"New lore" refers to recently added or updated information that expands the background story, history, or mythology of a particular fictional universe or narrative. Full definition
The new vehicles serve not only as a means of transportation, but also to prepare for the introduction of new lore, future content as well as options for new gameplay elements. (mmogames.com)
Every time you find new lore or face a new enemy, Atreus will update the game's codex with new information. (kotaku.com)
Discover new lore and art including an Antique Serkonan Guitar and the book Goodbye, Karnaca — A Musician's Farewall. (wolfsgamingblog.com)