diff --git a/plug-ins/SilenceMarker.ny b/plug-ins/SilenceMarker.ny
index b7bab1634..5355829d1 100644
--- a/plug-ins/SilenceMarker.ny
+++ b/plug-ins/SilenceMarker.ny
@@ -5,6 +5,7 @@ $name (_ "Silence Finder")
 $manpage "Silence_Finder"
 $action (_ "Finding silence...")
 $author (_ "Alex S. Brown")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; by Alex S. Brown, PMP (http://www.alexsbrown.com)
diff --git a/plug-ins/SoundFinder.ny b/plug-ins/SoundFinder.ny
index e5bc90084..35973c835 100644
--- a/plug-ins/SoundFinder.ny
+++ b/plug-ins/SoundFinder.ny
@@ -5,6 +5,7 @@ $name (_ "Sound Finder")
 $manpage "Sound_Finder"
 $action (_ "Finding sound...")
 $author (_ "Jeremy R. Brown")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; by Jeremy R. Brown (http://www.jeremy-brown.com/)
diff --git a/plug-ins/SpectralEditMulti.ny b/plug-ins/SpectralEditMulti.ny
index b8f310a52..72b9855ce 100644
--- a/plug-ins/SpectralEditMulti.ny
+++ b/plug-ins/SpectralEditMulti.ny
@@ -5,6 +5,7 @@ $name (_ "Spectral edit multi tool")
 $manpage "Spectral_edit_multi_tool"
 $action (_ "Filtering...")
 $author (_ "Paul Licameli")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; SpectralEditMulti.ny by Paul Licameli, November 2014.
diff --git a/plug-ins/SpectralEditParametricEQ.ny b/plug-ins/SpectralEditParametricEQ.ny
index 7372273aa..e459ececa 100644
--- a/plug-ins/SpectralEditParametricEQ.ny
+++ b/plug-ins/SpectralEditParametricEQ.ny
@@ -6,6 +6,7 @@ $name (_ "Spectral edit parametric EQ")
 $manpage "Spectral_edit_parametric_EQ"
 $action (_ "Filtering...")
 $author (_ "Paul Licameli")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; SpectralEditParametricEQ.ny by Paul Licameli, November 2014.
diff --git a/plug-ins/SpectralEditShelves.ny b/plug-ins/SpectralEditShelves.ny
index 7a1b20b8a..c0ba3399a 100644
--- a/plug-ins/SpectralEditShelves.ny
+++ b/plug-ins/SpectralEditShelves.ny
@@ -6,6 +6,7 @@ $name (_ "Spectral edit shelves")
 $manpage "Spectral_edit_shelves"
 $action (_ "Filtering...")
 $author (_ "Paul Licameli")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 
diff --git a/plug-ins/StudioFadeOut.ny b/plug-ins/StudioFadeOut.ny
index dcb3272f7..c12f54c42 100644
--- a/plug-ins/StudioFadeOut.ny
+++ b/plug-ins/StudioFadeOut.ny
@@ -5,6 +5,7 @@ $name (_ "Studio Fade Out")
 $manpage "Fades#studio_fadeout"
 $action (_ "Applying Fade...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; StudioFadeOut.ny by Steve Daulton December 2012.
diff --git a/plug-ins/adjustable-fade.ny b/plug-ins/adjustable-fade.ny
index 77c9ca14f..b741acf1a 100644
--- a/plug-ins/adjustable-fade.ny
+++ b/plug-ins/adjustable-fade.ny
@@ -8,6 +8,7 @@ $manpage "Adjustable_Fade"
 $debugbutton false
 $action (_ "Applying Fade...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; adjustable-fade.ny by Steve Daulton Dec 2012
diff --git a/plug-ins/beat.ny b/plug-ins/beat.ny
index 242c7e1d9..e4ccc0bd3 100644
--- a/plug-ins/beat.ny
+++ b/plug-ins/beat.ny
@@ -5,6 +5,7 @@ $name (_ "Beat Finder")
 $manpage "Beat_Finder"
 $action (_ "Finding beats...")
 $author (_ "Audacity")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; Released under terms of the GNU General Public License version 2:
diff --git a/plug-ins/clipfix.ny b/plug-ins/clipfix.ny
index f4a23d64b..67e4b9e54 100644
--- a/plug-ins/clipfix.ny
+++ b/plug-ins/clipfix.ny
@@ -6,6 +6,7 @@ $name (_ "Clip Fix")
 $manpage "Clip_Fix"
 $action (_ "Reconstructing clips...")
 $author (_ "Benjamin Schwartz and Steve Daulton")
+$release 2.3.0
 $copyright (_ "Licensing confirmed under terms of the GNU General Public License version 2")
 
