diff --git a/.moban.cd/changelog.yml b/.moban.cd/changelog.yml
index 392eed67..aca0eb33 100644
--- a/.moban.cd/changelog.yml
+++ b/.moban.cd/changelog.yml
@@ -5,6 +5,10 @@ releases:
   - action: Added
     details:
     - "global variables to store the target and template file names in the jinja2 engine"
+    - "moban-handlebars is tested to work well with this version and above"
+  - action: Updated
+    details:
+    - Template engine interface has been clarified and documented
   date: 14-11-2018
   version: 0.3.4
 - changes:
diff --git a/.moban.cd/moban.yml b/.moban.cd/moban.yml
index 061a144a..e2e1d7f3 100644
--- a/.moban.cd/moban.yml
+++ b/.moban.cd/moban.yml
@@ -17,8 +17,7 @@ keywords:
 dependencies:
   - pyyaml>=3.11
   - jinja2>=2.7.1
-  - lml==0.0.4
+  - lml>=0.0.7
   - crayons
-  - pybars3
 description: Yet another jinja2 cli command for static text generation
 scm_host: github.com
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f189ae90..d6977c04 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -9,6 +9,12 @@ Added
 
 #. global variables to store the target and template file names in the jinja2
    engine
+#. moban-handlebars is tested to work well with this version and above
+
+Updated
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+#. Template engine interface has been clarified and documented
 
 0.3.3 - 05-11-2018
 --------------------------------------------------------------------------------
diff --git a/docs/README.rst b/docs/README.rst
index 37ccfaf4..d3cafab8 100644
--- a/docs/README.rst
+++ b/docs/README.rst
@@ -13,6 +13,7 @@ This section covers the use cases for moban. Please check them out individually.
 #. `Pass a folder full of templates`_
 #. `Use pypi package as a moban dependency`_
 #. `Use git repository as a moban dependency`_
+#. `Use handlebars template with moban`_
 
 .. _Jinja2 command line: level-1-jinja2-cli
 .. _Template inheritance: level-2-template-inheritance
@@ -24,3 +25,4 @@ This section covers the use cases for moban. Please check them out individually.
 .. _Pass a folder full of templates: level-8-pass-a-folder-full-of-templates
 .. _Use pypi package as a moban dependency: level-9-moban-dependency-as-pypi-package
 .. _Use git repository as a moban dependency: level-10-moban-dependency-as-git-repo
+.. _Use handlebars template with moban: level-11-use-handlebars
diff --git a/docs/conf.py b/docs/conf.py
index d4a30bcb..b4ffa141 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -42,12 +42,7 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.doctest',
-    'sphinx.ext.intersphinx',
-    'sphinx.ext.viewcode',
-]
+extensions = [    'sphinx.ext.autodoc',    'sphinx.ext.doctest',    'sphinx.ext.intersphinx',    'sphinx.ext.viewcode',]
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
@@ -74,7 +69,7 @@
 exclude_patterns = []
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = None
 
 
 # -- Options for HTML output -------------------------------------------------
@@ -162,6 +157,24 @@
      'Miscellaneous'),
 ]
 
+
+# -- Options for Epub output -------------------------------------------------
+
+# Bibliographic Dublin Core info.
+epub_title = project
+
+# The unique identifier of the text. This can be a ISBN number
+# or the project homepage.
+#
+# epub_identifier = ''
+
+# A unique identification for the text.
+#
+# epub_uid = ''
+
+# A list of files that should not be packed into the epub file.
+epub_exclude_files = ['search.html']
+
 # -- Extension configuration -------------------------------------------------
 # -- Options for intersphinx extension ---------------------------------------
 
diff --git a/docs/index.rst b/docs/index.rst
index a2dc5109..6668ac83 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -25,6 +25,7 @@ examples folder.
    level-8-pass-a-folder-full-of-templates/README.rst
    level-9-moban-dependency-as-pypi-package/README.rst
    level-10-moban-dependency-as-git-repo/README.rst
+   level-11-use-handlebars/README.rst
 
 In pratice, the following use cases were found interesting to go along with.
 
