diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index e988ed3..2c8c56a 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -25,7 +25,7 @@ jobs:
           AGENT_TOOLSDIRECTORY: /opt/hostedtoolcache
 
       - name: Cache poetry install
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.local
           key: poetry-${{ env.POETRY_VERSION }}-${{ matrix.python-version }}-${{ runner.os }}
@@ -39,7 +39,7 @@ jobs:
 
       - name: Cache deps
         id: cache-deps
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: .venv
           key: pydeps-${{ hashFiles('**/poetry.lock') }}-${{ env.POETRY_VERSION }}-${{ matrix.python-version }}-${{ runner.os }}
diff --git a/byteguide/templates/faq.html b/byteguide/templates/faq.html
index 5daf096..0279de6 100644
--- a/byteguide/templates/faq.html
+++ b/byteguide/templates/faq.html
@@ -249,6 +249,16 @@ <h5>Upload version to project</h5>
     <b>7. Show</b><br/><br/>
     <img src="{{ url_for('static', filename='guide-1.png')}}" class="resize"/>
     <br/>
+    <hr>
+
+    <h3>Known Issues</h3>
+    <hr/>
+    <div>
+        <ul>
+            <li><strong>Pre-release versions are not supported.</strong> The version is extracted by taking the value after the last <code>-</code> in the filename. If a pre-release tag is used (e.g. <code>myproject-1.0.0-alpha.zip</code>), the program will interpret <code>alpha</code> as the version instead of <code>1.0.0-alpha</code>. Only stable release versions without a <code>-</code> in the version string should be used (e.g. <code>myproject-1.0.0.zip</code>).</li>
+        </ul>
+    </div>
+    <br/>
 
     {% if copyright %}
     <hr>