 ;; Released under terms of the GNU General Public License version 2:
diff --git a/plug-ins/crossfadeclips.ny b/plug-ins/crossfadeclips.ny
index 20cd6d65d..dda282117 100644
--- a/plug-ins/crossfadeclips.ny
+++ b/plug-ins/crossfadeclips.ny
@@ -7,6 +7,7 @@ $name (_ "Crossfade Clips")
 $manpage "Crossfade_Clips"
 $action (_ "Crossfading...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2") 
 
 
diff --git a/plug-ins/crossfadetracks.ny b/plug-ins/crossfadetracks.ny
index 3bae8bbf0..71fc75c74 100644
--- a/plug-ins/crossfadetracks.ny
+++ b/plug-ins/crossfadetracks.ny
@@ -7,6 +7,7 @@ $debugbutton disabled
 $action (_ "Crossfading...")
 $preview selection
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; crossfadetracks.ny by Steve Daulton Nov 2014 / Sep 2015
diff --git a/plug-ins/delay.ny b/plug-ins/delay.ny
index 1e60219aa..1ff55ff98 100644
--- a/plug-ins/delay.ny
+++ b/plug-ins/delay.ny
@@ -6,6 +6,7 @@ $name (_ "Delay")
 $manpage "Delay"
 $action (_ "Applying Delay Effect...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; by Steve Daulton, July 2012.
diff --git a/plug-ins/equalabel.ny b/plug-ins/equalabel.ny
index cb0a58287..f99b9f0d2 100644
--- a/plug-ins/equalabel.ny
+++ b/plug-ins/equalabel.ny
@@ -5,6 +5,7 @@ $name (_ "Regular Interval Labels")
 $manpage "Regular_Interval_Labels"
 $action (_ "Adding equally-spaced labels to the label track...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; Original version by David R. Sky (http://www.garyallendj.com/davidsky/) 2007.
diff --git a/plug-ins/highpass.ny b/plug-ins/highpass.ny
index cd29d345e..150f3966c 100644
--- a/plug-ins/highpass.ny
+++ b/plug-ins/highpass.ny
@@ -7,6 +7,7 @@ $manpage "High-Pass_Filter"
 $debugbutton disabled
 $action (_ "Performing High-Pass Filter...")
 $author (_ "Dominic Mazzoni")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; Released under terms of the GNU General Public License version 2:
diff --git a/plug-ins/limiter.ny b/plug-ins/limiter.ny
index 224b0025b..b870b8e5b 100644
--- a/plug-ins/limiter.ny
+++ b/plug-ins/limiter.ny
@@ -7,6 +7,7 @@ $debugbutton false
 $action (_ "Limiting...")
 $preview enabled
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; limiter.ny by Steve Daulton November 2011, updated May 2015.
diff --git a/plug-ins/lowpass.ny b/plug-ins/lowpass.ny
index 7c2b0c56a..523f0bc72 100644
--- a/plug-ins/lowpass.ny
+++ b/plug-ins/lowpass.ny
@@ -7,6 +7,7 @@ $manpage "Low-Pass_Filter"
 $debugbutton disabled
 $action (_ "Performing Low-Pass Filter...")
 $author (_ "Dominic Mazzoni")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; Released under terms of the GNU General Public License version 2:
diff --git a/plug-ins/notch.ny b/plug-ins/notch.ny
index b87ef538c..6a67437e0 100644
--- a/plug-ins/notch.ny
+++ b/plug-ins/notch.ny
@@ -7,6 +7,7 @@ $manpage "Notch_Filter"
 $debugbutton false
 $action (_ "Applying Notch Filter...")
 $author (_ "Steve Daulton and Bill Wharrie")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; notch.ny by Steve Daulton and Bill Wharrie
diff --git a/plug-ins/pluck.ny b/plug-ins/pluck.ny
index 27fd9382f..4918046d1 100644
--- a/plug-ins/pluck.ny
+++ b/plug-ins/pluck.ny
@@ -8,6 +8,7 @@ $preview linear
 $action (_ "Generating pluck sound...")
 $info (_ "MIDI values for C notes: 36, 48, 60 [middle C], 72, 84, 96.")
