diff --git a/doxyfile b/doxyfile
index fa9790d..d7884f8 100644
--- a/doxyfile
+++ b/doxyfile
@@ -32,7 +32,7 @@ DOXYFILE_ENCODING      = UTF-8
 # title of most generated pages and in a few other places.
 # The default value is: My Project.
 
-PROJECT_NAME           = "pdfOCR VERSION_PLACEHOLDER API"
+PROJECT_NAME           = "pdfOCR 4.0.0 API"
 
 # The PROJECT_NUMBER tag can be used to enter a project or revision number. This
 # could be handy for archiving the generated documentation or if some version
diff --git a/itext.tests/itext.pdfocr.api.tests/Properties/AssemblyInfo.cs b/itext.tests/itext.pdfocr.api.tests/Properties/AssemblyInfo.cs
index 8a5748b..f474793 100644
--- a/itext.tests/itext.pdfocr.api.tests/Properties/AssemblyInfo.cs
+++ b/itext.tests/itext.pdfocr.api.tests/Properties/AssemblyInfo.cs
@@ -17,4 +17,4 @@
 
 [assembly: AssemblyVersion("4.0.0.0")]
 [assembly: AssemblyFileVersion("4.0.0.0")]
-[assembly: AssemblyInformationalVersion("4.0.0-SNAPSHOT")]
+[assembly: AssemblyInformationalVersion("4.0.0")]
diff --git a/itext.tests/itext.pdfocr.api.tests/itext.pdfocr.api.tests.csproj b/itext.tests/itext.pdfocr.api.tests/itext.pdfocr.api.tests.csproj
index 0786c84..cc7e738 100644
--- a/itext.tests/itext.pdfocr.api.tests/itext.pdfocr.api.tests.csproj
+++ b/itext.tests/itext.pdfocr.api.tests/itext.pdfocr.api.tests.csproj
@@ -25,9 +25,9 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj')" />
-    <PackageReference Include="itext.pdftest" Version="9.0.0-SNAPSHOT" Condition="!Exists('..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj')" />
+    <PackageReference Include="itext.pdftest" Version="9.0.0" Condition="!Exists('..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj')" />
 	<ProjectReference Include="..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj')" />
-    <PackageReference Include="itext.bouncy-castle-adapter" Version="9.0.0-SNAPSHOT" Condition="!Exists('..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj')" />
+    <PackageReference Include="itext.bouncy-castle-adapter" Version="9.0.0" Condition="!Exists('..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj')" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1">
diff --git a/itext.tests/itext.pdfocr.tesseract4.tests/Properties/AssemblyInfo.cs b/itext.tests/itext.pdfocr.tesseract4.tests/Properties/AssemblyInfo.cs
index 9486726..516b10a 100644
--- a/itext.tests/itext.pdfocr.tesseract4.tests/Properties/AssemblyInfo.cs
+++ b/itext.tests/itext.pdfocr.tesseract4.tests/Properties/AssemblyInfo.cs
@@ -17,4 +17,4 @@
 
