diff --git a/CommonAssemblyInfo.cs b/CommonAssemblyInfo.cs
index fa5962d..430d49d 100644
--- a/CommonAssemblyInfo.cs
+++ b/CommonAssemblyInfo.cs
@@ -13,11 +13,11 @@
 [assembly: AssemblyConfigurationAttribute("release")]
 [assembly: AssemblyCompanyAttribute("Igor Brejc and others")]
 [assembly: AssemblyProductAttribute("Srtm2Osm")]
-[assembly: AssemblyCopyrightAttribute("Copyright (C) 2007-2022 Igor Brejc and others")]
+[assembly: AssemblyCopyrightAttribute("Copyright (C) 2007-2023 Igor Brejc and others")]
 [assembly: AssemblyTrademarkAttribute("")]
 [assembly: AssemblyCultureAttribute("")]
-[assembly: AssemblyFileVersionAttribute("1.15.4.0")]
-[assembly: AssemblyInformationalVersionAttribute("1.15")]
+[assembly: AssemblyFileVersionAttribute("1.16.5.0")]
+[assembly: AssemblyInformationalVersionAttribute("1.16")]
 [assembly: AssemblyDelaySignAttribute(false)]
 [assembly: AssemblyKeyNameAttribute("")]
 
diff --git a/Srtm2Osm.ProjectVersion.txt b/Srtm2Osm.ProjectVersion.txt
index c692000..9ddebe8 100644
--- a/Srtm2Osm.ProjectVersion.txt
+++ b/Srtm2Osm.ProjectVersion.txt
@@ -1 +1 @@
-1.15.0.0
\ No newline at end of file
+1.16.0.0
\ No newline at end of file
diff --git a/Srtm2Osm.build b/Srtm2Osm.build
index f262c80..cfb3892 100644
--- a/Srtm2Osm.build
+++ b/Srtm2Osm.build
@@ -8,7 +8,7 @@
 
 	<!-- setting basic project properties -->
     <property name="ProjectId" value="Srtm2Osm" />
-    <property name="ReleaseStartDate" value="09/04/2022"/>
+    <property name="ReleaseStartDate" value="08/05/2023"/>
     <property name="CompanyName" value="Igor Brejc and others"/>
     <property name="BuildEngine" value="MSBuild"/>
     <property name="ProjectSolutionFile" value="${ProjectId}.sln" />
diff --git a/Srtm2Osm/ReleaseNotes.txt b/Srtm2Osm/ReleaseNotes.txt
index 41c1c41..502b87b 100644
--- a/Srtm2Osm/ReleaseNotes.txt
+++ b/Srtm2Osm/ReleaseNotes.txt
@@ -3,6 +3,15 @@ Srtm2Osm tool by Igor Brejc and others
 VERSION HISTORY
 ---------------
 
+1.16
+----
+- Changed defaults for node & way IDs, because downstream software uses the old defaults for state handling.
+- Downgrade the cell file size check, which will trigger a warning instead an error.
+- Don't output fractional seconds in the resulting file. Another fix for downstream software...
+- Add support for file:// scheme in source URLs.
+- Display a warning when no contour lines were generated.
+- Srtm2Osm requires at least .NET Framework 4.6.2
+
 1.15
 ----
 - The ArduPilot Firmware server is used as default SRTM source.