Update version number to rc2.
diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py
index dd45907..7d24568 100644
--- a/mesonbuild/coredata.py
+++ b/mesonbuild/coredata.py
@@ -39,7 +39,7 @@
     OptionDictType = T.Union[T.Dict[str, 'UserOption[T.Any]'], OptionOverrideProxy]
     CompilerCheckCacheKey = T.Tuple[T.Tuple[str, ...], str, str, T.Tuple[str, ...], str]
 
-version = '0.56.0.rc1'
+version = '0.56.0.rc2'
 backendlist = ['ninja', 'vs', 'vs2010', 'vs2015', 'vs2017', 'vs2019', 'xcode']
 
 default_yielding = False