 [assembly: AssemblyVersion("4.0.0.0")]
 [assembly: AssemblyFileVersion("4.0.0.0")]
-[assembly: AssemblyInformationalVersion("4.0.0-SNAPSHOT")]
+[assembly: AssemblyInformationalVersion("4.0.0")]
diff --git a/itext.tests/itext.pdfocr.tesseract4.tests/itext.pdfocr.tesseract4.tests.csproj b/itext.tests/itext.pdfocr.tesseract4.tests/itext.pdfocr.tesseract4.tests.csproj
index 06ef731..740d748 100644
--- a/itext.tests/itext.pdfocr.tesseract4.tests/itext.pdfocr.tesseract4.tests.csproj
+++ b/itext.tests/itext.pdfocr.tesseract4.tests/itext.pdfocr.tesseract4.tests.csproj
@@ -26,9 +26,9 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj')" />
-    <PackageReference Include="itext.pdftest" Version="9.0.0-SNAPSHOT" Condition="!Exists('..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj')" />
+    <PackageReference Include="itext.pdftest" Version="9.0.0" Condition="!Exists('..\..\..\itextcore\itext\itext.pdftest\itext.pdftest.csproj')" />
 	<ProjectReference Include="..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj')" />
-    <PackageReference Include="itext.bouncy-castle-adapter" Version="9.0.0-SNAPSHOT" Condition="!Exists('..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj')" />
+    <PackageReference Include="itext.bouncy-castle-adapter" Version="9.0.0" Condition="!Exists('..\..\..\itextcore\itext\itext.bouncy-castle-adapter\itext.bouncy-castle-adapter.csproj')" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1">
diff --git a/itext/itext.pdfocr.api/Properties/AssemblyInfo.cs b/itext/itext.pdfocr.api/Properties/AssemblyInfo.cs
index f04e033..619ffad 100644
--- a/itext/itext.pdfocr.api/Properties/AssemblyInfo.cs
+++ b/itext/itext.pdfocr.api/Properties/AssemblyInfo.cs
@@ -16,7 +16,7 @@
 
 [assembly: AssemblyVersion("4.0.0.0")]
 [assembly: AssemblyFileVersion("4.0.0.0")]
-[assembly: AssemblyInformationalVersion("4.0.0-SNAPSHOT")]
+[assembly: AssemblyInformationalVersion("4.0.0")]
 [assembly: InternalsVisibleTo("itext.pdfocr.api.tests, PublicKey=" +
     "00240000048000009400000006020000002400005253413100040000010001008b21ed5b3fc1c1" +
     "1996390981fe22bbe71a39a9e11d3c2cefddd6ee92920fa871f9666ae0fa941af0280d0653df04" +
diff --git a/itext/itext.pdfocr.api/itext.pdfocr.api.csproj b/itext/itext.pdfocr.api/itext.pdfocr.api.csproj
index 9deeb66..ff4c0f9 100644
--- a/itext/itext.pdfocr.api/itext.pdfocr.api.csproj
+++ b/itext/itext.pdfocr.api/itext.pdfocr.api.csproj
@@ -30,7 +30,7 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\itextcore\itext\itext.io\itext.io.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.io\itext.io.csproj')" />
-    <PackageReference Include="itext" Version="9.0.0-SNAPSHOT" Condition="!Exists('..\..\..\itextcore\itext\itext.io\itext.io.csproj')" />
+    <PackageReference Include="itext" Version="9.0.0" Condition="!Exists('..\..\..\itextcore\itext\itext.io\itext.io.csproj')" />
     <ProjectReference Include="..\..\..\itextcore\itext\itext.kernel\itext.kernel.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.kernel\itext.kernel.csproj')" />
     <ProjectReference Include="..\..\..\itextcore\itext\itext.layout\itext.layout.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.layout\itext.layout.csproj')" />
     <ProjectReference Include="..\..\..\itextcore\itext\itext.pdfa\itext.pdfa.csproj" Condition="Exists('..\..\..\itextcore\itext\itext.pdfa\itext.pdfa.csproj')" />
diff --git a/itext/itext.pdfocr.api/pdfocr-api.nuspec b/itext/itext.pdfocr.api/pdfocr-api.nuspec
index 19a5d7d..e192ba9 100644
--- a/itext/itext.pdfocr.api/pdfocr-api.nuspec
+++ b/itext/itext.pdfocr.api/pdfocr-api.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
   <metadata>
     <id>itext.pdfocr.api</id>
-    <version>4.0.0-SNAPSHOT</version>
+    <version>4.0.0</version>
     <title>iText pdfOcr</title>
     <authors>Apryse Software</authors>
     <owners>Apryse Software</owners>
@@ -18,7 +18,7 @@
     <repository type="git" url="https://github.com/itext/i7n-pdfocr.git" />
     <dependencies>
       <group targetFramework="net461">
-        <dependency id="itext" version="9.0.0-SNAPSHOT" />
+        <dependency id="itext" version="9.0.0" />
       </group>
     </dependencies>
   </metadata>
diff --git a/itext/itext.pdfocr.tesseract4/Properties/AssemblyInfo.cs b/itext/itext.pdfocr.tesseract4/Properties/AssemblyInfo.cs
index 650bcf7..f393326 100644
--- a/itext/itext.pdfocr.tesseract4/Properties/AssemblyInfo.cs
+++ b/itext/itext.pdfocr.tesseract4/Properties/AssemblyInfo.cs
@@ -16,7 +16,7 @@
 
