diff --git a/CMakeLists.txt b/CMakeLists.txt
index 121086680..966343ab6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,12 +16,12 @@ set(CLANG_MINIMUM_VERSION "3.4")
 
 # Also remember to set PROTOCOL_VERSION in network/networkprotocol.h when releasing
 set(VERSION_MAJOR 5)
-set(VERSION_MINOR 0)
+set(VERSION_MINOR 1)
 set(VERSION_PATCH 0)
 set(VERSION_EXTRA "" CACHE STRING "Stuff to append to version string")
 
 # Change to false for releases
-set(DEVELOPMENT_BUILD FALSE)
+set(DEVELOPMENT_BUILD TRUE)
 
 set(VERSION_STRING "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 if(VERSION_EXTRA)
diff --git a/doc/client_lua_api.txt b/doc/client_lua_api.txt
index f0e585355..3af633468 100644
--- a/doc/client_lua_api.txt
+++ b/doc/client_lua_api.txt
@@ -1,4 +1,4 @@
-Minetest Lua Client Modding API Reference 5.0.0
+Minetest Lua Client Modding API Reference 5.1.0
 ================================================
 * More information at <http://www.minetest.net/>
 * Developer Wiki: <http://dev.minetest.net/>
diff --git a/doc/menu_lua_api.txt b/doc/menu_lua_api.txt
index 419bc2f8a..8ec8e35aa 100644
--- a/doc/menu_lua_api.txt
+++ b/doc/menu_lua_api.txt
@@ -1,4 +1,4 @@
-Minetest Lua Mainmenu API Reference 5.0.0
+Minetest Lua Mainmenu API Reference 5.1.0
 =========================================
 
 Introduction