diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index d88c3948..00000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "pages"]
-	path = pages
-	url = https://github.com/pivotal/jasmine.git
diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 02037164..708b3b70 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -123,6 +123,7 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     j$.SpyRegistry = jRequire.SpyRegistry(j$);
     j$.SpyStrategy = jRequire.SpyStrategy(j$);
     j$.StringMatching = jRequire.StringMatching(j$);
+    j$.StringContaining = jRequire.StringContaining(j$);
     j$.UserContext = jRequire.UserContext(j$);
     j$.Suite = jRequire.Suite(j$);
     j$.Timer = jRequire.Timer();
@@ -424,7 +425,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is an instance of the specified class/constructor.
    * @name jasmine.any
    * @since 1.3.0
@@ -436,7 +437,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is not `null` and not `undefined`.
    * @name jasmine.anything
    * @since 2.2.0
@@ -447,7 +448,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is `true` or anything truthy.
    * @name jasmine.truthy
    * @since 3.1.0
@@ -458,7 +459,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is  `null`, `undefined`, `0`, `false` or anything falsey.
    * @name jasmine.falsy
    * @since 3.1.0
@@ -469,7 +470,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is empty.
    * @name jasmine.empty
    * @since 3.1.0
@@ -480,7 +481,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is not empty.
    * @name jasmine.notEmpty
    * @since 3.1.0
@@ -491,7 +492,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared contains at least the keys and values.
    * @name jasmine.objectContaining
    * @since 1.3.0
@@ -503,7 +504,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value is a `String` that matches the `RegExp` or `String`.
    * @name jasmine.stringMatching
    * @since 2.2.0
@@ -515,7 +516,19 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * that will succeed if the actual value is a `String` that contains the specified `String`.
+   * @name jasmine.stringContaining
+   * @since 3.10.0
+   * @function
+   * @param {String} expected
+   */
+  j$.stringContaining = function(expected) {
+    return new j$.StringContaining(expected);
+  };
+
+  /**
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value is an `Array` that contains at least the elements in the sample.
    * @name jasmine.arrayContaining
    * @since 2.2.0
@@ -527,7 +540,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value is an `Array` that contains all of the elements in the sample in any order.
    * @name jasmine.arrayWithExactContents
    * @since 2.8.0
@@ -539,7 +552,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if every key/value pair in the sample passes the deep equality comparison
    * with at least one key/value pair in the actual value being compared
    * @name jasmine.mapContaining
@@ -552,7 +565,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if every item in the sample passes the deep equality comparison
    * with at least one item in the actual value being compared
    * @name jasmine.setContaining
@@ -734,6 +747,7 @@ getJasmineRequireObj().Spec = function(j$) {
   /**
    * @interface Spec
    * @see Configuration#specFilter
+   * @since 2.0.0
    */
   function Spec(attrs) {
     this.expectationFactory = attrs.expectationFactory;
@@ -744,6 +758,7 @@ getJasmineRequireObj().Spec = function(j$) {
      * @name Spec#id
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.id = attrs.id;
     /**
@@ -751,6 +766,7 @@ getJasmineRequireObj().Spec = function(j$) {
      * @name Spec#description
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.description = attrs.description || '';
     this.queueableFn = attrs.queueableFn;
@@ -798,7 +814,8 @@ getJasmineRequireObj().Spec = function(j$) {
      * @property {String} status - Once the spec has completed, this string represents the pass/fail status of this spec.
      * @property {number} duration - The time in ms used by the spec execution, including any before/afterEach.
      * @property {Object} properties - User-supplied properties, if any, that were set using {@link Env#setSpecProperty}
-     */
+     * @since 2.0.0
+x     */
     this.result = {
       id: this.id,
       description: this.description,
@@ -966,6 +983,7 @@ getJasmineRequireObj().Spec = function(j$) {
    * @name Spec#getFullName
    * @function
    * @returns {string}
+   * @since 2.0.0
    */
   Spec.prototype.getFullName = function() {
     return this.getSpecName(this);
@@ -1869,6 +1887,7 @@ getJasmineRequireObj().Env = function(j$) {
      * @function
      * @name Env#topSuite
      * @return {Suite} the root suite
+     * @since 2.0.0
      */
     this.topSuite = function() {
       return j$.deprecatingSuiteProxy(topSuite, null, this);
@@ -2061,6 +2080,7 @@ getJasmineRequireObj().Env = function(j$) {
          * @typedef JasmineStartedInfo
          * @property {Int} totalSpecsDefined - The total number of specs defined in this suite.
