removing some outdated HTML5 stuff (mdn#5116)

* removing some outdated HTML5 stuff * fix slug * copy edit Co-authored-by: Chris Mills <[email protected]>
dwgrth · May 24, 2021 · 0e095fb · 0e095fb
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diff --git a/files/en-us/_redirects.txt b/files/en-us/_redirects.txt
@@ -3997,14 +3997,11 @@
 /en-US/docs/HTML/Forms_in_HTML	/en-US/docs/Learn/Forms
 /en-US/docs/HTML/Forms_in_HTML5	/en-US/docs/Learn/Forms
 /en-US/docs/HTML/Global_attributes	/en-US/docs/Web/HTML/Global_attributes
-/en-US/docs/HTML/HTML5	/en-US/docs/Web/Guide/HTML/HTML5
-/en-US/docs/HTML/HTML5/Constraint_validation	/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation
+/en-US/docs/HTML/HTML5/Constraint_validation	/en-US/docs/Web/Guide/HTML/Constraint_validation
 /en-US/docs/HTML/HTML5/Forms_in_HTML5	/en-US/docs/Learn/Forms
-/en-US/docs/HTML/HTML5/HTML5_Parser	/en-US/docs/Web/Guide/HTML/HTML5/HTML5_Parser
+/en-US/docs/HTML/HTML5/HTML5_Parser	/en-US/docs/Learn/HTML
 /en-US/docs/HTML/HTML5/HTML5_Tags_List	/en-US/docs/Web/HTML/Element
-/en-US/docs/HTML/HTML5/HTML5_Thematic_Classification	/en-US/docs/Web/Guide/HTML/HTML5
 /en-US/docs/HTML/HTML5/HTML5_element_list	/en-US/docs/Web/HTML/Element
-/en-US/docs/HTML/HTML5/Introduction_to_HTML5	/en-US/docs/Web/Guide/HTML/HTML5/Introduction_to_HTML5
 /en-US/docs/HTML/HTML5/Optimizing_Your_Pages_for_Speculative_Parsing	/en-US/docs/Glossary/speculative_parsing
 /en-US/docs/HTML/HTML_Elements	/en-US/docs/Web/HTML/Element
 /en-US/docs/HTML/HTML_Elements/textarea	/en-US/docs/Web/HTML/Element/textarea
@@ -4021,7 +4018,7 @@
 /en-US/docs/HTML/Inline_elements	/en-US/docs/Web/HTML/Inline_elements
 /en-US/docs/HTML/Intro	/en-US/docs/Learn/HTML/Introduction_to_HTML
 /en-US/docs/HTML/Introduction	/en-US/docs/Learn/HTML/Introduction_to_HTML
-/en-US/docs/HTML/Introduction_to_HTML5	/en-US/docs/Web/Guide/HTML/HTML5/Introduction_to_HTML5
+/en-US/docs/HTML/Introduction_to_HTML5	/en-US/docs/Learn/HTML
 /en-US/docs/HTML/Link_types	/en-US/docs/Web/HTML/Link_types
 /en-US/docs/HTML/Manipulating_video_using_canvas	/en-US/docs/Web/API/Canvas_API/Manipulating_video_using_canvas
 /en-US/docs/HTML/Optimizing_Your_Pages_for_Speculative_Parsing	/en-US/docs/Glossary/speculative_parsing
@@ -4033,7 +4030,6 @@
 /en-US/docs/HTML/WebVTT	/en-US/docs/Web/API/WebVTT_API
 /en-US/docs/HTML/aside	/en-US/docs/Web/HTML/Element/aside
 /en-US/docs/HTML/tag	/en-US/docs/Web/HTML/Element
-/en-US/docs/HTML5_support_in_Mozilla	/en-US/docs/Web/Guide/HTML/HTML5
 /en-US/docs/HTML:Block-level_elements	/en-US/docs/Web/HTML/Block-level_elements
 /en-US/docs/HTML:Canvas	/en-US/docs/Web/API/Canvas_API
 /en-US/docs/HTML:Element	/en-US/docs/Web/HTML/Element
@@ -10596,10 +10592,13 @@
 /en-US/docs/Web/Guide/HTML/Forms/Styling_HTML_forms	/en-US/docs/Learn/Forms/Styling_web_forms
 /en-US/docs/Web/Guide/HTML/Forms/The_native_form_widgets	/en-US/docs/Learn/Forms/Basic_native_form_controls
 /en-US/docs/Web/Guide/HTML/Forms_in_HTML	/en-US/docs/Learn/Forms
+/en-US/docs/Web/Guide/HTML/HTML5	/en-US/docs/Glossary/HTML5
+/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation	/en-US/docs/Web/Guide/HTML/Constraint_validation
 /en-US/docs/Web/Guide/HTML/HTML5/Forms_in_HTML5	/en-US/docs/Learn/Forms
+/en-US/docs/Web/Guide/HTML/HTML5/HTML5_Parser	/en-US/docs/Learn/HTML
 /en-US/docs/Web/Guide/HTML/HTML5/HTML5_Tags_List	/en-US/docs/Web/HTML/Element
-/en-US/docs/Web/Guide/HTML/HTML5/HTML5_Thematic_Classification	/en-US/docs/Web/Guide/HTML/HTML5
 /en-US/docs/Web/Guide/HTML/HTML5/HTML5_element_list	/en-US/docs/Web/HTML/Element
+/en-US/docs/Web/Guide/HTML/HTML5/Introduction_to_HTML5	/en-US/docs/Learn/HTML
 /en-US/docs/Web/Guide/HTML/HTML5/Optimizing_Your_Pages_for_Speculative_Parsing	/en-US/docs/Glossary/speculative_parsing
 /en-US/docs/Web/Guide/HTML/Hyperlink	/en-US/docs/Learn/HTML/Introduction_to_HTML/Creating_hyperlinks
 /en-US/docs/Web/Guide/HTML/Inline_event_handler	/en-US/docs/Learn/JavaScript/Building_blocks/Events#Inline_event_handlers_—_don't_use_these
@@ -10669,7 +10668,6 @@
 /en-US/docs/Web/HTML/Elements/textarea	/en-US/docs/Web/HTML/Element/textarea
 /en-US/docs/Web/HTML/Focus_management_in_HTML	/en-US/docs/Web/API/Document/hasFocus
 /en-US/docs/Web/HTML/Forms_in_HTML	/en-US/docs/Learn/Forms
-/en-US/docs/Web/HTML/HTML5	/en-US/docs/Web/Guide/HTML/HTML5
 /en-US/docs/Web/HTML/Inline_elemente	/en-US/docs/Web/HTML/Inline_elements
 /en-US/docs/Web/HTML/Inline_elmements	/en-US/docs/Web/HTML/Inline_elements
 /en-US/docs/Web/HTML/Introduction	/en-US/docs/Learn/HTML/Introduction_to_HTML

