Show Age traits in descriptive books

docs/PORTING.md

@@ -329,6 +329,12 @@ Age-seeded biomes in the legacy diagonal-checkerboard layout. Each square is
 uses Minecraft's serializable checkerboard biome source so the layout remains
 stable across server reloads.
 
+Version 0.2.22.1 includes the server-owned Age traits in the validated
+Descriptive Book screen response and displays the terrain, biome distribution,
+lighting, weather, day length, celestial angle, and celestial phase on the
+book's right-hand description page. This works for held books and Book Stands
+without copying mutable Age-generation data onto the item.
+
 Version 0.2.14.0 restores the legacy Linking and Descriptive Book artwork for
 inventory items and gives each book its matching open-book texture when placed
 on a Book Stand. Return Linking Books created inside another Age also retain and