diff --git a/HISTORY.md b/HISTORY.md
new file mode 100644
index 00000000..cff5d7a3
--- /dev/null
+++ b/HISTORY.md
@@ -0,0 +1,19 @@
+# Release History
+
+## 2.0.1 (2019.01.18)
+
+Bugfixes:
+
+- override current teststep variables with former testcase output variables;
+- make compatible with testcase name is empty;
+- skip undefined variable when parsing string content;
+- add request method in report.
+
+## 2.0.0 (2019.01.01)
+
+- Massive Refactor and Simplification
+- Redesign testcase structure
+- Module pipline
+- Start Semantic Versioning
+- Switch to Apache 2.0 license
+- Change logo
diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 8cfb52d4..774f7c60 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'One-stop solution for HTTP(S) testing.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '2.0.0'
+__version__ = '2.0.1'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'Apache-2.0'
diff --git a/httprunner/client.py b/httprunner/client.py
index a31031c2..3de5c47f 100644
--- a/httprunner/client.py
+++ b/httprunner/client.py
@@ -82,6 +82,7 @@ class HttpSession(requests.Session):
 
         # record actual request info
         req_resp_dict["request"]["url"] = resp_obj.request.url
+        req_resp_dict["request"]["method"] = resp_obj.request.method
         req_resp_dict["request"]["headers"] = dict(resp_obj.request.headers)
 
         request_body = resp_obj.request.body
diff --git a/httprunner/parser.py b/httprunner/parser.py
index 27c80ee7..cd033299 100644
--- a/httprunner/parser.py
+++ b/httprunner/parser.py
@@ -503,7 +503,8 @@ def parse_string_variables(content, variables_mapping, functions_mapping):
             parsed_variable_value = parse_data(
                 variable_value,
                 variables_mapping,
-                functions_mapping
+                functions_mapping,
+                raise_if_variable_not_found=False
             )
 
         # TODO: replace variable label from $var to {{var}}
@@ -733,8 +734,12 @@ def _extend_with_testcase(test_dict, testcase_def_dict):
     test_verify = test_dict.pop("verify", True)
     testcase_def_dict["config"].setdefault("verify", test_verify)
 
+    # override name
+    test_name = test_dict.pop("name") or testcase_def_dict["config"].pop("name") or "Undefined name"
+
     # override testcase config name, output, etc.
     testcase_def_dict["config"].update(test_dict)
+    testcase_def_dict["config"]["name"] = test_name
 
     test_dict.clear()
     test_dict.update(testcase_def_dict)
diff --git a/httprunner/runner.py b/httprunner/runner.py
index 3b5ca787..32fc6572 100644
--- a/httprunner/runner.py
+++ b/httprunner/runner.py
@@ -291,6 +291,13 @@ class Runner(object):
         tests = testcase_dict.get("teststeps", [])
 
         for index, test_dict in enumerate(tests):
+
+            # override current teststep variables with former testcase output variables
+            former_output_variables = self.session_context.test_variables_mapping
+            if former_output_variables:
+                test_dict.setdefault("variables", {})
+                test_dict["variables"].update(former_output_variables)
+
             try:
                 test_runner.run_test(test_dict)
             except Exception:
diff --git a/tests/test_parser.py b/tests/test_parser.py
index c039f141..153086fa 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -348,13 +348,13 @@ class TestParser(unittest.TestCase):
     def test_substitute_variables(self):
         content = {
             'request': {
-                'url': '/api/users/$uid',
+                'url': '/api/users/$uid?id=$id',
                 'headers': {'token': '$token'}
             }
         }
-        variables_mapping = {"$uid": 1000}
+        variables_mapping = {"$uid": 1000, "$id": 2}
         substituted_data = parser.substitute_variables(content, variables_mapping)
-        self.assertEqual(substituted_data["request"]["url"], "/api/users/1000")
+        self.assertEqual(substituted_data["request"]["url"], "/api/users/1000?id=2")
         self.assertEqual(substituted_data["request"]["headers"], {'token': '$token'})
 
     def test_parse_parameters_raw_list(self):
@@ -700,7 +700,7 @@ class TestParser(unittest.TestCase):
         self.assertEqual(test_dict["variables"]["num4"], "${sum_two($num0, 5)}")
         self.assertEqual(
             test_dict["request"]["url"],
-            "https://httprunner.org/api1/?num1=$num1&num2=$num2&num3=$num3&num4=$num4"
+            "https://httprunner.org/api1/?num1=3&num2=6&num3=10&num4=${sum_two($num0, 5)}"
         )
 
     def test_parse_tests_base_url_teststep_empty(self):