diff --git a/data/release-notes/enterprise-server/3-0/20.yml b/data/release-notes/enterprise-server/3-0/20.yml
index b83329aaf441..7a22e6eda794 100644
--- a/data/release-notes/enterprise-server/3-0/20.yml
+++ b/data/release-notes/enterprise-server/3-0/20.yml
@@ -9,7 +9,6 @@ sections:
     - Some critical services may not have been available on backend nodes in GHES Cluster.
   changes:
     - An additional outer layer of `gzip` compression when creating a cluster support bundle with `ghe-cluster-suport-bundle` is now turned off by default. This outer compression can optionally be applied with the `ghe-cluster-suport-bundle -c` command line option.
-    - Upgraded collectd to version 5.12.0.
     - We have added extra text to the admin console to remind users about the mobile apps' data collection for experience improvement purposes.
   known_issues:
     - On a freshly set up {% data variables.product.prodname_ghe_server %} without any users, an attacker could create the first admin user.
diff --git a/data/release-notes/enterprise-server/3-1/12.yml b/data/release-notes/enterprise-server/3-1/12.yml
index fb6b8860bc5d..90717317d47e 100644
--- a/data/release-notes/enterprise-server/3-1/12.yml
+++ b/data/release-notes/enterprise-server/3-1/12.yml
@@ -11,7 +11,6 @@ sections:
     - Some critical services may not have been available on backend nodes in GHES Cluster.
   changes:
     - An additional outer layer of `gzip` compression when creating a cluster support bundle with `ghe-cluster-suport-bundle` is now turned off by default. This outer compression can optionally be applied with the `ghe-cluster-suport-bundle -c` command line option.
-    - Upgraded collectd to version 5.12.0.
     - We have added extra text to the admin console to remind users about the mobile apps' data collection for experience improvement purposes.
   known_issues:
     - The {% data variables.product.prodname_registry %} npm registry no longer returns a time value in metadata responses. This was done to allow for substantial performance improvements. We continue to have all the data necessary to return a time value as part of the metadata response and will resume returning this value in the future once we have solved the existing performance issues.
diff --git a/data/release-notes/enterprise-server/3-2/4.yml b/data/release-notes/enterprise-server/3-2/4.yml
index 2fa7bd8a0a25..a6a8c5e566dc 100644
--- a/data/release-notes/enterprise-server/3-2/4.yml
+++ b/data/release-notes/enterprise-server/3-2/4.yml
@@ -16,7 +16,6 @@ sections:
     - User defined patterns would not detect secrets in files like `package.json` or `yarn.lock`.
   changes:
     - An additional outer layer of `gzip` compression when creating a cluster support bundle with `ghe-cluster-suport-bundle` is now turned off by default. This outer compression can optionally be applied with the `ghe-cluster-suport-bundle -c` command line option.
-    - Upgraded collectd to version 5.12.0.
     - We have added extra text to the admin console to remind users about the mobile apps' data collection for experience improvement purposes.
   known_issues:
     - On a freshly set up {% data variables.product.prodname_ghe_server %} without any users, an attacker could create the first admin user.
diff --git a/tests/unit/render-content.js b/tests/unit/render-content.js
index 8d560771b713..f392001df5df 100644
--- a/tests/unit/render-content.js
+++ b/tests/unit/render-content.js
@@ -186,14 +186,70 @@ describe('renderContent', () => {
   })
 
   test('does syntax highlighting', async () => {
-    const template = nl(`
+    let template = nl(`
 \`\`\`js
 const example = true
 \`\`\`\`
     `)
-    const html = await renderContent(template)
-    const $ = cheerio.load(html, { xmlMode: true })
+    let html = await renderContent(template)
+    let $ = cheerio.load(html, { xmlMode: true })
     expect($.html().includes('<pre><code class="hljs language-js">')).toBeTruthy()
+    expect($.html().includes('<span class="hljs-keyword">const</span>')).toBeTruthy()
+
+    template = nl(`
+\`\`\`erb
+<% @articles.each do |article| %>
+\`\`\`\`
+    `)
+    html = await renderContent(template)
+    $ = cheerio.load(html, { xmlMode: true })
+    expect($.html().includes('<pre><code class="hljs language-erb">')).toBeTruthy()
+    expect($.html().includes('<span class="hljs-variable">@articles</span>')).toBeTruthy()
+
+    template = nl(`
+\`\`\`http
+POST / HTTP/2
+\`\`\`\`
+    `)
+    html = await renderContent(template)
+    $ = cheerio.load(html, { xmlMode: true })
+    expect($.html().includes('<pre><code class="hljs language-http">')).toBeTruthy()
+    expect($.html().includes('<span class="hljs-keyword">POST</span>')).toBeTruthy()
+
+    template = nl(`
+\`\`\`groovy
+plugins {
+  ...
+  id 'maven-publish'
+}
+\`\`\`\`
+    `)
+    html = await renderContent(template)
+    $ = cheerio.load(html, { xmlMode: true })
+    expect($.html().includes('<pre><code class="hljs language-groovy">')).toBeTruthy()
+    expect(
+      $.html().includes('<span class="hljs-string">&apos;maven-publish&apos;</span>')
+    ).toBeTruthy()
+
+    template = nl(`
+\`\`\`Dockerfile
+FROM alpine:3.10
+\`\`\`\`
+    `)
+    html = await renderContent(template)
+    $ = cheerio.load(html, { xmlMode: true })
+    expect($.html().includes('<pre><code class="hljs language-Dockerfile">')).toBeTruthy()
+    expect($.html().includes('<span class="hljs-keyword">FROM</span>')).toBeTruthy()
+
+    template = nl(`
+\`\`\`Powershell
+$resourceGroupName = "octocat-testgroup"
+\`\`\`\`
+    `)
+    html = await renderContent(template)
+    $ = cheerio.load(html, { xmlMode: true })
+    expect($.html().includes('<pre><code class="hljs language-Powershell">')).toBeTruthy()
+    expect($.html().includes('<span class="hljs-variable">$resourceGroupName</span>')).toBeTruthy()
   })
 
   test('does not autoguess code block language', async () => {