18.2.1 Release Notes.
18.2.2 Release Notes.
18.2.3 Release Notes.
18.2.4 Release Notes.
Mostly just bug fixes, but also:
Stable-masters Collection: The Stable-masters collection displays all Stable-masters you have discovered, and helps you find those you have yet to discover! Each Stable-master location provides travel options, available destinations, and a link to the game map. The Stable-master Collection makes getting around Lord of the Rings Online even easier!

New Quests: New quests have become available in After-battle Minas Tirith. Lend your aid to the battle’s aftermath for Defenders of Minas Tirith Reputation (with an expanded reputation barter list). New content will become available every two weeks. Your hero must be level 100, have Kindred Reputation with the faction, and have completed Chapter 8 of Book 6. The post-battle version of Minas Tirith can be reached the Threshold of the City in the Pelennor Battlefield and from pre-battle Minas Tirith.

The Defenders of Minas Tirish Quartermaster now offers Return to, Guide to, and Muster in after-battle Minas Tirith skills for those of Friend standing or above.