          * @property {Order} order - Information about the ordering (random or not) of this execution of the suite.
+         * @since 2.0.0
          */
         reporter.jasmineStarted(
           {
@@ -2099,6 +2119,7 @@ getJasmineRequireObj().Env = function(j$) {
                * @property {Order} order - Information about the ordering (random or not) of this execution of the suite.
                * @property {Expectation[]} failedExpectations - List of expectations that failed in an {@link afterAll} at the global level.
                * @property {Expectation[]} deprecationWarnings - List of deprecation warnings that occurred at the global level.
+               * @since 2.4.0
                */
               reporter.jasmineDone(
                 {
@@ -3090,6 +3111,31 @@ getJasmineRequireObj().SetContaining = function(j$) {
   return SetContaining;
 };
 
+getJasmineRequireObj().StringContaining = function(j$) {
+  function StringContaining(expected) {
+    if (!j$.isString_(expected)) {
+      throw new Error('Expected is not a String');
+    }
+
+    this.expected = expected;
+  }
+
+  StringContaining.prototype.asymmetricMatch = function(other) {
+    if (!j$.isString_(other)) {
+      // Arrays, etc. don't match no matter what their indexOf returns.
+      return false;
+    }
+
+    return other.indexOf(this.expected) !== -1;
+  };
+
+  StringContaining.prototype.jasmineToString = function() {
+    return '<jasmine.stringContaining("' + this.expected + '")>';
+  };
+
+  return StringContaining;
+};
+
 getJasmineRequireObj().StringMatching = function(j$) {
   function StringMatching(expected) {
     if (!j$.isString_(expected) && !j$.isA_('RegExp', expected)) {
@@ -3301,6 +3347,7 @@ getJasmineRequireObj().CallTracker = function(j$) {
     /**
      * Get the "this" object that was passed to a specific invocation of this spy.
      * @name Spy#calls#thisFor
+     * @since 3.8.0
      * @function
      * @param {Integer} index The 0-based invocation index.
      * @return {Object?}
@@ -3462,6 +3509,7 @@ getJasmineRequireObj().Clock = function() {
 
   /**
    * @class Clock
+   * @since 1.3.0
    * @classdesc Jasmine's mock clock is used when testing time dependent code.<br>
    * _Note:_ Do not construct this directly. You can get the current clock with
    * {@link jasmine.clock}.
@@ -4398,6 +4446,7 @@ getJasmineRequireObj().Expectation = function(j$) {
    * Otherwise evaluate the matcher.
    * @member
    * @name async-matchers#already
+   * @since 3.8.0
    * @type {async-matchers}
    * @example
    * await expectAsync(myPromise).already.toBeResolved();
@@ -6076,9 +6125,33 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
 /**
  * @interface AsymmetricEqualityTester
  * @classdesc An asymmetric equality tester is an object that can match multiple
- * objects. Examples include jasmine.any() and jasmine.stringMatching().
- * User-defined asymmetric equality testers can also be defined and used in
- * expectations.
+ * objects. Examples include jasmine.any() and jasmine.stringMatching(). Jasmine
+ * includes a number of built-in asymmetric equality testers, such as
+ * {@link jasmine.objectContaining}. User-defined asymmetric equality testers are
+ * also supported.
+ *
+ * Asymmetric equality testers work with any matcher, including user-defined
+ * custom matchers, that uses {@link MatchersUtil#equals} or
+ * {@link MatchersUtil#contains}.
