diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 52304872..4d4bdb52 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -1948,22 +1948,10 @@ getJasmineRequireObj().Clock = function() {
     };
 
     self.setTimeout = function(fn, delay, params) {
-      if (legacyIE()) {
-        if (arguments.length > 2) {
-          throw new Error('IE < 9 cannot support extra params to setTimeout without a polyfill');
-        }
-        return timer.setTimeout(fn, delay);
-      }
       return Function.prototype.apply.apply(timer.setTimeout, [global, arguments]);
     };
 
     self.setInterval = function(fn, delay, params) {
-      if (legacyIE()) {
-        if (arguments.length > 2) {
-          throw new Error('IE < 9 cannot support extra params to setInterval without a polyfill');
-        }
-        return timer.setInterval(fn, delay);
-      }
       return Function.prototype.apply.apply(timer.setInterval, [global, arguments]);
     };
 
@@ -1998,11 +1986,6 @@ getJasmineRequireObj().Clock = function() {
         global.clearInterval === realTimingFunctions.clearInterval;
     }
 
-    function legacyIE() {
-      //if these methods are polyfilled, apply will be present
-      return !(realTimingFunctions.setTimeout || realTimingFunctions.setInterval).apply;
-    }
-
     function replace(dest, source) {
       for (var prop in source) {
         dest[prop] = source[prop];
@@ -2667,28 +2650,7 @@ getJasmineRequireObj().matchersUtil = function(j$) {
     var bIsDomNode = j$.isDomNode(b);
     if (aIsDomNode && bIsDomNode) {
       // At first try to use DOM3 method isEqualNode
-      if (a.isEqualNode) {
-        result = a.isEqualNode(b);
-        if (!result) {
-          diffBuilder.record(a, b);
-        }
-        return result;
-      }
-      // IE8 doesn't support isEqualNode, try to use outerHTML && innerText
-      var aIsElement = a instanceof Element;
-      var bIsElement = b instanceof Element;
-      if (aIsElement && bIsElement) {
-        result = a.outerHTML == b.outerHTML;
-        if (!result) {
-          diffBuilder.record(a, b);
-        }
-        return result;
-      }
-      if (aIsElement || bIsElement) {
-        diffBuilder.record(a, b);
-        return false;
-      }
-      result = a.innerText == b.innerText && a.textContent == b.textContent;
+      result = a.isEqualNode(b);
       if (!result) {
         diffBuilder.record(a, b);
       }
@@ -4840,12 +4802,7 @@ getJasmineRequireObj().SpyRegistry = function(j$) {
         }
       }
 
-      var descriptor;
-      try {
-        descriptor = Object.getOwnPropertyDescriptor(obj, methodName);
-      } catch(e) {
-        // IE 8 doesn't support `definePropery` on non-DOM nodes
-      }
+      var descriptor = Object.getOwnPropertyDescriptor(obj, methodName);
 
       if (descriptor && !(descriptor.writable || descriptor.set)) {
         throw new Error(getErrorMsg(methodName + ' is not declared writable or has no setter'));
@@ -4887,12 +4844,7 @@ getJasmineRequireObj().SpyRegistry = function(j$) {
         throw new Error('No property name supplied');
       }
 
-      var descriptor;
-      try {
-        descriptor = j$.util.getPropertyDescriptor(obj, propertyName);
-      } catch(e) {
-        // IE 8 doesn't support `definePropery` on non-DOM nodes
-      }
+      var descriptor = j$.util.getPropertyDescriptor(obj, propertyName);
 
