WIP - rough pass on updating LTS page for data breaking lockstep

app/controllers/releases/lts.js

@@ -3,14 +3,26 @@ import Controller from '@ember/controller';
 export default class ReleasesLtsController extends Controller {
   // promotion date should be the day of the release of the following ember minor version
   // you can run `npm info ember-source time` to see a list
-  currentlySupportedLTS = [
-    {
-      version: '5.4',
-      promotionDate: new Date('2023-12-11'),
-    },
-    {
-      version: '4.12',
-      promotionDate: new Date('2023-05-15'),
-    },
-  ];
+  currentlySupportedLtsVerions = {
+    Ember: [
+      {
+        version: '5.4',
+        promotionDate: new Date('2023-12-11'),
+      },
+      {
+        version: '4.12',
+        promotionDate: new Date('2023-05-15'),
+      },
+    ],
+    EmberData: [
+      {
+        version: '5.3',
+        promotionDate: new Date('2023-12-11'),
+      },
+      {
+        version: '4.12',
+        promotionDate: new Date('2023-05-15'),
+      },
+    ],
+  };
 }

app/routes/releases/lts.js

@@ -1,7 +1,11 @@
+import { hash } from 'rsvp';
 import Route from '@ember/routing/route';
 
 export default class ReleasesLtsRoute extends Route {
   model() {
-    return this.store.find('project', 'ember/lts');
+    return hash({
+      ember: this.store.find('project', 'ember/lts'),
+      emberData: this.store.find('project', 'emberData/lts'),
+    });
   }
 }

app/templates/releases/lts.hbs

@@ -11,12 +11,13 @@
 
 <h2>How to Install</h2>
 
-<div class="mb-2">
-  <Releases::HowToInstall
-    @project={{@model}}
-  />
+<div class='mb-2'>
+  <Releases::HowToInstall @project={{@model.ember}} />
 </div>
 
+<div class='mb-2'>
+  <Releases::HowToInstall @project={{@model.emberData}} />
+</div>
 
 <h2>What is an LTS release?</h2>
 
@@ -42,33 +43,40 @@
   Before a version can be called an "LTS" release, it has to spend at least 6 weeks as a stable release, where it is used and tested by thousands of developers.
 </p>
 
-
 <h2>LTS schedule</h2>
 
 <p>
-  Ember currently supports these LTS versions for Ember.js, Ember CLI, and Ember Data.
+  Ember currently supports these LTS versions for Ember.js and Ember Data.
+</p>
+
+<p>
+  <EsNote @mascot="zoey">EmberData made updates to its versioning strategy that mean it may maintain separate LTS versions from Ember.js. You can read more about the updates on the <a href="https://blog.emberjs.com/updates-to-ember-data-versioning-strategy">Ember Blog</a>.</EsNote>
 </p>
 
 <div class="mb-2">
   <table class="lts-table">
     <thead>
       <tr>
-        <th>LTS version</th>
+        <th>Project</th>
+        <th>LTS Version</th>
         <th>Promotion date</th>
         <th>Bugfixes until</th>
         <th>Security patches until</th>
       </tr>
     </thead>
 
     <tbody>
-      {{#each this.currentlySupportedLTS as |release|}}
-        <tr>
-          <td>{{release.version}}</td>
-          <td>{{format-date-time release.promotionDate "MMMM D, YYYY"}}</td>
-          <td>{{format-date-time (add-weeks release.promotionDate 36) "MMMM D, YYYY"}}</td>
-          <td>{{format-date-time (add-weeks release.promotionDate 54) "MMMM D, YYYY"}}</td>
-        </tr>
-      {{/each}}
+      {{#each-in this.currentlySupportedLtsVerions as |project releases|}}
+        {{#each releases as |release|}}
+          <tr>
+            <td>{{project}}</td>
+            <td>{{release.version}}</td>
+            <td>{{format-date-time release.promotionDate "MMMM D, YYYY"}}</td>
+            <td>{{format-date-time (add-weeks release.promotionDate 36) "MMMM D, YYYY"}}</td>
+            <td>{{format-date-time (add-weeks release.promotionDate 54) "MMMM D, YYYY"}}</td>
+          </tr>
+        {{/each}}
+      {{/each-in}}
     </tbody>
   </table>
 </div>
@@ -80,78 +88,93 @@
 <table class="lts-table">
   <thead>
     <tr>
-      <th>LTS version</th>
+      <th>Project</th>
+      <th>Version</th>
       <th>Last minor release</th>
       <th>Last minor release date</th>
     </tr>
   </thead>
   <tbody>
     <tr>
+      <td>Ember & EmberData</td>
       <td>4.8</td>
       <td>4.8.6</td>
       <td>June 2023</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>4.4</td>
       <td>4.4.5</td>
       <td>May 2023</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.28</td>
       <td>3.28.11</td>
       <td>November 2022</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.24</td>
       <td>3.24.6</td>
       <td>November 2021</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.20</td>
       <td>3.20.3</td>
       <td>August 2020</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.16</td>
       <td>3.16.10</td>
       <td>August 2020</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.12</td>
       <td>3.12.4</td>
       <td>May 2020</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.8</td>
       <td>3.8.3</td>
       <td>June 2019</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>3.4</td>
       <td>3.4.8</td>
       <td>January 2019</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>2.18</td>
       <td>2.18.2</td>
       <td>February 2018</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>2.16</td>
       <td>2.16.4</td>
       <td>February 2018</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>2.12</td>
       <td>2.12.2</td>
       <td>April 2017</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>2.8</td>
       <td>2.8.3</td>
       <td>November 2016</td>
     </tr>
     <tr>
+      <td>Ember & EmberData</td>
       <td>2.4</td>
       <td>2.4.5</td>
       <td>April 2016</td>

data/project/emberData/lts.md

@@ -0,0 +1,17 @@
+---
+name: Ember Data
+baseFileName: ember-data
+filter:
+  - /ember-data\./
+repo: emberjs/data
+lastRelease: 5.3.0
+channel: lts
+date: 2023-12-11
+changelogPath: CHANGELOG.md
+debugFileName: .js
+---
+
+# Install Ember Data %s:
+
+<br>
+npm install --save-dev ember-data@~%s