+ *
+ * @example
+ * function numberDivisibleBy(divisor) {
+ *   return {
+ *     asymmetricMatch: function(n) {
+ *       return typeof n === 'number' && n % divisor === 0;
+ *     },
+ *     jasmineToString: function() {
+ *       return `<a number divisible by ${divisor}>`;
+ *     }
+ *   };
+ * }
+ *
+ * var actual = {
+ *   n: 2,
+ *   otherFields: "don't care"
+ * };
+ *
+ * expect(actual).toEqual(jasmine.objectContaining({n: numberDivisibleBy(2)}));
  * @see custom_asymmetric_equality_testers
  * @since 2.0.0
  */
@@ -9906,6 +9979,7 @@ getJasmineRequireObj().Suite = function(j$) {
   /**
    * @interface Suite
    * @see Env#topSuite
+   * @since 2.0.0
    */
   function Suite(attrs) {
     this.env = attrs.env;
@@ -9914,6 +9988,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * @name Suite#id
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.id = attrs.id;
     /**
@@ -9928,6 +10003,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * @name Suite#description
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.description = attrs.description;
     this.expectationFactory = attrs.expectationFactory;
@@ -9946,6 +10022,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * The suite's children.
      * @name Suite#children
      * @type {Array.<(Spec|Suite)>}
+     * @since 2.0.0
      */
     this.children = [];
 
@@ -9959,6 +10036,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * @property {String} status - Once the suite has completed, this string represents the pass/fail status of this suite.
      * @property {number} duration - The time in ms for Suite execution, including any before/afterAll, before/afterEach.
      * @property {Object} properties - User-supplied properties, if any, that were set using {@link Env#setSuiteProperty}
+     * @since 2.0.0
      */
     this.result = {
       id: this.id,
@@ -9989,6 +10067,7 @@ getJasmineRequireObj().Suite = function(j$) {
    * @name Suite#getFullName
    * @function
    * @returns {string}
+   * @since 2.0.0
    */
   Suite.prototype.getFullName = function() {
     var fullName = [];
diff --git a/spec/core/asymmetric_equality/StringContainingSpec.js b/spec/core/asymmetric_equality/StringContainingSpec.js
new file mode 100644
index 00000000..aef1f48e
--- /dev/null
+++ b/spec/core/asymmetric_equality/StringContainingSpec.js
@@ -0,0 +1,27 @@
+describe('StringContaining', function() {
+  it('searches for a provided substring when the expected is a String', function() {
+    var matcher = new jasmineUnderTest.StringContaining('foo');
+
+    expect(matcher.asymmetricMatch('barfoobaz')).toBe(true);
+    expect(matcher.asymmetricMatch('barbaz')).toBe(false);
+  });
+
+  it('raises an Error when the expected is not a String', function() {
+    expect(function() {
+      new jasmineUnderTest.StringContaining(/foo/);
+    }).toThrowError(/not a String/);
+  });
+
+  it('fails when the actual is not a String', function() {
+    var matcher = new jasmineUnderTest.StringContaining('x');
+    expect(matcher.asymmetricMatch(['x'])).toBe(false);
+  });
+
+  it("jasmineToString's itself", function() {
+    var matching = new jasmineUnderTest.StringContaining('foo');
+
+    expect(matching.jasmineToString()).toEqual(
+      '<jasmine.stringContaining("foo")>'
+    );
+  });
+});
diff --git a/spec/core/integration/AsymmetricEqualityTestersSpec.js b/spec/core/integration/AsymmetricEqualityTestersSpec.js
index 3d12f15d..7ab1c77f 100644
--- a/spec/core/integration/AsymmetricEqualityTestersSpec.js
+++ b/spec/core/integration/AsymmetricEqualityTestersSpec.js
@@ -231,6 +231,16 @@ describe('Asymmetric equality testers (Integration)', function() {
     });
   });
 
+  describe('stringContaining', function() {
+    verifyPasses(function(env) {
+      env.expect('foo').toEqual(jasmineUnderTest.stringContaining('o'));
+    });
+
+    verifyFails(function(env) {
+      env.expect('bar').toEqual(jasmineUnderTest.stringContaining('o'));
+    });
+  });
+
   describe('truthy', function() {
     verifyPasses(function(env) {
       env.expect(true).toEqual(jasmineUnderTest.truthy());
diff --git a/src/core/CallTracker.js b/src/core/CallTracker.js
index 128790fe..fa9ebeaa 100644
--- a/src/core/CallTracker.js
+++ b/src/core/CallTracker.js
@@ -52,6 +52,7 @@ getJasmineRequireObj().CallTracker = function(j$) {
     /**
      * Get the "this" object that was passed to a specific invocation of this spy.
