diff --git a/doc/authors.md b/doc/authors.md
index 7094aff8b..a6dedffbc 100644
--- a/doc/authors.md
+++ b/doc/authors.md
@@ -1,7 +1,7 @@
 Zcash Contributors
 ==================
 
-Jack Grigg (514)
+Jack Grigg (518)
 Simon Liu (281)
 Sean Bowe (193)
 Daira Hopwood (102)
@@ -19,6 +19,7 @@ fanquake (5)
 MarcoFalke (5)
 Johnathan Corgan (5)
 Gregory Maxwell (5)
+Ariel Gabizon (5)
 Philip Kaufmann (4)
 Peter Todd (4)
 Patrick Strateman (4)
@@ -27,7 +28,6 @@ Karl-Johan Alm (4)
 Jeff Garzik (4)
 David Mercer (4)
 Daniel Cousens (4)
-Ariel Gabizon (4)
 lpescher (3)
 kozyilmaz (3)
 Pavel Janík (3)
diff --git a/zcutil/release-notes.py b/zcutil/release-notes.py
index 3413aacaf..01f658f07 100755
--- a/zcutil/release-notes.py
+++ b/zcutil/release-notes.py
@@ -70,6 +70,10 @@ def document_authors():
         f.write('Zcash Contributors\n==================\n\n')
         total_contrib = {}
         for notes in os.listdir(os.path.join(doc_dir, 'release-notes')):
+            # Commits are duplicated across beta, RC and final release notes,
+            # except for the pre-launch release notes.
+            if ('-beta' in notes or '-rc' in notes) and '1.0.0-' not in notes:
+                continue
             authors = authors_in_release_notes(notes)
             for author in authors:
                 commits = int(authors[author])