diff --git a/files/en-us/_wikihistory.json b/files/en-us/_wikihistory.json
@@ -119559,126 +119559,6 @@
       "gzooler"
     ]
   },
-  "Web/Guide/HTML/HTML5": {
-    "modified": "2020-10-06T06:42:54.768Z",
-    "contributors": [
-      "mahlgren",
-      "AliAyub007",
-      "raohmaru",
-      "MichaelDono",
-      "chrisdavidmills",
-      "ineagu",
-      "svenaan",
-      "Sheppy",
-      "iamsamwilson",
-      "AbdalrhmanIbrahim",
-      "peterholthoffman",
-      "xfq",
-      "bwbw223",
-      "stephaniehobson",
-      "teoli",
-      "BradleyDon",
-      "r-o-b",
-      "jswisher",
-      "firefoxromanov63",
-      "shottiebl8714",
-      "jsx",
-      "Yahpay",
-      "danielinux7",
-      "sxxxsz",
-      "saidkocdemir",
-      "sparky11478",
-      "nasko83",
-      "slippyten",
-      "jensen",
-      "morello",
-      "jscape",
-      "shneeple",
-      "rogerxas",
-      "janokar",
-      "ecal",
-      "Windforce",
-      "amalraj",
-      "abhishek93",
-      "masa86",
-      "mdmanuwerhussain",
-      "EmilyG",
-      "jtthackery",
-      "John.Smith",
-      "TanyaSharma",
-      "sivsivsree",
-      "dbs",
-      "melchiorb",
-      "cforcloud",
-      "indrani7",
-      "ZawNaingOo",
-      "kscarfone",
-      "dac",
-      "Timmi",
-      "imonlhec22",
-      "swapnilraja1212",
-      "SteveFaulkner",
-      "gamesradar",
-      "ginapugalee",
-      "ethertank",
-      "gati_mahesh",
-      "sharwoodjr",
-      "anisur3036",
-      "Sannymei1960",
-      "ACSHN",
-      "openjck",
-      "haboqueferus",
-      "iwo",
-      "soulxshajjad",
-      "pablocubico",
-      "94423450",
-      "[email protected]",
-      "shitface",
-      "haboque",
-      "Deadsparrow",
-      "KyleBarnhart",
-      "harangozo",
-      "msrishikesh",
-      "juliepagano",
-      "Ashprit",
-      "eko.setiawan202",
-      "Mohammed_Hossam",
-      "iSpellbinder",
-      "bdnd",
-      "trevorh",
-      "louisremi",
-      "berkerpeksag",
-      "vigia122",
-      "testaccount",
-      "auco",
-      "tw2113",
-      "vladikoff",
-      "markg",
-      "medimnos",
-      "lmorchard",
-      "Jay",
-      "Ptak82",
-      "Jason23",
-      "thatsmekaustubh",
-      "Carleial",
-      "Dwchiang",
-      "Jesse",
-      "jisung",
-      "coder",
-      "xaky",
-      "leegorous",
-      "makkes",
-      "funkyeah",
-      "Verruckt",
-      "sebmozilla",
-      "Ms2ger",
-      "Izel",
-      "f.sanxz",
-      "Crash",
-      "BenoitL",
-      "Marsf"
-    ]
-  },
   "Web/Guide/HTML/HTML5/Constraint_validation": {
     "modified": "2019-12-31T19:37:36.094Z",
     "contributors": [
@@ -119711,53 +119591,6 @@
       "matt.kantor"
     ]
   },
-  "Web/Guide/HTML/HTML5/HTML5_Parser": {
-    "modified": "2020-12-11T07:10:26.812Z",
-    "contributors": [
-      "bershanskiy",
-      "SphinxKnight",
-      "zlailari",
-      "Jeremie",
-      "kscarfone",
-      "Sheppy",
-      "Hsivonen",
-      "jswisher",
-      "inma_610",
-      "Crash"
-    ]
-  },
-  "Web/Guide/HTML/HTML5/Introduction_to_HTML5": {
-    "modified": "2019-09-25T04:04:29.527Z",
-    "contributors": [
-      "VictorNizeyimana",
-      "hadleyel",
-      "30nov88",
-      "ramsunvtech",
-      "squalrus",
-      "chrisdavidmills",
-      "MiguelTorres",
-      "Chealer",
-      "Jianming",
-      "FabioMagnoni",
-      "Jeremie",
-      "kscarfone",
-      "Sheppy",
-      "zziccardi",
-      "atabas",
-      "enderandpeter",
-      "teoli",
-      "tw2113",
-      "vandadraash",
-      "aagam94",
-      "jswisher",
-      "Potappo",
-      "xaky",
-      "Verruckt",
-      "Ms2ger",
-      "Jscher2000",
-      "stephendonner"
-    ]
-  },
   "Web/Guide/HTML/Using_HTML_sections_and_outlines": {
     "modified": "2020-05-28T17:28:02.293Z",
     "contributors": [