      * @name Spy#calls#thisFor
+     * @since 3.8.0
      * @function
      * @param {Integer} index The 0-based invocation index.
      * @return {Object?}
diff --git a/src/core/Clock.js b/src/core/Clock.js
index 30c1ca7a..1bb593e1 100644
--- a/src/core/Clock.js
+++ b/src/core/Clock.js
@@ -7,6 +7,7 @@ getJasmineRequireObj().Clock = function() {
 
   /**
    * @class Clock
+   * @since 1.3.0
    * @classdesc Jasmine's mock clock is used when testing time dependent code.<br>
    * _Note:_ Do not construct this directly. You can get the current clock with
    * {@link jasmine.clock}.
diff --git a/src/core/Env.js b/src/core/Env.js
index 6a28a34e..89e8232b 100644
--- a/src/core/Env.js
+++ b/src/core/Env.js
@@ -814,6 +814,7 @@ getJasmineRequireObj().Env = function(j$) {
      * @function
      * @name Env#topSuite
      * @return {Suite} the root suite
+     * @since 2.0.0
      */
     this.topSuite = function() {
       return j$.deprecatingSuiteProxy(topSuite, null, this);
@@ -1006,6 +1007,7 @@ getJasmineRequireObj().Env = function(j$) {
          * @typedef JasmineStartedInfo
          * @property {Int} totalSpecsDefined - The total number of specs defined in this suite.
          * @property {Order} order - Information about the ordering (random or not) of this execution of the suite.
+         * @since 2.0.0
          */
         reporter.jasmineStarted(
           {
@@ -1044,6 +1046,7 @@ getJasmineRequireObj().Env = function(j$) {
                * @property {Order} order - Information about the ordering (random or not) of this execution of the suite.
                * @property {Expectation[]} failedExpectations - List of expectations that failed in an {@link afterAll} at the global level.
                * @property {Expectation[]} deprecationWarnings - List of deprecation warnings that occurred at the global level.
+               * @since 2.4.0
                */
               reporter.jasmineDone(
                 {
diff --git a/src/core/Expectation.js b/src/core/Expectation.js
index 0309ec34..5545e1b0 100644
--- a/src/core/Expectation.js
+++ b/src/core/Expectation.js
@@ -126,6 +126,7 @@ getJasmineRequireObj().Expectation = function(j$) {
    * Otherwise evaluate the matcher.
    * @member
    * @name async-matchers#already
+   * @since 3.8.0
    * @type {async-matchers}
    * @example
    * await expectAsync(myPromise).already.toBeResolved();
diff --git a/src/core/Spec.js b/src/core/Spec.js
index 60946906..6e997550 100644
--- a/src/core/Spec.js
+++ b/src/core/Spec.js
@@ -2,6 +2,7 @@ getJasmineRequireObj().Spec = function(j$) {
   /**
    * @interface Spec
    * @see Configuration#specFilter
+   * @since 2.0.0
    */
   function Spec(attrs) {
     this.expectationFactory = attrs.expectationFactory;
@@ -12,6 +13,7 @@ getJasmineRequireObj().Spec = function(j$) {
      * @name Spec#id
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.id = attrs.id;
     /**
@@ -19,6 +21,7 @@ getJasmineRequireObj().Spec = function(j$) {
      * @name Spec#description
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.description = attrs.description || '';
     this.queueableFn = attrs.queueableFn;
@@ -66,7 +69,8 @@ getJasmineRequireObj().Spec = function(j$) {
      * @property {String} status - Once the spec has completed, this string represents the pass/fail status of this spec.
      * @property {number} duration - The time in ms used by the spec execution, including any before/afterEach.
