diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 25e70185..1e4c891c 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -65,7 +65,6 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     j$.Clock = jRequire.Clock();
     j$.DelayedFunctionScheduler = jRequire.DelayedFunctionScheduler(j$);
     j$.Env = jRequire.Env(j$);
-    j$.deprecatingThisProxy = jRequire.deprecatingThisProxy(j$);
     j$.StackTrace = jRequire.StackTrace(j$);
     j$.ExceptionFormatter = jRequire.ExceptionFormatter(j$);
     j$.ExpectationFilterChain = jRequire.ExpectationFilterChain();
@@ -1957,7 +1956,7 @@ getJasmineRequireObj().Env = function(j$) {
 
       var declarationError = null;
       try {
-        specDefinitions.call(j$.deprecatingThisProxy(suite, self));
+        specDefinitions();
       } catch (e) {
         declarationError = e;
       }
@@ -3368,39 +3367,6 @@ getJasmineRequireObj().DelayedFunctionScheduler = function(j$) {
   return DelayedFunctionScheduler;
 };
 
-/* eslint-disable compat/compat */
-// TODO: Remove this in the next major release.
-getJasmineRequireObj().deprecatingThisProxy = function(j$) {
-  var msg = "Access to 'this' in describe functions is deprecated.";
-
-  try {
-    new Proxy({}, {});
-  } catch (e) {
-    // Environment does not support Poxy.
-    return function(suite) {
-      return suite;
-    };
-  }
-
-  function DeprecatingThisProxyHandler(env) {
-    this._env = env;
-  }
-
-  DeprecatingThisProxyHandler.prototype.get = function(target, prop, receiver) {
-    this._env.deprecated(msg);
-    return target[prop];
-  };
-
-  DeprecatingThisProxyHandler.prototype.set = function(target, prop, value) {
-    this._env.deprecated(msg);
-    return (target[prop] = value);
-  };
-
-  return function(suite, env) {
-    return new Proxy(suite, new DeprecatingThisProxyHandler(env));
-  };
-};
-
 getJasmineRequireObj().errors = function() {
   function ExpectationFailed() {}
 
diff --git a/spec/core/EnvSpec.js b/spec/core/EnvSpec.js
index 12000f34..23c0d373 100644
--- a/spec/core/EnvSpec.js
+++ b/spec/core/EnvSpec.js
@@ -441,38 +441,7 @@ describe('Env', function() {
     });
   });
 
-  it("deprecates access to 'this' in describes", function() {
-    jasmine.getEnv().requireProxy();
-    var msg = "Access to 'this' in describe functions is deprecated.",
-      ran = false;
-    spyOn(env, 'deprecated');
-
-    env.describe('a suite', function() {
-      expect(this.description).toEqual('a suite');
-      expect(env.deprecated).toHaveBeenCalledWith(msg);
-      env.deprecated.calls.reset();
-
-      this.foo = 1;
-      expect(env.deprecated).toHaveBeenCalledWith(msg);
-      expect(this.foo).toEqual(1);
-      env.deprecated.calls.reset();
-
-      expect(this.getFullName()).toEqual('a suite');
-      expect(env.deprecated).toHaveBeenCalledWith(msg);
-      env.deprecated.calls.reset();
-
-      env.it('has a spec');
-      ran = true;
-    });
-
-    expect(ran).toBeTrue();
-  });
-
-  // TODO: Remove this in the next major version. Suites were never meant to be
-  // exposed via describe 'this' in >= 2.0, and user code should not rely on it.
-  // This spec is just here to make sure we don't break user code that *does*
-  // rely on it in older browsers (without Proxy) while deprecating it.
-  it("sets 'this' to the Suite in describes", function() {
+  it("does not expose the suite as 'this'", function() {
     var suiteThis;
     spyOn(env, 'deprecated');
 
@@ -481,6 +450,6 @@ describe('Env', function() {
       env.it('has a spec');
     });
 
