diff --git a/layouts/shortcodes/since.html b/layouts/shortcodes/since.html
new file mode 100644
index 0000000..624be86
--- /dev/null
+++ b/layouts/shortcodes/since.html
@@ -0,0 +1,3 @@
+<blockquote class="note callout">
+  <div><strong>Since {{ .Get 0 }}</strong> {{ trim .Inner " \n" | markdownify }}</div>
+</blockquote>