       if (!descriptor) {
         throw new Error(propertyName + ' property does not exist');
diff --git a/spec/core/ClockSpec.js b/spec/core/ClockSpec.js
index 6b3ed1d0..e585149a 100644
--- a/spec/core/ClockSpec.js
+++ b/spec/core/ClockSpec.js
@@ -389,37 +389,6 @@ describe("Clock", function() {
       clock.tick(50);
     }).toThrow();
   });
-
-  it("on IE < 9, fails if extra args are passed to fake clock", function() {
-    //fail, because this would break in IE9.
-    var fakeSetTimeout = jasmine.createSpy('setTimeout'),
-      fakeSetInterval = jasmine.createSpy('setInterval'),
-      delayedFunctionScheduler = jasmine.createSpyObj('delayedFunctionScheduler', ['scheduleFunction']),
-      fn = jasmine.createSpy('fn'),
-      fakeGlobal = {
-        setTimeout: fakeSetTimeout,
-        setInterval: fakeSetInterval
-      },
-      mockDate = { install: function() {}, tick: function() {}, uninstall: function() {} },
-      clock = new jasmineUnderTest.Clock(fakeGlobal, function () { return delayedFunctionScheduler; }, mockDate);
-
-    fakeSetTimeout.apply = null;
-    fakeSetInterval.apply = null;
-
-    clock.install();
-
-    clock.setTimeout(fn, 0);
-    expect(delayedFunctionScheduler.scheduleFunction).toHaveBeenCalledWith(fn, 0, []);
-    expect(function() {
-      clock.setTimeout(fn, 0, 'extra');
-    }).toThrow();
-
-    clock.setInterval(fn, 0);
-    expect(delayedFunctionScheduler.scheduleFunction).toHaveBeenCalledWith(fn, 0, [], true);
-    expect(function() {
-      clock.setInterval(fn, 0, 'extra');
-    }).toThrow();
-  });
 });
 
 describe("Clock (acceptance)", function() {
diff --git a/spec/core/ExceptionFormatterSpec.js b/spec/core/ExceptionFormatterSpec.js
index ef384dd7..6796ff62 100644
--- a/spec/core/ExceptionFormatterSpec.js
+++ b/spec/core/ExceptionFormatterSpec.js
@@ -47,8 +47,8 @@ describe("ExceptionFormatter", function() {
   });
 
   describe("#stack", function() {
-    it("formats stack traces from Webkit, Firefox, node.js or IE10+", function() {
-      if (jasmine.getEnv().ieVersion < 10 || jasmine.getEnv().safariVersion < 6) { return; }
+    it("formats stack traces", function() {
+      if (jasmine.getEnv().safariVersion < 6) { return; }
 
       var error;
       try { throw new Error("an error") } catch(e) { error = e; }
diff --git a/spec/core/PrettyPrintSpec.js b/spec/core/PrettyPrintSpec.js
index d15aae10..931c2dba 100644
--- a/spec/core/PrettyPrintSpec.js
+++ b/spec/core/PrettyPrintSpec.js
@@ -250,11 +250,7 @@ describe("jasmineUnderTest.pp", function () {
       toString: function () { return Object.prototype.toString.call(this); }
     };
 
-    if (jasmine.getEnv().ieVersion < 9) {
-      expect(jasmineUnderTest.pp(objFromOtherContext)).toEqual("Object({ foo: 'bar' })");
-    } else {
-      expect(jasmineUnderTest.pp(objFromOtherContext)).toEqual("Object({ foo: 'bar', toString: Function })");
-    }
+    expect(jasmineUnderTest.pp(objFromOtherContext)).toEqual("Object({ foo: 'bar', toString: Function })");
   });
 
   it("should stringify objects have have a toString that isn't a function", function() {
@@ -262,11 +258,7 @@ describe("jasmineUnderTest.pp", function () {
       toString: "foo"
     };
 
-    if (jasmine.getEnv().ieVersion < 9) {
-      expect(jasmineUnderTest.pp(obj)).toEqual("Object({  })");
-    } else {
-      expect(jasmineUnderTest.pp(obj)).toEqual("Object({ toString: 'foo' })");
-    }
+    expect(jasmineUnderTest.pp(obj)).toEqual("Object({ toString: 'foo' })");
   });
 
   it("should stringify objects from anonymous constructors with custom toString", function () {
@@ -279,8 +271,6 @@ describe("jasmineUnderTest.pp", function () {
   });
 
   it("should handle objects with null prototype", function() {
-    if (jasmine.getEnv().ieVersion < 9) { return; }
-
     var obj = Object.create(null);
     obj.foo = 'bar';
 
diff --git a/spec/core/SpyRegistrySpec.js b/spec/core/SpyRegistrySpec.js
index 4f09c932..b25dbaaa 100644
--- a/spec/core/SpyRegistrySpec.js
+++ b/spec/core/SpyRegistrySpec.js
@@ -54,9 +54,6 @@ describe("SpyRegistry", function() {
     });
 
     it("checks if it can be spied upon", function() {
-      // IE 8 doesn't support `definePropery` on non-DOM nodes
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var scope = {};
 
       function myFunc() {
@@ -94,9 +91,6 @@ describe("SpyRegistry", function() {
   });
 
