First, let's cover the removals. LineageOS 14.1 for the LG K10 (m216) has been discontinued, possibly due to the maintainer being inactive. The official forum hasn't had a reply from the developer since February. Builds for the Xperia XA2 (pioneer) were briefly halted due to the maintainer's phone dying, but he was later able to obtain a new device and continue development. Finally, the ZenFone 2 Laser/Selfie 1080p (Z00T) and ZenFone 2 Laser 720p (Z00L) are no longer supported.
Without further ado, here are the latest additions to the LineageOS 15.1 build roster: