diff --git a/assets/js/doclinks.js b/assets/js/doclinks.js
index 89c5c2a11..fc048bcf0 100644
--- a/assets/js/doclinks.js
+++ b/assets/js/doclinks.js
@@ -1,63 +1,54 @@
 'use strict';
 
 // Wraps some elements in anchor tags referencing to the Symfony documentation
-$(function() {
-    var $modal = $('#sourceCodeModal');
-    var $controllerCode = $modal.find('code.php');
-    var $templateCode = $modal.find('code.twig');
+document.addEventListener('DOMContentLoaded', function() {
+    const modalElt = document.querySelector('#sourceCodeModal');
+    if (!modalElt) {
+        return;
+    }
+    const controllerCode = modalElt.querySelector('code.php');
+    const templateCode = modalElt.querySelector('code.twig');
 
     function anchor(url, content) {
         return '<a class="doclink" target="_blank" href="' + url + '">' + content + '</a>';
-    };
+    }
 
     function wrap(content, links) {
         return content.replace(
             new RegExp(Object.keys(links).join('|'), 'g'),
             token => anchor(links[token], token)
         );
-    };
+    }
 
-    // Wraps links to the Symfony documentation
-    $modal.find('.hljs-comment').each(function() {
-        $(this).html($(this).html().replace(/https:\/\/symfony.com\/doc\/[\w/.#-]+/g, function(url) {
-            return anchor(url, url);
-        }));
+    // Wrap Symfony Doc urls in comments
+    [...modalElt.querySelectorAll('.hljs-comment')].forEach((commentElt) => {
+        commentElt.innerHTML = commentElt.innerHTML.replace(/https:\/\/symfony.com\/[\w/.#-]+/g, (url) => anchor(url, url));
     });
 
-    // Wraps Symfony's attributes
-    var attributes = {
-        'Cache': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/cache.html',
-        'IsGranted': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/security.html#isgranted',
-        'ParamConverter': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html',
-        'Route': 'https://symfony.com/doc/current/routing.html#creating-routes-as-attributes-or-annotations',
-        'Security': 'https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/security.html#security'
+    // Wraps Symfony PHP attributes in code
+    const attributes = {
+        'Cache': 'https://symfony.com/doc/current/http_cache.html#http-cache-expiration-intro',
+        'Route': 'https://symfony.com/doc/current/routing.html#creating-routes-as-attributes',
+        'IsGranted': 'https://symfony.com/doc/current/security.html#security-securing-controller-annotations'
     };
-
-    $controllerCode.find('.hljs-meta').each(function() {
-        var src = $(this).text();
-
-        $(this).html(wrap(src, attributes));
+    [...controllerCode.querySelectorAll('.hljs-meta')].forEach((elt) => {
+        elt.innerHTML = wrap(elt.textContent, attributes);
     });
 
     // Wraps Twig's tags
-    $templateCode.find('.hljs-template-tag + .hljs-name').each(function() {
-        var tag = $(this).text();
-
+    [...templateCode.querySelectorAll('.hljs-template-tag + .hljs-name')].forEach((elt) => {
+        const tag = elt.textContent;
         if ('else' === tag || tag.match(/^end/)) {
             return;
         }
-
-        var url = 'https://twig.symfony.com/doc/3.x/tags/' + tag + '.html#' + tag;
-
-        $(this).html(anchor(url, tag));
+        const url = 'https://twig.symfony.com/doc/3.x/tags/' + tag + '.html#' + tag;
+        elt.innerHTML = anchor(url, tag);
     });
 
     // Wraps Twig's functions
-    $templateCode.find('.hljs-template-variable > .hljs-name').each(function() {
-        var func = $(this).text();
-
-        var url = 'https://twig.symfony.com/doc/3.x/functions/' + func + '.html#' + func;
-
-        $(this).html(anchor(url, func));
+    [...templateCode.querySelectorAll('.hljs-template-variable > .hljs-name')].forEach((elt) => {
+        const func = elt.textContent;
+        const url = 'https://twig.symfony.com/doc/3.x/functions/' + func + '.html#' + func;
+        elt.innerHTML = anchor(url, func);
     });
 });
diff --git a/src/Controller/BlogController.php b/src/Controller/BlogController.php
index 6b4711c01..0a8afa60d 100644
--- a/src/Controller/BlogController.php
+++ b/src/Controller/BlogController.php
@@ -70,7 +70,7 @@ public function index(Request $request, int $page, string $_format, PostReposito
      * after performing a database query looking for a Post with the 'slug'
      * value given in the route.
      *
-     * See https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html
+     * See https://symfony.com/doc/current/doctrine.html#automatically-fetching-objects-entityvalueresolver
      */
     #[Route('/posts/{slug}', name: 'blog_post', methods: ['GET'])]
     public function postShow(Post $post): Response
@@ -93,10 +93,10 @@ public function postShow(Post $post): Response
     }
 
     /**
-     * NOTE: The ParamConverter mapping is required because the route parameter
+     * NOTE: The #[MapEntity] mapping is required because the route parameter
      * (postSlug) doesn't match any of the Doctrine entity properties (slug).
      *
-     * See https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html#doctrine-converter
+     * See https://symfony.com/doc/current/doctrine.html#doctrine-entity-value-resolver
      */
     #[Route('/comment/{postSlug}/new', name: 'comment_new', methods: ['POST'])]
     #[IsGranted('IS_AUTHENTICATED')]
@@ -140,7 +140,9 @@ public function commentNew(
      * a route name for it.
      *
      * The "id" of the Post is passed in and then turned into a Post object
-     * automatically by the ParamConverter.
+     * automatically by the ValueResolver.
+     *
+     * See https://symfony.com/doc/current/doctrine.html#automatically-fetching-objects-entityvalueresolver
      */
     public function commentForm(Post $post): Response
     {