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The latest Star Wars: The Old Republic blog on the official site lays out "quality of life" improvements coming with the v1.4 patch. Included are new facial emotions, a way to leave flashpoints and return to where you were gaming, a delayed binding mechanic and customization of companion armors.
Companion Customization Improvements – Finally, starting in Game Update 1.4 players will be able to hide the helmet, or unify colors to chest, for their companion’s gear (see the screenshot at the top of this article). No more mismatched, silly outfits (unless you like them that way)!
Read the full post on the Star Wars: The Old Republic site.