diff --git a/CHANGELOG.TXT b/CHANGELOG.TXT
index 859334377..c11587eea 100644
--- a/CHANGELOG.TXT
+++ b/CHANGELOG.TXT
@@ -1,3 +1,16 @@
+1.75 (2017-02-13):
+
+Known Issue:
+------------
+File hash check will fail when updating from 1.75 Beta 1 to newer versions.
+  Exception will be: "MD5 Hashes didn't match!" for 1.75 Beta 1 - 1.75 RC1
+
+
+Features/Enhancements:
+----------------------
+#344 - Use SHA512 File Hashes to validate downloads (in the update mechanism & posted to the Downloads page)
+
+
 1.75 RC1 (2017-01-27):
 
 Known Issue:
diff --git a/Tools/create_upg_chk_files.ps1 b/Tools/create_upg_chk_files.ps1
index d81f992b9..28d539549 100644
--- a/Tools/create_upg_chk_files.ps1
+++ b/Tools/create_upg_chk_files.ps1
@@ -18,7 +18,7 @@ Write-Host Version: $version
 Write-Host dURL: https://github.com/mRemoteNG/mRemoteNG/releases/download/$tag/$filename
 Write-Host clURL: https://raw.githubusercontent.com/mRemoteNG/mRemoteNG/$tag/CHANGELOG.TXT
 
-$hash = Get-FileHash -Algorithm MD5 $file | % { $_.Hash }
+$hash = Get-FileHash -Algorithm SHA512 $file | % { $_.Hash }
 Write-Host Checksum: $hash
 	
 
@@ -38,5 +38,5 @@ Write-Host dURL: https://github.com/mRemoteNG/mRemoteNG/releases/download/$tag/$
 Write-Host clURL: https://raw.githubusercontent.com/mRemoteNG/mRemoteNG/$tag/CHANGELOG.TXT
 
 Write-Host CertificateThumbprint: 0CEA828E5C787EA8AA89268D83816C1EA03375BA
-$hash = Get-FileHash -Algorithm MD5 $file | % { $_.Hash }
+$hash = Get-FileHash -Algorithm SHA512 $file | % { $_.Hash }
 Write-Host Checksum: $hash
\ No newline at end of file
diff --git a/mRemoteV1/App/Update/AppUpdater.cs b/mRemoteV1/App/Update/AppUpdater.cs
index 9b4780c56..94462bce4 100644
--- a/mRemoteV1/App/Update/AppUpdater.cs
+++ b/mRemoteV1/App/Update/AppUpdater.cs
@@ -276,14 +276,14 @@ namespace mRemoteNG.App.Update
                     }
 #endif
 
-                    using (var md5 = MD5.Create())
+                    using (var cksum = SHA512.Create())
                     {
                         using (var stream = File.OpenRead(CurrentUpdateInfo.UpdateFilePath))
                         {
-                            var hash = md5.ComputeHash(stream);
+                            var hash = cksum.ComputeHash(stream);
                             var hashString = BitConverter.ToString(hash).Replace("-", "").ToUpperInvariant();
                             if (!hashString.Equals(CurrentUpdateInfo.Checksum))
-                                throw new Exception("MD5 Hashes didn't match!");
+                                throw new Exception("SHA512 Hashes didn't match!");
                         }
                     }
                 }