diff --git a/files/en-us/glossary/html5/index.html b/files/en-us/glossary/html5/index.html
@@ -8,10 +8,21 @@
   - HTML5
   - Markup
 ---
-<p>The latest stable release of {{Glossary("HTML")}}, HTML5 takes HTML from a simple markup for structuring a document to a full app development platform. Among other features, HTML5 includes new elements and {{glossary("JavaScript")}} {{glossary("API","APIs")}} to enhance storage, multimedia, and hardware access.</p>
+<p>The term HTML5 is essentially a buzzword that refers to a set of modern web technologies. This includes the {{Glossary("HTML")}} Living Standard, along with {{glossary("JavaScript")}} {{glossary("API","APIs")}} to enhance storage, multimedia, and hardware access.</p>
+
+<p>You may sometimes hear about "new HTML5 elements", or find HTML5 described as a new version of HTML. HTML5 was the successor to previous HTML versions and introduced new elements and capabilities to the language on top of the previous version, HTML 4.01, as well as improving or removing some existing functionality. However, as a Living Standard HTML now has no version. The up-to-date specification can be found at <a href="https://html.spec.whatwg.org/">html.spec.whatwg.org/</a>.</p>
+
+<p>Any modern site should use the <a href="/en-US/docs/MDN/Guidelines/Code_guidelines/HTML#doctype">HTML doctype</a> — this will ensure that you are using the latest verion of HTML.</p>
+
+<div class="notecard note">
+  <h4>Note</h4>
+  <p>Until 2019, the {{glossary("W3C")}} published a competing HTML5 standard with version numbers. In MDN docs and elsewhere on the web therefore, you may find references to other HTML versions, HTML5.1 for example. Since <a href="https://www.w3.org/blog/news/archives/7753">28 May 2019</a>, the WHATWG Living Standard was announced by the W3C as the sole version of HTML.</p>
+</div>
 
 <h2 id="Learn_more">Learn more</h2>
 
 <ul>
- <li><a href="/en-US/docs/Web/Guide/HTML/HTML5">our HTML5 guide</a></li>
+ <li><a href="/en-US/docs/Web/HTML">our HTML documentation</a></li>
+ <li><a href="/en-US/docs/Learn/HTML">HTML beginner's learning guides</a></li>
+ <li><a href="/en-US/docs/Web/API">Web APIs</a></li>
 </ul>
diff --git a/...ml/html5/constraint_validation/index.html → ...ide/html/constraint_validation/index.html b/...ml/html5/constraint_validation/index.html → ...ide/html/constraint_validation/index.html
@@ -1,6 +1,6 @@
 ---
 title: Constraint validation
-slug: Web/Guide/HTML/HTML5/Constraint_validation
+slug: Web/Guide/HTML/Constraint_validation
 tags:
   - CSS
   - Guide