 $author (_ "David R.Sky")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; Released under terms of the GNU General Public License version 2:
diff --git a/plug-ins/rhythmtrack.ny b/plug-ins/rhythmtrack.ny
index de537ba50..2a049b269 100644
--- a/plug-ins/rhythmtrack.ny
+++ b/plug-ins/rhythmtrack.ny
@@ -6,6 +6,7 @@ $manpage "Rhythm_Track"
 $preview linear
 $action (_ "Generating Rhythm...")
 $author (_ "Dominic Mazzoni")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; by Dominic Mazzoni, David R. Sky and Steve Daulton.
diff --git a/plug-ins/rissetdrum.ny b/plug-ins/rissetdrum.ny
index cb45f6c77..b260bb1ec 100644
--- a/plug-ins/rissetdrum.ny
+++ b/plug-ins/rissetdrum.ny
@@ -7,6 +7,7 @@ $name (_ "Risset Drum")
 $manpage "Risset_Drum"
 $action (_ "Generating Risset Drum...")
 $author (_ "Steven Jones")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; rissetdrum.ny by Steven Jones, after Jean Claude Risset.
diff --git a/plug-ins/sample-data-export.ny b/plug-ins/sample-data-export.ny
index 10f4b4ac8..8eba1cd42 100644
--- a/plug-ins/sample-data-export.ny
+++ b/plug-ins/sample-data-export.ny
@@ -6,6 +6,7 @@ $manpage "Sample_Data_Export"
 $debugbutton false
 $action (_ "Analyzing...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 
diff --git a/plug-ins/sample-data-import.ny b/plug-ins/sample-data-import.ny
index 3352a05a3..520cf4a93 100644
--- a/plug-ins/sample-data-import.ny
+++ b/plug-ins/sample-data-import.ny
@@ -5,6 +5,7 @@ $name (_ "Sample Data Import")
 $manpage "Sample_Data_Import"
 $action (_ "Reading and rendering samples...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 $control filename (_ "Select file") file "" "*default*/sample-data.txt" "Text file|*.txt;*.TXT|All files|*.*;*" "open,exists"
diff --git a/plug-ins/tremolo.ny b/plug-ins/tremolo.ny
index 49add9e43..cec3214b0 100644
--- a/plug-ins/tremolo.ny
+++ b/plug-ins/tremolo.ny
@@ -7,6 +7,7 @@ $manpage "Tremolo"
 $debugbutton disabled
 $action (_ "Applying Tremolo...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; tremolo.ny by Steve Daulton (www.easyspacepro.com) July 2012.
diff --git a/plug-ins/vocalrediso.ny b/plug-ins/vocalrediso.ny
index 147b8e6dd..98c9de9ae 100644
--- a/plug-ins/vocalrediso.ny
+++ b/plug-ins/vocalrediso.ny
@@ -6,6 +6,7 @@ $name (_ "Vocal Reduction and Isolation")
 $manpage "Vocal_Reduction_and_Isolation"
 $action (_ "Applying Action...")
 $author (_ "Robert Haenggi")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; vocrediso.ny, based on rjh-stereo-tool.ny
diff --git a/plug-ins/vocalremover.ny b/plug-ins/vocalremover.ny
index ce095fbc8..00177df66 100644
--- a/plug-ins/vocalremover.ny
+++ b/plug-ins/vocalremover.ny
@@ -6,6 +6,7 @@ $name (_ "Vocal Remover")
 $manpage "Vocal_Remover"
 $action (_ "Removing center-panned audio...")
 $author (_ "Steve Daulton")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; This version of vocalremover.ny by Steve Daulton June 2013.
diff --git a/plug-ins/vocoder.ny b/plug-ins/vocoder.ny
index 363f80a5f..13a77dc56 100644
--- a/plug-ins/vocoder.ny
+++ b/plug-ins/vocoder.ny
@@ -6,6 +6,7 @@ $name (_ "Vocoder")
 $manpage "Vocoder"
 $action (_ "Processing Vocoder...")
 $author (_ "Edgar-RFT")
+$release 2.3.0
 $copyright (_ "Released under terms of the GNU General Public License version 2")
 
