add minimum minetest version key for contentdb

biome_defs.lua

@@ -125,10 +125,7 @@ moretrees.willow_biome = {
 }
 
 moretrees.rubber_tree_biome = {
-	surface = {
+	surface = "default:dirt_with_grass",
-		"default:dirt_with_grass",
-		"default:sand",
-	},
 	avoid_nodes = moretrees.avoidnodes,
 	avoid_radius = 10,
 	seed_diff = 338,

mod.conf

@@ -1,3 +1,4 @@
 name = moretrees
 depends = default, biome_lib, vessels
 optional_depends = doors, stairs, moreblocks, intllib, farming
+min_minetest_version = 5.2.0

node_defs.lua

@@ -419,8 +419,7 @@ end
 -- we need our own copy of that node, which moretrees will match against.
 
 local jungle_tree = table.copy(minetest.registered_nodes["default:jungletree"])
-jungle_tree.drop = jungle_tree.drop or { items = {} }
+jungle_tree.drop = "default:jungletree"
-table.insert(jungle_tree.drop.items, { items = {"default:jungletree"}})
 minetest.register_node("moretrees:jungletree_trunk", jungle_tree)
 
 default.register_leafdecay({

saplings.lua

@@ -6,9 +6,6 @@
 local dirt_surfaces = {
 	set = true,
 	["default:dirt"] = true,
-	["default:dirt_with_snow"] = true,
-	["default:dry_dirt"] = true,
-	["default:dry_dirt_with_dry_grass"] = true,
 	["default:dirt_with_grass"] = true,
 	["default:dirt_with_dry_grass"] = true,
 	["default:dirt_with_coniferous_litter"] = true,
@@ -16,8 +13,7 @@ local dirt_surfaces = {
 	["woodsoils:dirt_with_leaves_1"] = true,
 	["woodsoils:dirt_with_leaves_2"] = true,
 	["woodsoils:grass_with_leaves_1"] = true,
-	["woodsoils:grass_with_leaves_2"] = true,
+	["woodsoils:grass_with_leaves_2"] = true
-	["meditteranean_biome:dirt_with_mediterranean_grass"] = true
 }
 
 local conifer_surfaces =  {
@@ -31,8 +27,7 @@ local conifer_surfaces =  {
 	["woodsoils:dirt_with_leaves_2"] = true,
 	["woodsoils:grass_with_leaves_1"] = true,
 	["woodsoils:grass_with_leaves_2"] = true,
-	["default:dirt_with_snow"] = true,
+	["default:dirt_with_snow"] = true
-	["meditteranean_biome:dirt_with_mediterranean_grass"] = true
 }
 
 local sand_surfaces = {