains: Release Notes and Known Issues. The third contains: Developer Diaries and Official Discussion. The last two are useful fora to watch, because they tell of upcoming changes for any update, major or minor, but all three contain useful information about the game.
https://www.lotro.com/forums/forum.php?s=bf7fd533f9cf4cc82e7e7dabdcd9178c