   describe("#spyOnProperty", function() {
-    // IE 8 doesn't support `definePropery` on non-DOM nodes
-    if (jasmine.getEnv().ieVersion < 9) { return; }
-
     it("checks for the existence of the object", function() {
       var spyRegistry = new jasmineUnderTest.SpyRegistry();
       expect(function() {
@@ -246,9 +240,6 @@ describe("SpyRegistry", function() {
     });
 
     it("does not add a property that the spied-upon object didn't originally have", function() {
-      // IE 8 doesn't support `Object.create`
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var spies = [],
         spyRegistry = new jasmineUnderTest.SpyRegistry({currentSpies: function() { return spies; }}),
         originalFunction = function() {},
@@ -266,9 +257,6 @@ describe("SpyRegistry", function() {
     });
 
     it("restores the original function when it\'s inherited and cannot be deleted", function() {
-      // IE 8 doesn't support `Object.create` or `Object.defineProperty`
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var spies = [],
         spyRegistry = new jasmineUnderTest.SpyRegistry({currentSpies: function() { return spies; }}),
         originalFunction = function() {},
@@ -291,9 +279,6 @@ describe("SpyRegistry", function() {
 
     describe('spying on properties', function() {
       it("restores the original properties on the spied-upon objects", function() {
-        // IE 8 doesn't support `definePropery` on non-DOM nodes
-        if (jasmine.getEnv().ieVersion < 9) { return; }
-
         var spies = [],
           spyRegistry = new jasmineUnderTest.SpyRegistry({currentSpies: function() { return spies; }}),
           originalReturn = 1,
@@ -311,9 +296,6 @@ describe("SpyRegistry", function() {
       });
 
       it("does not add a property that the spied-upon object didn't originally have", function() {
-        // IE 8 doesn't support `Object.create`
-        if (jasmine.getEnv().ieVersion < 9) { return; }
-
         var spies = [],
           spyRegistry = new jasmineUnderTest.SpyRegistry({currentSpies: function() { return spies; }}),
           originalReturn = 1,
diff --git a/spec/core/UtilSpec.js b/spec/core/UtilSpec.js
index faaca2c2..84f08b8f 100644
--- a/spec/core/UtilSpec.js
+++ b/spec/core/UtilSpec.js
@@ -43,9 +43,6 @@ describe("jasmineUnderTest.util", function() {
   });
 
   describe("getPropertyDescriptor", function() {
-    // IE 8 doesn't support `definePropery` on non-DOM nodes
-    if (jasmine.getEnv().ieVersion < 9) { return; }
-
     it("get property descriptor from object", function() {
       var obj = {prop: 1},
         actual = jasmineUnderTest.util.getPropertyDescriptor(obj, 'prop'),
diff --git a/spec/core/asymmetric_equality/ObjectContainingSpec.js b/spec/core/asymmetric_equality/ObjectContainingSpec.js
index fd2f5e66..e2741a9d 100644
--- a/spec/core/asymmetric_equality/ObjectContainingSpec.js
+++ b/spec/core/asymmetric_equality/ObjectContainingSpec.js
@@ -57,9 +57,6 @@ describe("ObjectContaining", function() {
   });
 
   it("matches defined properties", function(){
-    // IE 8 doesn't support `definePropery` on non-DOM nodes
-    if (jasmine.getEnv().ieVersion < 9) { return; }
-
     var containing = new jasmineUnderTest.ObjectContaining({ foo: "fooVal" });
 
     var definedPropertyObject = {};
diff --git a/spec/core/integration/EnvSpec.js b/spec/core/integration/EnvSpec.js
index b5cfc29f..dee3d9be 100644
--- a/spec/core/integration/EnvSpec.js
+++ b/spec/core/integration/EnvSpec.js
@@ -1164,12 +1164,9 @@ describe("Env integration", function() {
 
       env.describe('suite', function() {
         env.afterAll(function() {
-          if (jasmine.getEnv().ieVersion < 9) {
-          } else {
-            realSetTimeout(function() {
-              jasmine.clock().tick(10);
-            }, 100);
-          }
+          realSetTimeout(function() {
+            jasmine.clock().tick(10);
+          }, 100);
         });
         env.describe('beforeAll', function() {
           env.beforeAll(function(innerDone) {
diff --git a/spec/core/matchers/matchersUtilSpec.js b/spec/core/matchers/matchersUtilSpec.js
index 98795db5..de2dae30 100644
--- a/spec/core/matchers/matchersUtilSpec.js
+++ b/spec/core/matchers/matchersUtilSpec.js
@@ -156,8 +156,6 @@ describe("matchersUtil", function() {
     });
 
     it("passes for equivalent frozen objects (GitHub issue #266)", function() {
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var a = { foo: 1 },
         b = {foo: 1 };
 