 [assembly: AssemblyVersion("4.0.0.0")]
 [assembly: AssemblyFileVersion("4.0.0.0")]
-[assembly: AssemblyInformationalVersion("4.0.0-SNAPSHOT")]
+[assembly: AssemblyInformationalVersion("4.0.0")]
 [assembly: InternalsVisibleTo("itext.pdfocr.tesseract4.tests, PublicKey=" +
     "00240000048000009400000006020000002400005253413100040000010001008b21ed5b3fc1c1" +
     "1996390981fe22bbe71a39a9e11d3c2cefddd6ee92920fa871f9666ae0fa941af0280d0653df04" +
diff --git a/itext/itext.pdfocr.tesseract4/itext/pdfocr/tesseract4/actions/data/PdfOcrTesseract4ProductData.cs b/itext/itext.pdfocr.tesseract4/itext/pdfocr/tesseract4/actions/data/PdfOcrTesseract4ProductData.cs
index e1253e9..4235247 100644
--- a/itext/itext.pdfocr.tesseract4/itext/pdfocr/tesseract4/actions/data/PdfOcrTesseract4ProductData.cs
+++ b/itext/itext.pdfocr.tesseract4/itext/pdfocr/tesseract4/actions/data/PdfOcrTesseract4ProductData.cs
@@ -34,7 +34,7 @@ public class PdfOcrTesseract4ProductData {
 
         private const String PDF_OCR_TESSERACT4_PUBLIC_PRODUCT_NAME = "pdfOCR-Tesseract4";
 
-        private const String PDF_OCR_VERSION = "4.0.0-SNAPSHOT";
+        private const String PDF_OCR_VERSION = "4.0.0";
 
         private const int PDF_OCR_COPYRIGHT_SINCE = 2000;
 
diff --git a/itext/itext.pdfocr.tesseract4/pdfocr-tesseract4.nuspec b/itext/itext.pdfocr.tesseract4/pdfocr-tesseract4.nuspec
index 6280689..528d7b2 100644
--- a/itext/itext.pdfocr.tesseract4/pdfocr-tesseract4.nuspec
+++ b/itext/itext.pdfocr.tesseract4/pdfocr-tesseract4.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
   <metadata>
     <id>itext.pdfocr.tesseract4</id>
-    <version>4.0.0-SNAPSHOT</version>
+    <version>4.0.0</version>
     <title>iText pdfOcr</title>
     <authors>Apryse Software</authors>
     <owners>Apryse Software</owners>
@@ -18,7 +18,7 @@
     <repository type="git" url="https://github.com/itext/i7n-pdfocr.git" />
     <dependencies>
       <group targetFramework="net461">
-        <dependency id="itext.pdfocr.api" version="4.0.0-SNAPSHOT" />
+        <dependency id="itext.pdfocr.api" version="4.0.0" />
       </group>
     </dependencies>
     <references>
diff --git a/port-hash b/port-hash
index a0c3202..5591138 100644
--- a/port-hash
+++ b/port-hash
@@ -1 +1 @@
-395badf33cd52494e7fd07509a2d94a683194519
+55a45d5e726da0a60917476f8417bb86c97ebeff