diff --git a/.README.html b/.README.html
index a82a4334..0395eeb5 100644
--- a/.README.html
+++ b/.README.html
@@ -237,6 +237,9 @@ <h2 id="collection-requirements">Collection requirements</h2>
 <div class="sourceCode" id="cb2"><pre
 class="sourceCode bash"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">ansible-galaxy</span> collection install <span class="at">-vv</span> <span class="at">-r</span> meta/collection-requirements.yml</span></code></pre></div>
 <h1 id="variables">Variables</h1>
+<p>Type, required-field, and choice validation is enforced by
+<code>meta/argument_specs.yml</code>. Role tasks enforce cross-field
+validation.</p>
 <table>
 <thead>
 <tr>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dcd5fd5f..7f3b8565 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,21 @@
 Changelog
 =========
 
+[1.10.0] - 2026-09-17
+--------------------
+
+### New Features
+
+- feat: Add argument spec validation to Certificate role (#359)
+
+### Other Changes
+
+- ci(build_docs): fix pandoc container syntax [citest_skip] (#364)
+- refactor: Relax collection constraints, gate vendored modules by python version, update ci versions [citest_skip] (#370)
+- ci: do not run ci tests by default, require citest comment or label [citest_skip] (#371)
+- ci: replace weekly_ci with periodic_ci, stagger schedules [citest_skip] (#372)
+- ci: update status when action triggered by issue comment (#373)
+
 [1.9.1] - 2026-08-20
 --------------------