diff --git a/app/assets/javascripts/discourse-common/addon/resolver.js b/app/assets/javascripts/discourse-common/addon/resolver.js
index 22d13c56ca..e07793bfb9 100644
--- a/app/assets/javascripts/discourse-common/addon/resolver.js
+++ b/app/assets/javascripts/discourse-common/addon/resolver.js
@@ -65,7 +65,7 @@ export function buildResolver(baseName) {
       if (fullName === "app-events:main") {
         deprecated(
           "`app-events:main` has been replaced with `service:app-events`",
-          { since: "2.4.0" }
+          { since: "2.4.0", dropFrom: "2.9.0.beta1" }
         );
         return "service:app-events";
       }
diff --git a/app/assets/javascripts/discourse/app/components/mobile-nav.js b/app/assets/javascripts/discourse/app/components/mobile-nav.js
index 8648020a20..bdbb2cc85a 100644
--- a/app/assets/javascripts/discourse/app/components/mobile-nav.js
+++ b/app/assets/javascripts/discourse/app/components/mobile-nav.js
@@ -17,6 +17,7 @@ export default Component.extend({
     if (this.currentPath) {
       deprecated("{{mobile-nav}} no longer requires the currentPath property", {
         since: "2.7.0.beta4",
+        dropFrom: "2.9.0.beta1",
       });
     }
   },
diff --git a/app/assets/javascripts/discourse/app/lib/formatter.js b/app/assets/javascripts/discourse/app/lib/formatter.js
index 90ddf88e1d..3a57516b18 100644
--- a/app/assets/javascripts/discourse/app/lib/formatter.js
+++ b/app/assets/javascripts/discourse/app/lib/formatter.js
@@ -55,6 +55,7 @@ export function updateRelativeAge(elems) {
     elems = elems.toArray();
     deprecated("updateRelativeAge now expects a DOM NodeList", {
       since: "2.8.0.beta7",
+      dropFrom: "2.9.0.beta1",
     });
   }
 
diff --git a/app/assets/javascripts/discourse/app/lib/link-hashtags.js b/app/assets/javascripts/discourse/app/lib/link-hashtags.js
index 7d1fa26320..da3391d5d4 100644
--- a/app/assets/javascripts/discourse/app/lib/link-hashtags.js
+++ b/app/assets/javascripts/discourse/app/lib/link-hashtags.js
@@ -14,6 +14,7 @@ export function linkSeenHashtags(elem) {
 
     deprecated("linkSeenHashtags now expects a DOM node as first parameter", {
       since: "2.8.0.beta7",
+      dropFrom: "2.9.0.beta1",
     });
   }
 
diff --git a/app/assets/javascripts/discourse/app/lib/link-mentions.js b/app/assets/javascripts/discourse/app/lib/link-mentions.js
index 8abfc47e5b..229b2c71f7 100644
--- a/app/assets/javascripts/discourse/app/lib/link-mentions.js
+++ b/app/assets/javascripts/discourse/app/lib/link-mentions.js
@@ -73,6 +73,7 @@ export function linkSeenMentions(elem, siteSettings) {
 
     deprecated("linkSeenMentions now expects a DOM node as first parameter", {
       since: "2.8.0.beta7",
+      dropFrom: "2.9.0.beta1",
     });
   }
 
diff --git a/app/assets/javascripts/discourse/app/models/store.js b/app/assets/javascripts/discourse/app/models/store.js
index ca01224fb8..42523e3e76 100644
--- a/app/assets/javascripts/discourse/app/models/store.js
+++ b/app/assets/javascripts/discourse/app/models/store.js
@@ -5,5 +5,6 @@ deprecated(
   `"discourse/models/store" import is deprecated, use "discourse/services/store" instead`,
   {
     since: "2.8.0.beta8",
+    dropFrom: "2.9.0.beta1",
   }
 );
diff --git a/app/assets/javascripts/discourse/app/pre-initializers/inject-discourse-objects.js b/app/assets/javascripts/discourse/app/pre-initializers/inject-discourse-objects.js
index a9702e2ce4..6f82a8ca76 100644
--- a/app/assets/javascripts/discourse/app/pre-initializers/inject-discourse-objects.js
+++ b/app/assets/javascripts/discourse/app/pre-initializers/inject-discourse-objects.js
@@ -37,6 +37,7 @@ export default {
       create() {
         deprecated(`"store:main" is deprecated, use "service:store" instead`, {
           since: "2.8.0.beta8",
+          dropFrom: "2.9.0.beta1",
         });
 
         return container.lookup("service:store");
@@ -85,6 +86,7 @@ export default {
           `"search-service:main" is deprecated, use "service:search" instead`,
           {
             since: "2.8.0.beta8",
+            dropFrom: "2.9.0.beta1",
           }
         );
 
diff --git a/app/assets/javascripts/discourse/tests/helpers/qunit-helpers.js b/app/assets/javascripts/discourse/tests/helpers/qunit-helpers.js
index 58410713f6..8591ec77fc 100644
--- a/app/assets/javascripts/discourse/tests/helpers/qunit-helpers.js
+++ b/app/assets/javascripts/discourse/tests/helpers/qunit-helpers.js
@@ -204,7 +204,7 @@ export function acceptance(name, optionsOrCallback) {
   } else if (typeof optionsOrCallback === "object") {
     deprecated(
       `${name}: The second parameter to \`acceptance\` should be a function that encloses your tests.`,
-      { since: "2.6.0" }
+      { since: "2.6.0", dropFrom: "2.9.0.beta1" }
     );
     options = optionsOrCallback;
   }
diff --git a/app/assets/javascripts/select-kit/addon/components/select-kit.js b/app/assets/javascripts/select-kit/addon/components/select-kit.js
index 8aca155af8..db9a181310 100644
--- a/app/assets/javascripts/select-kit/addon/components/select-kit.js
+++ b/app/assets/javascripts/select-kit/addon/components/select-kit.js
@@ -1042,7 +1042,7 @@ export default Component.extend(
         discourseSetup &&
         discourseSetup.getAttribute("data-environment") === "development"
       ) {
-        deprecated(text, { since: "v2.4.0" });
+        deprecated(text, { since: "v2.4.0", dropFrom: "2.9.0.beta1" });
       }
     },