What's new in 3.7.1

• Message delivery types - every message in the language files can be sent as chat, actionbar and/or title (with an independent subtitle), in any combination. Placeholders and & color codes work in all of them. Only chat is enabled by default, so nothing changes until you turn another type on.
• Automatic language file migration - files from 3.6.x (one plain string per message) are converted on startup. Your customized texts are kept, a backup of the original is saved next to the file as <name>.pre-3.7.1.bak, and running it again changes nothing.
• Pre-generated RTP positions - the new PreloadChunkPosition section in config.yml keeps a pool of safe positions per world and generates the chunks around them in the background, so /rtp does not have to wait for terrain generation. Prepared positions are saved in plugins/BetterRTP/preload-positions.yml and survive restarts. keep-loaded optionally keeps those chunks loaded (Paper only).