diff --git a/src/test/Test.FAKECore/ReleaseNotesSpecs.cs b/src/test/Test.FAKECore/ReleaseNotesSpecs.cs
index 539334ebc4e..14c8da1113c 100644
--- a/src/test/Test.FAKECore/ReleaseNotesSpecs.cs
+++ b/src/test/Test.FAKECore/ReleaseNotesSpecs.cs
@@ -37,6 +37,7 @@ public class when_parsing_release_notes
 
         static readonly ReleaseNotesHelper.ReleaseNotes expected = ReleaseNotesHelper.ReleaseNotes.New("1.1.10",
             "1.1.10",
+            new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 09, 12)),
             new[]
             {
                 "Support for heterogeneous XML attributes.",
@@ -52,20 +53,20 @@ public class when_parsing_release_notes
 
         It should_parse_empty_notes =
             () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(@"### New in 1.1.10 (Released 2013/09/12)"))
-                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10", FSharpList<string>.Empty));
+                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10", new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 09, 12)), FSharpList<string>.Empty));
 
         It should_parse_simple_format =
             () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(@"
 * 1.1.9 - Infer booleans for ints that only manifest 0 and 1. Support for partially overriding the Schema in CsvProvider.
 * 1.1.10 - Support for heterogeneous XML attributes. Make CsvFile re-entrant."))
-                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10",
+                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10", null,
                     new[] {"Support for heterogeneous XML attributes.", "Make CsvFile re-entrant."}.ToFSharpList()));
 
 
         It should_parse_simple_format_with_dots =
             () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(@"
 * 1.2.0 - Allow currency symbols on decimals. Remove .AsTuple member from CsvProvider. CsvProvider now uses GetSample instead of constructor like the other providers."))
-                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.2.0", "1.2.0",
+                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.2.0", "1.2.0", null,
                     new[]
                     {
                         "Allow currency symbols on decimals.", "Remove .AsTuple member from CsvProvider.",
@@ -98,7 +99,7 @@ public class when_parsing_many_alpha_versions
 #### 2.0.0-alpha001 - December 15 2013
 * A";
         static readonly ReleaseNotesHelper.ReleaseNotes expected =
-            ReleaseNotesHelper.ReleaseNotes.New("2.0.0", "2.0.0-alpha2", new[] { "B" }.ToFSharpList());
+            ReleaseNotesHelper.ReleaseNotes.New("2.0.0", "2.0.0-alpha2", null, new[] { "B" }.ToFSharpList());
 
         It should_parse =
            () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(input)).ShouldEqual(expected);
@@ -131,7 +132,7 @@ public class when_parsing_many_pre_release_versions
 #### 2.0.0-alpha001 - December 15 2013
 * A";
         static readonly ReleaseNotesHelper.ReleaseNotes expected =
-            ReleaseNotesHelper.ReleaseNotes.New("2.0.0", "2.0.0-rc007", new[] { "A" }.ToFSharpList());
+            ReleaseNotesHelper.ReleaseNotes.New("2.0.0", "2.0.0-rc007", null, new[] { "A" }.ToFSharpList());
 
         It should_parse =
            () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(input)).ShouldEqual(expected);
@@ -159,6 +160,7 @@ public class when_parsing_release_notes_in_reverse_order
 
         static readonly ReleaseNotesHelper.ReleaseNotes expected = ReleaseNotesHelper.ReleaseNotes.New("1.1.10",
             "1.1.10",
+            new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 09, 12)),
             new[]
             {
                 "Support for heterogeneous XML attributes.",
@@ -174,13 +176,13 @@ public class when_parsing_release_notes_in_reverse_order
 
         It should_parse_empty_notes =
             () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(@"### New in 1.1.10 (Released 2013/09/12)"))
-                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10", FSharpList<string>.Empty));
+                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10", new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 09, 12)), FSharpList<string>.Empty));
 
         It should_parse_simple_format =
             () => ReleaseNotesHelper.parseReleaseNotes(Notes.FromString(@"
 * 1.1.10 - Support for heterogeneous XML attributes. Make CsvFile re-entrant.
 * 1.0.9 - Infer booleans for ints that only manifest 0 and 1. Support for partially overriding the Schema in CsvProvider."))
-                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10",
+                .ShouldEqual(ReleaseNotesHelper.ReleaseNotes.New("1.1.10", "1.1.10", null,
                     new[] {"Support for heterogeneous XML attributes.", "Make CsvFile re-entrant."}.ToFSharpList()));
 
         It should_throws_on_empty_seq_input =
@@ -215,6 +217,7 @@ public class when_parsing_all_release_notes
 
         static readonly ReleaseNotesHelper.ReleaseNotes expected = ReleaseNotesHelper.ReleaseNotes.New("1.1.10",
             "1.1.10",
+            new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 09, 12)),
             new[]
             {
                 "Support for heterogeneous XML attributes.",
@@ -226,6 +229,7 @@ public class when_parsing_all_release_notes
                 .ToFSharpList());
 
         static readonly ReleaseNotesHelper.ReleaseNotes expected2 = ReleaseNotesHelper.ReleaseNotes.New("1.1.9", "1.1.9",
+            new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 07, 21)),
             new[] {"Infer booleans for ints that only manifest 0 and 1."}
                 .ToFSharpList());
 
@@ -249,6 +253,7 @@ public class when_parsing_octokit_release_notes
 
 
         static readonly ReleaseNotesHelper.ReleaseNotes expected = ReleaseNotesHelper.ReleaseNotes.New("0.1.3", "0.1.3",
+            new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 11, 5)),
             new[]
             {
                 "New Xamarin Component store versions of Octokit.net",
@@ -275,6 +280,7 @@ public class when_parsing_machine_release_notes
 
 
         static readonly ReleaseNotesHelper.ReleaseNotes expected = ReleaseNotesHelper.ReleaseNotes.New("1.8.0", "1.8.0",
+            null,
             new[]
             {
                 "When the subject's constructor throws an exception, it is now bubbled up and shown in the failure message.",
@@ -303,6 +309,7 @@ public class when_parsing_semver_release_notes
         static readonly ReleaseNotesHelper.ReleaseNotes expected =
             ReleaseNotesHelper.ReleaseNotes.New("1.0.0",
                 "1.0.0-rc.1",
+                new Microsoft.FSharp.Core.FSharpOption<DateTime>(new DateTime(2013, 10, 30)),
                 new[]
                 {
                     "Initial release"
@@ -312,6 +319,7 @@ public class when_parsing_semver_release_notes
         static readonly ReleaseNotesHelper.ReleaseNotes expected2 =
             ReleaseNotesHelper.ReleaseNotes.New("1.0.0",
                 "1.0.0-beta.2",
+                null,
                 new[]
                 {
                     "Fixed problems with Microsoft.Threading.Tasks"