diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -158,3 +158,7 @@
   usual rhythmicity properties, but diversity property of the sounds represented by the encoded 
 additional string. You can try something like: phladiprelioUkr +ul vw +w 54 садок вишневий коло хати
 
+## 0.12.0.1 -- 2023-10-27
+
+* Twelfth version revised A. Added video example and fixed issue with documentation.
+
diff --git a/Phladiprelio/Ukrainian/IO.hs b/Phladiprelio/Ukrainian/IO.hs
--- a/Phladiprelio/Ukrainian/IO.hs
+++ b/Phladiprelio/Ukrainian/IO.hs
@@ -153,7 +153,7 @@
       then parseLineNumber l1 
       else return . fromJust $ num
 
-{-| 'selectSounds' converts the argument after \"+up\" command line argument into a list of  Ukrainian sound representations that is used for evaluation of \'uniqueness periods\' properties of the line. Is a modified Phonetic.Languages.Simplified.Array.Ukrainian.FuncRep2RelatedG2.parsey0Choice from the @phonetic-languages-simplified-examples-array-0.21.0.0@ package. 
+{-| 'selectSounds' converts the argument after \"+ul\" command line argument into a list of  Ukrainian sound representations that is used for evaluation of \'uniqueness periods\' properties of the line. Is a modified Phonetic.Languages.Simplified.Array.Ukrainian.FuncRep2RelatedG2.parsey0Choice from the @phonetic-languages-simplified-examples-array-0.21.0.0@ package. 
 -}
 selectSounds :: String -> FlowSound
 selectSounds = f . sort . filter (/= 101) . concatMap g . words . map (\c -> if c  == '.' then ' ' else toLower c)
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -52,6 +52,9 @@
 
 https://www.facebook.com/Oleksandr.S.Zhabenko/posts/pfbid02EaC4Zwn4YVjfVFWpUhLoHYomiFHZQaiMdorLa6PPx9kXBXepTYPFEFMv8iyV4wAYl
 
+See the demonstration video for the new functionality in version 0.12.0.0 and 0.12.0.1 by the link:
+[https://www.youtube.com/watch?v=zapAPpQ-fc4](https://www.youtube.com/watch?v=zapAPpQ-fc4)
+
 To see the help message with synopsis information, run:
 
 phladiprelioUkr -h
@@ -98,7 +101,7 @@
 
 In Ukraine this day has several important celebrations — Intercession of the Holy Theotokos (Pokrova), Cossacks' Day, Day of Defenders of Ukraine (especially relevant during the Russian war against Ukraine).
 
-On the 27/10/2023 there is Ukrainian Language and Writing Day. 
+On the 27/10/2023 there is Ukrainian Language and Writing Day.
 
 All support is welcome, including donations for the needs of the Ukrainian army, IDPs and refugees.
 
diff --git a/phladiprelio-ukrainian-simple.cabal b/phladiprelio-ukrainian-simple.cabal
--- a/phladiprelio-ukrainian-simple.cabal
+++ b/phladiprelio-ukrainian-simple.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               phladiprelio-ukrainian-simple
-version:            0.12.0.0
+version:            0.12.0.1
 
 -- A short (one-line) description of the package.
 synopsis:           A PhLADiPreLiO implementation for Ukrainian that uses hashes and asynchronous concurrency.