diff --git a/packages/ember-template-compiler/lib/plugins/deprecate-render.ts b/packages/ember-template-compiler/lib/plugins/deprecate-render.ts
index 16313eae7e3..405bd52e8de 100644
--- a/packages/ember-template-compiler/lib/plugins/deprecate-render.ts
+++ b/packages/ember-template-compiler/lib/plugins/deprecate-render.ts
@@ -3,7 +3,6 @@ import { RENDER_HELPER } from '@ember/deprecated-features';
 import { AST, ASTPlugin, ASTPluginEnvironment } from '@glimmer/syntax';
 import calculateLocationDisplay from '../system/calculate-location-display';
 
-// Remove after 3.4 once _ENABLE_RENDER_SUPPORT flag is no longer needed.
 export default function deprecateRender(env: ASTPluginEnvironment): ASTPlugin | undefined {
   if (RENDER_HELPER) {
     let { moduleName } = env.meta;
diff --git a/packages/ember-template-compiler/lib/plugins/deprecate-send-action.ts b/packages/ember-template-compiler/lib/plugins/deprecate-send-action.ts
new file mode 100644
index 00000000000..df4fda721f9
--- /dev/null
+++ b/packages/ember-template-compiler/lib/plugins/deprecate-send-action.ts
@@ -0,0 +1,45 @@
+import { deprecate } from '@ember/debug';
+import { AST, ASTPlugin, ASTPluginEnvironment } from '@glimmer/syntax';
+import calculateLocationDisplay from '../system/calculate-location-display';
+
+const EVENTS = [
+  'insert-newline',
+  'enter',
+  'escape-press',
+  'focus-in',
+  'focus-out',
+  'key-press',
+  'key-up',
+  'key-down',
+];
+
+export default function deprecateRender(env: ASTPluginEnvironment): ASTPlugin | undefined {
+  let { moduleName } = env.meta;
+
+  let deprecationMessage = (node: AST.MustacheStatement, eventName: string, actionName: string) => {
+    let sourceInformation = calculateLocationDisplay(moduleName, node.loc);
+    return `Please refactor \`{{input ${eventName}="${actionName}"}}\` to \`{{input ${eventName}=(action "${actionName}")}}\. ${sourceInformation}`;
+  };
+
+  return {
+    name: 'deprecate-send-action',
+
+    visitor: {
+      MustacheStatement(node: AST.MustacheStatement) {
+        if (node.path.original !== 'input') {
+          return;
+        }
+
+        node.hash.pairs.forEach(pair => {
+          if (EVENTS.indexOf(pair.key) > -1 && pair.value.type === 'StringLiteral') {
+            deprecate(deprecationMessage(node, pair.key, pair.value.original), false, {
+              id: 'ember-template-compiler.send-action',
+              until: '4.0.0',
+              url: 'SOME_URL',
+            });
+          }
+        });
+      },
+    },
+  };
+}
diff --git a/packages/ember-template-compiler/lib/plugins/index.ts b/packages/ember-template-compiler/lib/plugins/index.ts
index 3e0a59d63f7..3cb8dd09c02 100644
--- a/packages/ember-template-compiler/lib/plugins/index.ts
+++ b/packages/ember-template-compiler/lib/plugins/index.ts
@@ -4,6 +4,7 @@ import AssertReservedNamedArguments from './assert-reserved-named-arguments';
 import AssertSplattributeExpressions from './assert-splattribute-expression';
 import DeprecateRender from './deprecate-render';
 import DeprecateRenderModel from './deprecate-render-model';
+import DeprecateSendAction from './deprecate-send-action';
 import TransformActionSyntax from './transform-action-syntax';
 import TransformAngleBracketComponents from './transform-angle-bracket-components';
 import TransformAttrsIntoArgs from './transform-attrs-into-args';
@@ -40,6 +41,7 @@ const transforms: Array<APluginFunc> = [
   TransformInElement,
   AssertIfHelperWithoutArguments,
   AssertSplattributeExpressions,
+  DeprecateSendAction
 ];
 
 if (RENDER_HELPER) {
diff --git a/packages/ember-template-compiler/tests/plugins/deprecate-send-action-test.js b/packages/ember-template-compiler/tests/plugins/deprecate-send-action-test.js
new file mode 100644
index 00000000000..a5925fa41e0
--- /dev/null
+++ b/packages/ember-template-compiler/tests/plugins/deprecate-send-action-test.js
@@ -0,0 +1,29 @@
+import { compile } from '../../index';
+import { moduleFor, AbstractTestCase } from 'internal-test-helpers';
+
+const EVENTS = [
+  'insert-newline',
+  'enter',
+  'escape-press',
+  'focus-in',
+  'focus-out',
+  'key-press',
+  'key-up',
+  'key-down',
+];
+
+class DeprecateSendActionTest extends AbstractTestCase {}
+
+EVENTS.forEach(function(e) {
+  DeprecateSendActionTest.prototype[
+    `@test Using \`{{input ${e}="actionName"}}\` provides a deprecation`
+  ] = function() {
+    let expectedMessage = `Please refactor \`{{input ${e}="foo-bar"}}\` to \`{{input ${e}=(action "foo-bar")}}\. ('baz/foo-bar' @ L1:C0) `;
+
+    expectDeprecation(() => {
+      compile(`{{input ${e}="foo-bar"}}`, { moduleName: 'baz/foo-bar' });
+    }, expectedMessage);
+  };
+});
+
+moduleFor('ember-template-compiler: deprecate-send-action', DeprecateSendActionTest);
diff --git a/packages/ember-views/lib/mixins/text_support.js b/packages/ember-views/lib/mixins/text_support.js
index 99a5188ea59..188ed83b593 100644
--- a/packages/ember-views/lib/mixins/text_support.js
+++ b/packages/ember-views/lib/mixins/text_support.js
@@ -89,7 +89,7 @@ const KEY_EVENTS = {
   +--------------------+----------------+
   | new line inserted  | insert-newline |
   |                    |                |
-  | enter key pressed  | insert-newline |
+  | enter key pressed  | enter          |
   |                    |                |
   | cancel key pressed | escape-press   |
   |                    |                |