diff --git a/library/TextBuilderDev.hs b/library/TextBuilderDev.hs
--- a/library/TextBuilderDev.hs
+++ b/library/TextBuilderDev.hs
@@ -89,16 +89,16 @@
 -- |
 -- Default conversion to text builder.
 class ToTextBuilder a where
-  toTextBuilderDev :: a -> TextBuilder
+  toTextBuilder :: a -> TextBuilder
 
 instance ToTextBuilder TextBuilder where
-  toTextBuilderDev = id
+  toTextBuilder = id
 
 instance ToTextBuilder Text where
-  toTextBuilderDev = text
+  toTextBuilder = text
 
 instance ToTextBuilder String where
-  toTextBuilderDev = fromString
+  toTextBuilder = fromString
 
 -- *
 
diff --git a/text-builder-dev.cabal b/text-builder-dev.cabal
--- a/text-builder-dev.cabal
+++ b/text-builder-dev.cabal
@@ -1,7 +1,7 @@
 cabal-version: 3.0
 
 name: text-builder-dev
-version: 0.1
+version: 0.2
 category: Text
 synopsis: Edge of developments for "text-builder"
 description: