diff --git a/CHANGELOG.md b/CHANGELOG.md
index 966047e..059bc6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 3.1.0
+
+* Removed Xcode 8 betas 1-5 workaround. Beta 6 resolved the bug; please upgrade to Xcode 8 beta 6 before upgrading to 3.1.0 of this library.
+
 # 3.0.7
 
 * Resolved bug in which a failed unit test on Xcode 8 betas would cause arc unit to hang.
diff --git a/engine/XcodeUnitTestEngine.php b/engine/XcodeUnitTestEngine.php
index 5a7ce9a..63fd2b3 100644
--- a/engine/XcodeUnitTestEngine.php
+++ b/engine/XcodeUnitTestEngine.php
@@ -102,48 +102,6 @@ protected function loadEnvironment() {
     }
   }
 
-  private function xcodeMajorVersion() {
-    $future = new ExecFuture('%C -version', $this->xcodebuildBinary);
-
-    list($errcode, $stdout, $stderr) = $future->resolve();
-
-    if (!$errcode && preg_match("/Xcode (.+)/", $stdout, $matches)) {
-      return intval($matches[1]);
-    }
-
-    return null;
-  }
-
-  public function execFutureEndOnLine($future, $stdoutline, $stderrline) {
-    $wait  = $future->getDefaultWait();
-    $hasSeenLine = false;
-    do {
-      if ($future->isReady()) {
-        break;
-      }
-
-      $read = $future->getReadSockets();
-      $write = $future->getWriteSockets();
-
-      if ($read || $write) {
-        Future::waitForSockets($read, $write, $wait);
-      }
-
-      $pipes = $future->read();
-      if (!$hasSeenLine && (strpos($pipes[0], $stdoutline) !== false
-                            || strpos($pipes[1], $stderrline) !== false)) {
-        $hasSeenLine = true;
-
-      } else if ($hasSeenLine && empty($pipes[0])) {
-        $results = $future->resolveKill();
-        $results[0] = 0; # Overwrite the 'kill' error code.
-        return $results;
-      }
-    } while (true);
-
-    return $future->getResult();
-  }
-
   public function run() {
     $this->loadEnvironment();
 
@@ -165,29 +123,11 @@ public function run() {
       $future->resolvex();
     }
 
-    $xcodeMajorVersion = $this->xcodeMajorVersion();
-    if ($xcodeMajorVersion && $xcodeMajorVersion >= 8) {
-      // Build and run unit tests
-      $future = new ExecFuture('%C build-for-testing %C',
-        $this->xcodebuildBinary, implode(' ', $xcodeargs));
-      list($builderror, $xcbuild_stdout, $xcbuild_stderr) = $future->resolve();
-      if (!$builderror) {
-        $future = new ExecFuture('%C test-without-building %C',
-          $this->xcodebuildBinary, implode(' ', $xcodeargs));
-
-        list($builderror, $xcbuild_stdout, $xcbuild_stderr) =
-          $this->execFutureEndOnLine($future,
-            "** TEST EXECUTE SUCCEEDED **",
-            "** TEST EXECUTE FAILED **"
-          );
-      }
+    // Build and run unit tests
+    $future = new ExecFuture('%C %C test',
+      $this->xcodebuildBinary, implode(' ', $xcodeargs));
 
-    } else {
-      // Build and run unit tests
-      $future = new ExecFuture('%C %C test',
-        $this->xcodebuildBinary, implode(' ', $xcodeargs));
-      list($builderror, $xcbuild_stdout, $xcbuild_stderr) = $future->resolve();
-    }
+    list($builderror, $xcbuild_stdout, $xcbuild_stderr) = $future->resolve();
 
     // Error-code 65 is thrown for build/unit test failures.
     if ($builderror !== 0 && $builderror !== 65) {
@@ -230,7 +170,7 @@ public function run() {
         }
       }
     }
-
+    
     // TODO(featherless): If we publicized the parseCoverageResults method on
     // XcodeTestResultParser we could parseTestResults, then call parseCoverageResults,
     // and the logic here would map the coverage results to the test results. This