-    expect(suiteThis).toBeInstanceOf(jasmineUnderTest.Suite);
+    expect(suiteThis).not.toBeInstanceOf(jasmineUnderTest.Suite);
   });
 });
diff --git a/spec/helpers/checkForProxy.js b/spec/helpers/checkForProxy.js
deleted file mode 100644
index b4062d0b..00000000
--- a/spec/helpers/checkForProxy.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/* eslint-disable compat/compat */
-(function(env) {
-  function hasProxyConstructor() {
-    try {
-      new Proxy({}, {});
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  env.requireProxy = function() {
-    if (!hasProxyConstructor()) {
-      env.pending('Environment does not support Proxy');
-    }
-  };
-})(jasmine.getEnv());
diff --git a/spec/support/jasmine-browser.js b/spec/support/jasmine-browser.js
index 1fc16d01..9062bf8a 100644
--- a/spec/support/jasmine-browser.js
+++ b/spec/support/jasmine-browser.js
@@ -21,7 +21,6 @@ module.exports = {
     'helpers/generator.js',
     'helpers/BrowserFlags.js',
     'helpers/checkForMap.js',
-    'helpers/checkForProxy.js',
     'helpers/checkForSet.js',
     'helpers/checkForSymbol.js',
     'helpers/checkForUrl.js',
diff --git a/spec/support/jasmine.json b/spec/support/jasmine.json
index d6369bf2..1a0ca3b2 100644
--- a/spec/support/jasmine.json
+++ b/spec/support/jasmine.json
@@ -8,7 +8,6 @@
     "helpers/asyncAwait.js",
     "helpers/generator.js",
     "helpers/checkForMap.js",
-    "helpers/checkForProxy.js",
     "helpers/checkForSet.js",
     "helpers/checkForSymbol.js",
     "helpers/checkForUrl.js",
diff --git a/src/core/Env.js b/src/core/Env.js
index 813c4843..39c8cf81 100644
--- a/src/core/Env.js
+++ b/src/core/Env.js
@@ -987,7 +987,7 @@ getJasmineRequireObj().Env = function(j$) {
 
       var declarationError = null;
       try {
-        specDefinitions.call(j$.deprecatingThisProxy(suite, self));
+        specDefinitions();
       } catch (e) {
         declarationError = e;
       }
diff --git a/src/core/deprecatingThisProxy.js b/src/core/deprecatingThisProxy.js
deleted file mode 100644
index 6f924b18..00000000
--- a/src/core/deprecatingThisProxy.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/* eslint-disable compat/compat */
-// TODO: Remove this in the next major release.
-getJasmineRequireObj().deprecatingThisProxy = function(j$) {
-  var msg = "Access to 'this' in describe functions is deprecated.";
-
-  try {
-    new Proxy({}, {});
-  } catch (e) {
-    // Environment does not support Poxy.
-    return function(suite) {
-      return suite;
-    };
-  }
-
-  function DeprecatingThisProxyHandler(env) {
-    this._env = env;
-  }
-
-  DeprecatingThisProxyHandler.prototype.get = function(target, prop, receiver) {
-    this._env.deprecated(msg);
-    return target[prop];
-  };
-
-  DeprecatingThisProxyHandler.prototype.set = function(target, prop, value) {
-    this._env.deprecated(msg);
-    return (target[prop] = value);
-  };
-
-  return function(suite, env) {
-    return new Proxy(suite, new DeprecatingThisProxyHandler(env));
-  };
-};
diff --git a/src/core/requireCore.js b/src/core/requireCore.js
index 13cc6cc5..aac94b87 100644
--- a/src/core/requireCore.js
+++ b/src/core/requireCore.js
@@ -43,7 +43,6 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     j$.Clock = jRequire.Clock();
     j$.DelayedFunctionScheduler = jRequire.DelayedFunctionScheduler(j$);
     j$.Env = jRequire.Env(j$);
-    j$.deprecatingThisProxy = jRequire.deprecatingThisProxy(j$);
     j$.StackTrace = jRequire.StackTrace(j$);
     j$.ExceptionFormatter = jRequire.ExceptionFormatter(j$);
     j$.ExpectationFilterChain = jRequire.ExpectationFilterChain();