diff --git a/content/blog/mail_server_alpine_postfix_dovecot_tutorial/index.md b/content/blog/mail_server_alpine_postfix_dovecot_tutorial/index.md
index abf2292..f65c3a4 100644
--- a/content/blog/mail_server_alpine_postfix_dovecot_tutorial/index.md
+++ b/content/blog/mail_server_alpine_postfix_dovecot_tutorial/index.md
@@ -1926,6 +1926,13 @@ admins can submit their domain and IP address to indicate trustworthiness.
 Finally, you can [PGP-encrypt users' incoming mail with their public keys, much like
 Protonmail](/blog/pgp_encrypting_all_incoming_emails/).
 
+# Changelog
+
+* **2025/06/04:** Dovecot's 2.4 update introduced [many breaking changes to the config
+                  syntax](https://doc.dovecot.org/2.4.1/core/config/service.html#protocol). This post has been updated
+                  to reflect the 2.4 syntax. If you want to set up a 2.3 server, see [this
+                  commit](https://git.revsuine.xyz/revsuine/revsuine.xyz/src/commit/94d49bae8315a6ca761859591eb8d9b7566718e7/content/blog/mail_server_alpine_postfix_dovecot_tutorial/index.md)
+
 <!-- FOOTNOTES: -->
 
 [^server_trust]: This is only true to the extent that your server is not compromised. You could say there's an order of