      * @property {Object} properties - User-supplied properties, if any, that were set using {@link Env#setSpecProperty}
-     */
+     * @since 2.0.0
+x     */
     this.result = {
       id: this.id,
       description: this.description,
@@ -234,6 +238,7 @@ getJasmineRequireObj().Spec = function(j$) {
    * @name Spec#getFullName
    * @function
    * @returns {string}
+   * @since 2.0.0
    */
   Spec.prototype.getFullName = function() {
     return this.getSpecName(this);
diff --git a/src/core/Suite.js b/src/core/Suite.js
index ce873ad3..abf48b6a 100644
--- a/src/core/Suite.js
+++ b/src/core/Suite.js
@@ -2,6 +2,7 @@ getJasmineRequireObj().Suite = function(j$) {
   /**
    * @interface Suite
    * @see Env#topSuite
+   * @since 2.0.0
    */
   function Suite(attrs) {
     this.env = attrs.env;
@@ -10,6 +11,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * @name Suite#id
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.id = attrs.id;
     /**
@@ -24,6 +26,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * @name Suite#description
      * @readonly
      * @type {string}
+     * @since 2.0.0
      */
     this.description = attrs.description;
     this.expectationFactory = attrs.expectationFactory;
@@ -42,6 +45,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * The suite's children.
      * @name Suite#children
      * @type {Array.<(Spec|Suite)>}
+     * @since 2.0.0
      */
     this.children = [];
 
@@ -55,6 +59,7 @@ getJasmineRequireObj().Suite = function(j$) {
      * @property {String} status - Once the suite has completed, this string represents the pass/fail status of this suite.
      * @property {number} duration - The time in ms for Suite execution, including any before/afterAll, before/afterEach.
      * @property {Object} properties - User-supplied properties, if any, that were set using {@link Env#setSuiteProperty}
+     * @since 2.0.0
      */
     this.result = {
       id: this.id,
@@ -85,6 +90,7 @@ getJasmineRequireObj().Suite = function(j$) {
    * @name Suite#getFullName
    * @function
    * @returns {string}
+   * @since 2.0.0
    */
   Suite.prototype.getFullName = function() {
     var fullName = [];
diff --git a/src/core/asymmetric_equality/StringContaining.js b/src/core/asymmetric_equality/StringContaining.js
new file mode 100644
index 00000000..16f0c4e6
--- /dev/null
+++ b/src/core/asymmetric_equality/StringContaining.js
@@ -0,0 +1,24 @@
+getJasmineRequireObj().StringContaining = function(j$) {
+  function StringContaining(expected) {
+    if (!j$.isString_(expected)) {
+      throw new Error('Expected is not a String');
+    }
+
+    this.expected = expected;
+  }
+
+  StringContaining.prototype.asymmetricMatch = function(other) {
+    if (!j$.isString_(other)) {
+      // Arrays, etc. don't match no matter what their indexOf returns.
+      return false;
+    }
+
+    return other.indexOf(this.expected) !== -1;
+  };
+
+  StringContaining.prototype.jasmineToString = function() {
+    return '<jasmine.stringContaining("' + this.expected + '")>';
+  };
+
+  return StringContaining;
+};
diff --git a/src/core/base.js b/src/core/base.js
index 89cd2b6e..ec5a6383 100644
--- a/src/core/base.js
+++ b/src/core/base.js
@@ -229,7 +229,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is an instance of the specified class/constructor.
    * @name jasmine.any
    * @since 1.3.0
@@ -241,7 +241,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is not `null` and not `undefined`.
    * @name jasmine.anything
    * @since 2.2.0
@@ -252,7 +252,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is `true` or anything truthy.
    * @name jasmine.truthy
    * @since 3.1.0
@@ -263,7 +263,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is  `null`, `undefined`, `0`, `false` or anything falsey.
    * @name jasmine.falsy
    * @since 3.1.0
@@ -274,7 +274,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is empty.
    * @name jasmine.empty
    * @since 3.1.0
@@ -285,7 +285,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared is not empty.
