## 📦 [Bookshelf - 4.1.0](https://github.com/mcbookshelf/bookshelf/releases/tag/v4.1.0) > **🗂️ The Collection Update!** > > *Adds a new collection module and support for Minecraft 26.2.* Bookshelf is now based on **Minecraft 26.2**. * 🐛 **[#552](https://github.com/mcbookshelf/bookshelf/pull/552)** - Migrate to the Minecraft 26.2 predicate format. ### `🧱 bs.block` - **[#555](https://github.com/mcbookshelf/bookshelf/pull/555)** - Updated block mappings for Minecraft 26.2. ### `🗂️ bs.collection` - 🎉 **[#510](https://github.com/mcbookshelf/bookshelf/pull/510)** - Added a new `bs.collection` module with 45+ functional programming operations for collections, including map/filter/reduce, set operations, slicing, aggregation, and generation utilities. ### `🎯 bs.hitbox` - **[#555](https://github.com/mcbookshelf/bookshelf/pull/555)** - Updated entity hitboxes for Minecraft 26.2. ### `🔦 bs.raycast` - 🐛 **[#556](https://github.com/mcbookshelf/bookshelf/issues/556)** - Fixed `$raycast.prev_entry_distance` and `$raycast.prev_exit_distance` lambda score scaling.