@@ -191,10 +189,6 @@ describe("matchersUtil", function() {
         if (isNotRunningInBrowser()) {
           return;
         }
-        // iframe.contentWindow.eval isn't supported in ie8
-        if (jasmine.getEnv().ieVersion < 9) {
-          return;
-        }
         var iframe = document.createElement('iframe');
         document.body.appendChild(iframe);
         iframe.contentWindow.eval('window.testObject = {}');
@@ -356,8 +350,6 @@ describe("matchersUtil", function() {
     });
 
     it("passes for null prototype objects with same properties", function () {
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var objA = Object.create(null),
           objB = Object.create(null);
 
@@ -368,8 +360,6 @@ describe("matchersUtil", function() {
     });
 
     it("fails for null prototype objects with different properties", function () {
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var objA = Object.create(null),
           objB = Object.create(null);
 
@@ -449,9 +439,6 @@ describe("matchersUtil", function() {
     });
 
     describe("when running in an environment with array polyfills", function() {
-      // IE 8 doesn't support `definePropery` on non-DOM nodes
-      if (jasmine.getEnv().ieVersion < 9) { return; }
-
       var findIndexDescriptor = Object.getOwnPropertyDescriptor(Array.prototype, 'findIndex');
       if (!findIndexDescriptor) {
         return;
diff --git a/spec/core/matchers/toEqualSpec.js b/spec/core/matchers/toEqualSpec.js
index 2c4916bb..c3115644 100644
--- a/spec/core/matchers/toEqualSpec.js
+++ b/spec/core/matchers/toEqualSpec.js
@@ -299,22 +299,7 @@ describe("toEqual", function() {
     expect(compareEquals(actual, expected).message).toEqual(message);
   });
 
-  function constructorIsNotEnumerable() {
-    // in IE8, the constructor property is not enumerable, even if it is an
-    // own property of the object.
-    // Objects that differ only by an own `constructor` property are thus
-    // considered equal in IE8.
-    for (var key in {constructor: 1}) {
-      return false;
-    }
-    return true;
-  }
-
   it("reports mismatches between objects with their own constructor property", function () {
-    if (constructorIsNotEnumerable()) {
-      return;
-    }
-
     function Foo() {}
     function Bar() {}
 
@@ -326,10 +311,6 @@ describe("toEqual", function() {
   });
 
   it("reports mismatches between an object with a real constructor and one with its own constructor property", function () {
-    if (constructorIsNotEnumerable()) {
-      return;
-    }
-
     function Foo() {}
     function Bar() {}
 
diff --git a/spec/core/matchers/toThrowErrorSpec.js b/spec/core/matchers/toThrowErrorSpec.js
index c7750e80..eaa9c137 100644
--- a/spec/core/matchers/toThrowErrorSpec.js
+++ b/spec/core/matchers/toThrowErrorSpec.js
@@ -79,7 +79,7 @@ describe("toThrowError", function() {
     });
 
     it("passes if thrown is an instanceof Error regardless of global that contains its constructor", function() {
-      if (isNotRunningInBrowser() || jasmine.getEnv().phantomVersion < 2 || jasmine.getEnv().ieVersion < 10) {
+      if (isNotRunningInBrowser() || jasmine.getEnv().phantomVersion < 2) {
         return;
       }
 
@@ -92,7 +92,7 @@ describe("toThrowError", function() {
         iframeDocument.body.appendChild(iframeDocument.createElement("script"))
         .textContent = "function method() { throw new Error('foo'); }";
       } else {
-        // older IE
+        // IE 10 and older
         iframeDocument.write("<html><head><script>function method() { throw new Error('foo'); }</script></head></html>");
       }
 
diff --git a/spec/helpers/BrowserFlags.js b/spec/helpers/BrowserFlags.js
index 77d1a1e9..128d133e 100644
--- a/spec/helpers/BrowserFlags.js
+++ b/spec/helpers/BrowserFlags.js
@@ -8,10 +8,6 @@
     return match ? parseFloat(match[1]) : void 0;
   }
 
