diff --git a/eleventy.config.ts b/eleventy.config.ts
index 58fcfbd89a..deddd13888 100644
--- a/eleventy.config.ts
+++ b/eleventy.config.ts
@@ -3,6 +3,7 @@ import compact from "lodash-es/compact";
 import { copyFile } from "fs/promises";
 
 import { CustomLiquid } from "11ty/CustomLiquid";
+import { resolveDecimalVersion } from "11ty/common";
 import {
   actRules,
   assertIsWcagVersion,
@@ -101,7 +102,7 @@ const understandingNav = await generateUnderstandingNavMap(principles, understan
 // Declare static global data up-front so we can build typings from it
 const globalData = {
   version,
-  versionDecimal: version.split("").join("."),
+  versionDecimal: resolveDecimalVersion(version),
   techniques, // Used for techniques/index.html
   technologies, // Used for techniques/index.html
   technologyTitles, // Used for techniques/index.html
@@ -263,7 +264,7 @@ export default function (eleventyConfig: any) {
           !isGuidelineObsolete(flatGuidelines[this.page.fileSlug])
         ) {
           if (process.env.WCAG_VERBOSE) {
-            const since = technique.obsoleteSince!.split("").join(".");
+            const since = resolveDecimalVersion(technique.obsoleteSince!);
             console.warn(
               `linkTechniques in ${this.page.inputPath}: ` +
                 `skipping obsolete technique ${id} (as of ${since})`
diff --git a/techniques/index.html b/techniques/index.html
index 2f6f6245dc..59fbe73e1f 100644
--- a/techniques/index.html
+++ b/techniques/index.html
@@ -4,7 +4,7 @@
 		<meta charset="UTF-8"/>
 		<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"/>
 		
-		<title>All WCAG 2.2 Techniques | WAI | W3C</title>
+		<title>All WCAG {{ versionDecimal }} Techniques | WAI | W3C</title>
 		<link rel="stylesheet" href="https://w3.org/WAI/assets/css/style.css"/>
 		<link rel="stylesheet" type="text/css" href="base.css"/>
 	</head>
@@ -34,7 +34,7 @@
          </aside>
 
 			<main id="main" class="main-content standalone-resource__main">
-				<h1 id="title" class="title p-name">Techniques for WCAG 2.2</h1>
+				<h1 id="title" class="title p-name">Techniques for WCAG {{ versionDecimal }}</h1>
 		<aside class="box">
 			<header class="box-h ">Summary</header>
 			<div class="box-i">
diff --git a/understanding/index.html b/understanding/index.html
index 163d088a0f..7e0b1fe689 100644
--- a/understanding/index.html
+++ b/understanding/index.html
@@ -4,7 +4,7 @@
 		<meta charset="UTF-8"/>
 		<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"/>
 			
-		<title>Understanding WCAG 2.2 | WAI | W3C</title>
+		<title>Understanding WCAG {{ versionDecimal }} | WAI | W3C</title>
 		<link rel="stylesheet" href="https://w3.org/WAI/assets/css/style.css"/>
 		<link rel="stylesheet" type="text/css" href="base.css"/>
 	</head>
@@ -29,7 +29,7 @@
 
 		<main id="main" class="main-content standalone-resource__main">
 				
-		<h1 id="title" class="title p-name">All WCAG 2.2 Understanding Docs</h1>
+		<h1 id="title" class="title p-name">All WCAG {{ versionDecimal }} Understanding Docs</h1>
 				<aside class="box">
 					<header class="box-h ">Summary</header>
 					<div class="box-i">