diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py
index 9531319d6..3d7413950 100644
--- a/mesonbuild/coredata.py
+++ b/mesonbuild/coredata.py
@@ -41,7 +41,7 @@ if T.TYPE_CHECKING:
     KeyedOptionDictType = T.Union[T.Dict['OptionKey', 'UserOption[T.Any]'], OptionOverrideProxy]
     CompilerCheckCacheKey = T.Tuple[T.Tuple[str, ...], str, str, T.Tuple[str, ...], str]
 
-version = '0.57.0'
+version = '0.57.999'
 backendlist = ['ninja', 'vs', 'vs2010', 'vs2015', 'vs2017', 'vs2019', 'xcode']
 
 default_yielding = False