-  env.ieVersion = browserVersion(function(userAgent) {
-    return /MSIE ([0-9]{1,}[\.0-9]{0,})/.exec(userAgent);
-  });
-
   env.safariVersion = browserVersion(function(userAgent) {
     return /Safari/.exec(userAgent) && /Version\/([0-9]{0,})/.exec(userAgent);
   });
diff --git a/src/core/Clock.js b/src/core/Clock.js
index 52fafcfe..a0602c6a 100644
--- a/src/core/Clock.js
+++ b/src/core/Clock.js
@@ -83,22 +83,10 @@ getJasmineRequireObj().Clock = function() {
     };
 
     self.setTimeout = function(fn, delay, params) {
-      if (legacyIE()) {
-        if (arguments.length > 2) {
-          throw new Error('IE < 9 cannot support extra params to setTimeout without a polyfill');
-        }
-        return timer.setTimeout(fn, delay);
-      }
       return Function.prototype.apply.apply(timer.setTimeout, [global, arguments]);
     };
 
     self.setInterval = function(fn, delay, params) {
-      if (legacyIE()) {
-        if (arguments.length > 2) {
-          throw new Error('IE < 9 cannot support extra params to setInterval without a polyfill');
-        }
-        return timer.setInterval(fn, delay);
-      }
       return Function.prototype.apply.apply(timer.setInterval, [global, arguments]);
     };
 
@@ -133,11 +121,6 @@ getJasmineRequireObj().Clock = function() {
         global.clearInterval === realTimingFunctions.clearInterval;
     }
 
-    function legacyIE() {
-      //if these methods are polyfilled, apply will be present
-      return !(realTimingFunctions.setTimeout || realTimingFunctions.setInterval).apply;
-    }
-
     function replace(dest, source) {
       for (var prop in source) {
         dest[prop] = source[prop];
diff --git a/src/core/SpyRegistry.js b/src/core/SpyRegistry.js
index d8d4cf7f..139bfa3d 100644
--- a/src/core/SpyRegistry.js
+++ b/src/core/SpyRegistry.js
@@ -32,12 +32,7 @@ getJasmineRequireObj().SpyRegistry = function(j$) {
         }
       }
 
-      var descriptor;
-      try {
-        descriptor = Object.getOwnPropertyDescriptor(obj, methodName);
-      } catch(e) {
-        // IE 8 doesn't support `definePropery` on non-DOM nodes
-      }
+      var descriptor = Object.getOwnPropertyDescriptor(obj, methodName);
 
       if (descriptor && !(descriptor.writable || descriptor.set)) {
         throw new Error(getErrorMsg(methodName + ' is not declared writable or has no setter'));
@@ -79,12 +74,7 @@ getJasmineRequireObj().SpyRegistry = function(j$) {
         throw new Error('No property name supplied');
       }
 
-      var descriptor;
-      try {
-        descriptor = j$.util.getPropertyDescriptor(obj, propertyName);
-      } catch(e) {
-        // IE 8 doesn't support `definePropery` on non-DOM nodes
-      }
+      var descriptor = j$.util.getPropertyDescriptor(obj, propertyName);
 
       if (!descriptor) {
         throw new Error(propertyName + ' property does not exist');
diff --git a/src/core/matchers/matchersUtil.js b/src/core/matchers/matchersUtil.js
index 71fc0047..c05f2a83 100644
--- a/src/core/matchers/matchersUtil.js
+++ b/src/core/matchers/matchersUtil.js
@@ -182,28 +182,7 @@ getJasmineRequireObj().matchersUtil = function(j$) {
     var bIsDomNode = j$.isDomNode(b);
     if (aIsDomNode && bIsDomNode) {
       // At first try to use DOM3 method isEqualNode
-      if (a.isEqualNode) {
-        result = a.isEqualNode(b);
-        if (!result) {
-          diffBuilder.record(a, b);
-        }
-        return result;
-      }
-      // IE8 doesn't support isEqualNode, try to use outerHTML && innerText
-      var aIsElement = a instanceof Element;
-      var bIsElement = b instanceof Element;
-      if (aIsElement && bIsElement) {
-        result = a.outerHTML == b.outerHTML;
-        if (!result) {
-          diffBuilder.record(a, b);
-        }
-        return result;
-      }
-      if (aIsElement || bIsElement) {
-        diffBuilder.record(a, b);
-        return false;
-      }
-      result = a.innerText == b.innerText && a.textContent == b.textContent;
+      result = a.isEqualNode(b);
       if (!result) {
         diffBuilder.record(a, b);
       }