add lts language

Author: jaredgalanis

content/ember-released-5-12.md

@@ -9,7 +9,7 @@ tags:
   - version-5-x
 ---
 
-Today the Ember project is releasing version 5.12 of Ember.js and Ember CLI. Following [Ember's Major Version Policy](https://rfcs.emberjs.com/id/0830-evolving-embers-major-version-process), version 5.12 will be the final release of the 5.x series.
+Today the Ember project is releasing version 5.12 of Ember.js and Ember CLI. Following [Ember's Major Version Policy](https://rfcs.emberjs.com/id/0830-evolving-embers-major-version-process), version 5.12 will be the final release of the 5.x series. This release of Ember.js is an LTS (Long Term Support) candidate. LTS candidates prioritize stability over the addition of new features, and have an extended support schedule.
 
 This release kicks off the 6.0 beta cycle for all sub-projects. We encourage our community (especially addon authors) to help test these beta builds and report any bugs before they are published as a final release in six weeks' time. The [ember-try](https://github.com/ember-cli/ember-try) addon is a great way to continuously test your projects against the latest Ember releases.