diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -3,3 +3,7 @@
 ## 0.1.0.0 -- 2020-09-01
 
 * First version. Released on an unsuspecting world.
+
+## 0.1.1.0 -- 2020-09-01
+
+* First version revised A. Added the functions isI1 and isI2 to the Data.Print.Info module.
diff --git a/Data/Print/Info.hs b/Data/Print/Info.hs
--- a/Data/Print/Info.hs
+++ b/Data/Print/Info.hs
@@ -20,3 +20,11 @@
 
 -- | Type synonym used to coordinate the printing output in general case. 
 type Info2 = InfoG Info InfoFile
+
+isI1 :: InfoG a b -> Bool
+isI1 (I1 _) = True
+isI1 _ = False
+
+isI2 :: InfoG a b -> Bool
+isI2 (I2 _) = True
+isI2 _ = False
diff --git a/print-info.cabal b/print-info.cabal
--- a/print-info.cabal
+++ b/print-info.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                print-info
-version:             0.1.0.0
+version:             0.1.1.0
 synopsis:            Can be used to coordinate the printing output.
 description:         Can be used to coordinate the printing output.
 homepage:            https://hackage.haskell.org/package/print-info