 ;; vocoder.ny by Edgar-RFT
diff --git a/src/effects/nyquist/Nyquist.cpp b/src/effects/nyquist/Nyquist.cpp
index 64c674b8f..fe9244a53 100644
--- a/src/effects/nyquist/Nyquist.cpp
+++ b/src/effects/nyquist/Nyquist.cpp
@@ -135,6 +135,7 @@ NyquistEffect::NyquistEffect(const wxString &fName)
    mIsSal = false;
    mOK = false;
    mAuthor = XO("n/a");
+   mReleaseVersion = XO("n/a");
    mCopyright = XO("n/a");
 
    // set clip/split handling when applying over clip boundary.
@@ -221,7 +222,7 @@ IdentInterfaceSymbol NyquistEffect::GetVendor()
 
 wxString NyquistEffect::GetVersion()
 {
-   return XO("n/a");
+   return mReleaseVersion;
 }
 
 wxString NyquistEffect::GetDescription()
@@ -1865,6 +1866,12 @@ bool NyquistEffect::Parse(
       return true;
    }
 
+   if (len >= 2 && tokens[0] == wxT("release")) {
+      // Value must be quoted if the release version string contains spaces.
+      mReleaseVersion = UnQuote(tokens[1]);
+      return true;
+   }
+
    if (len >= 2 && tokens[0] == wxT("copyright")) {
       mCopyright = UnQuote(tokens[1]);
       return true;
diff --git a/src/effects/nyquist/Nyquist.h b/src/effects/nyquist/Nyquist.h
index 534a64389..a1833a768 100644
--- a/src/effects/nyquist/Nyquist.h
+++ b/src/effects/nyquist/Nyquist.h
@@ -231,6 +231,10 @@ private:
    wxString          mAction; // translatable
    wxString          mInfo;   // translatable
    wxString          mAuthor;
+   // Version number of the specific plug-in (not to be confused with mVersion)
+   // For shipped plug-ins this will be the same as the Audacity release version
+   // when the plug-in was last modified.
+   wxString          mReleaseVersion;
    wxString          mCopyright;
    wxString          mManPage;   // ONLY use if a help page exists in the manual.
    wxString          mHelpFile;
@@ -245,7 +249,7 @@ private:
    bool              mProjectChanged;
    wxString          mDebugOutput;
 
-   int               mVersion;
+   int               mVersion;   // Syntactic version of Nyquist plug-in (not to be confused with mReleaseVersion)
    std::vector<NyqControl>   mControls;
 
    unsigned          mCurNumChannels;