    * @name jasmine.notEmpty
    * @since 3.1.0
@@ -296,7 +296,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value being compared contains at least the keys and values.
    * @name jasmine.objectContaining
    * @since 1.3.0
@@ -308,7 +308,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value is a `String` that matches the `RegExp` or `String`.
    * @name jasmine.stringMatching
    * @since 2.2.0
@@ -320,7 +320,19 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * that will succeed if the actual value is a `String` that contains the specified `String`.
+   * @name jasmine.stringContaining
+   * @since 3.10.0
+   * @function
+   * @param {String} expected
+   */
+  j$.stringContaining = function(expected) {
+    return new j$.StringContaining(expected);
+  };
+
+  /**
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value is an `Array` that contains at least the elements in the sample.
    * @name jasmine.arrayContaining
    * @since 2.2.0
@@ -332,7 +344,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if the actual value is an `Array` that contains all of the elements in the sample in any order.
    * @name jasmine.arrayWithExactContents
    * @since 2.8.0
@@ -344,7 +356,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if every key/value pair in the sample passes the deep equality comparison
    * with at least one key/value pair in the actual value being compared
    * @name jasmine.mapContaining
@@ -357,7 +369,7 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
   };
 
   /**
-   * Get a matcher, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
+   * Get an {@link AsymmetricEqualityTester}, usable in any {@link matchers|matcher} that uses Jasmine's equality (e.g. {@link matchers#toEqual|toEqual}, {@link matchers#toContain|toContain}, or {@link matchers#toHaveBeenCalledWith|toHaveBeenCalledWith}),
    * that will succeed if every item in the sample passes the deep equality comparison
    * with at least one item in the actual value being compared
    * @name jasmine.setContaining
diff --git a/src/core/matchers/matchersUtil.js b/src/core/matchers/matchersUtil.js
index 16c2d32e..bba9797c 100644
--- a/src/core/matchers/matchersUtil.js
+++ b/src/core/matchers/matchersUtil.js
@@ -683,9 +683,33 @@ getJasmineRequireObj().MatchersUtil = function(j$) {
 /**
  * @interface AsymmetricEqualityTester
  * @classdesc An asymmetric equality tester is an object that can match multiple
- * objects. Examples include jasmine.any() and jasmine.stringMatching().
- * User-defined asymmetric equality testers can also be defined and used in
- * expectations.
+ * objects. Examples include jasmine.any() and jasmine.stringMatching(). Jasmine
+ * includes a number of built-in asymmetric equality testers, such as
+ * {@link jasmine.objectContaining}. User-defined asymmetric equality testers are
+ * also supported.
+ *
+ * Asymmetric equality testers work with any matcher, including user-defined
+ * custom matchers, that uses {@link MatchersUtil#equals} or
+ * {@link MatchersUtil#contains}.
+ *
+ * @example
+ * function numberDivisibleBy(divisor) {
+ *   return {
+ *     asymmetricMatch: function(n) {
+ *       return typeof n === 'number' && n % divisor === 0;
+ *     },
+ *     jasmineToString: function() {
+ *       return `<a number divisible by ${divisor}>`;
+ *     }
+ *   };
+ * }
+ *
+ * var actual = {
+ *   n: 2,
+ *   otherFields: "don't care"
+ * };
+ *
+ * expect(actual).toEqual(jasmine.objectContaining({n: numberDivisibleBy(2)}));
  * @see custom_asymmetric_equality_testers
  * @since 2.0.0
  */
diff --git a/src/core/requireCore.js b/src/core/requireCore.js
index 6372fd68..1a2ee522 100644
--- a/src/core/requireCore.js
+++ b/src/core/requireCore.js
@@ -101,6 +101,7 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     j$.SpyRegistry = jRequire.SpyRegistry(j$);
     j$.SpyStrategy = jRequire.SpyStrategy(j$);
     j$.StringMatching = jRequire.StringMatching(j$);
+    j$.StringContaining = jRequire.StringContaining(j$);
     j$.UserContext = jRequire.UserContext(j$);
     j$.Suite = jRequire.Suite(j$);
     j$.Timer = jRequire.Timer();