diff --git a/src/gitchangelog/gitchangelog.py b/src/gitchangelog/gitchangelog.py
index 1f80d3e..2036550 100755
--- a/src/gitchangelog/gitchangelog.py
+++ b/src/gitchangelog/gitchangelog.py
@@ -774,6 +774,13 @@ def authors(self):
         co_authors = getattr(self, 'trailer_co_authored_by', [])
         co_authors = co_authors if isinstance(co_authors, list) else [co_authors]
         return sorted(co_authors + ["%s <%s>" % (self.author_name, self.author_email)])
+    
+    @property
+    def author_github(self):
+        if not self.author_email:
+            return ""
+        sub = re.search("\+(.*?)\@", self.author_email)
+        return sub.group(1) if sub else ""
 
     @property
     def date(self):
@@ -1174,7 +1181,7 @@ def rest_title(label, char="="):
 
     def render_version(version):
         title = (
-            "%s (%s)" % (version["tag"], version["date"])
+            "[%s] - %s" % (version["tag"], version["date"])
             if version["tag"]
             else opts["unreleased_version_label"]
         )
@@ -1231,7 +1238,7 @@ def mustache(template_name):
         def stuffed_versions(versions, opts):
             for version in versions:
                 title = (
-                    "%s (%s)" % (version["tag"], version["date"])
+                    "[%s] - %s" % (version["tag"], version["date"])
                     if version["tag"]
                     else opts["unreleased_version_label"]
                 )
@@ -1480,6 +1487,7 @@ def versions_data_iter(
                 {
                     "author": commit.author_name,
                     "authors": commit.author_names,
+                    "author_github": commit.author_github,
                     "subject": subject_process(commit.subject),
                     "body": body_process(commit.body),
                     "commit": commit,