diff --git a/docs/level-11-use-handlebars/.moban.cd/data.base.yaml b/docs/level-11-use-handlebars/.moban.cd/data.base.yaml
new file mode 100644
index 00000000..2c16d47a
--- /dev/null
+++ b/docs/level-11-use-handlebars/.moban.cd/data.base.yaml
@@ -0,0 +1,2 @@
+nihao: shijie
+hello: shijie
\ No newline at end of file
diff --git a/docs/level-11-use-handlebars/.moban.td/base.hbs b/docs/level-11-use-handlebars/.moban.td/base.hbs
new file mode 100644
index 00000000..ded3b3f7
--- /dev/null
+++ b/docs/level-11-use-handlebars/.moban.td/base.hbs
@@ -0,0 +1,5 @@
+
+{{hello}}
+
+{{nihao}}
+
diff --git a/docs/level-11-use-handlebars/.moban.yml b/docs/level-11-use-handlebars/.moban.yml
new file mode 100644
index 00000000..62af65fe
--- /dev/null
+++ b/docs/level-11-use-handlebars/.moban.yml
@@ -0,0 +1,6 @@
+requires:
+  - moban-handlebars
+
+targets:
+  - a.output: a.template.handlebars
+  - b.output: base.hbs
diff --git a/docs/level-11-use-handlebars/README.rst b/docs/level-11-use-handlebars/README.rst
new file mode 100644
index 00000000..80c1f6b7
--- /dev/null
+++ b/docs/level-11-use-handlebars/README.rst
@@ -0,0 +1,31 @@
+Level 11: use handlebars
+================================================================================
+
+moban is extensible via lml. Charlie Liu through Google Code-in 2018 has
+kindly contributed moban-handlebars plugin.
+
+
+Evaluation
+--------------------------------------------------------------------------------
+
+Please go to `docs/level-11-use-handlebars` directory.
+
+
+Here is the `.moban.yml`, which replaces `jj2` with handlebars files in level 4::
+
+   requires:
+     - moban-handlebars
+   
+   targets:
+     - a.output: a.template.handlebars
+     - b.output: base.hbs
+
+
+where `targets` should lead an array of dictionaries, `requires` installs
+moban-handlebars extension. You can provide file suffixes: ".handlebars"
+or ".hbs" to your handlebars template.
+
+Here is how to launch it
+.. code-block:: bash
+
+    moban
diff --git a/docs/level-11-use-handlebars/a.template.handlebars b/docs/level-11-use-handlebars/a.template.handlebars
new file mode 100644
index 00000000..2cc9b416
--- /dev/null
+++ b/docs/level-11-use-handlebars/a.template.handlebars
@@ -0,0 +1 @@
+{{no-inheritance}}
diff --git a/docs/level-11-use-handlebars/b.output b/docs/level-11-use-handlebars/b.output
new file mode 100644
index 00000000..e91bcf2b
--- /dev/null
+++ b/docs/level-11-use-handlebars/b.output
@@ -0,0 +1,4 @@
+
+world
+
+shijie
diff --git a/docs/level-11-use-handlebars/data.yml b/docs/level-11-use-handlebars/data.yml
new file mode 100644
index 00000000..dc8c957d
--- /dev/null
+++ b/docs/level-11-use-handlebars/data.yml
@@ -0,0 +1,3 @@
+overrides: data.base.yaml
+hello: world
+no-inheritance: handlebars does not support inheritance
\ No newline at end of file
diff --git a/docs/level-4-single-command/README.rst b/docs/level-4-single-command/README.rst
index 718290a0..5ad698f6 100644
--- a/docs/level-4-single-command/README.rst
+++ b/docs/level-4-single-command/README.rst
@@ -12,7 +12,7 @@ Evaluation
 Please go to `docs/level-4-single-command` directory.
 
 
-Here is the `.moban.yml`, whihc replaces the command in level 3::
+Here is the `.moban.yml`, which replaces the command in level 3::
 
     targets:
       - a.output: a.template
diff --git a/moban/engine_handlebars.py b/moban/engine_handlebars.py
deleted file mode 100644
index 8a190ae2..00000000
--- a/moban/engine_handlebars.py
+++ /dev/null
@@ -1,26 +0,0 @@
-import codecs
-
-from lml.plugin import PluginInfo
-
-import moban.utils as utils
-import moban.constants as constants
-from pybars import Compiler
-
-
-@PluginInfo(constants.TEMPLATE_ENGINE_EXTENSION, tags=["handlebars", "hbs"])
-class EngineHandlebars(object):
-    def __init__(self, template_dirs):
-        self.template_dirs = template_dirs
-
-    def get_template(self, template_file):
-        actual_file = utils.get_template_path(
-            self.template_dirs, template_file
-        )
-        with codecs.open(actual_file, "r", encoding="utf-8") as source:
-            hbr_template = Compiler().compile(source.read())
-        return hbr_template
-
-    def apply_template(self, template, data, _):
-        rendered_content = "".join(template(data))
-        rendered_content = rendered_content
-        return rendered_content
diff --git a/moban/plugins.py b/moban/plugins.py
index f8a230d0..544dc2a4 100644
--- a/moban/plugins.py
+++ b/moban/plugins.py
@@ -8,7 +8,7 @@
 from moban.strategy import Strategy
 from moban.hashstore import HASH_STORE
 
-BUILTIN_EXENSIONS = ["moban.jinja2.engine", "moban.engine_handlebars"]
+BUILTIN_EXENSIONS = ["moban.jinja2.engine"]
 
 
 class LibraryManager(PluginManager):
@@ -24,7 +24,6 @@ class BaseEngine(object):
     def __init__(self, template_dirs, context_dirs, engine_cls):
         # pypi-moban-pkg cannot be found if removed
         make_sure_all_pkg_are_loaded()
-
         template_dirs = list(expand_template_directories(template_dirs))
         verify_the_existence_of_directories(template_dirs)
         context_dirs = expand_template_directory(context_dirs)
@@ -62,11 +61,15 @@ def apply_template(self, template_abs_path, template, data, output_file):
         rendered_content = self.engine.apply_template(
             template, data, output_file
         )
+        rendered_content = utils.strip_off_trailing_new_lines(rendered_content)
+        rendered_content = rendered_content.encode("utf-8")
         flag = HASH_STORE.is_file_changed(
-            output_file, rendered_content.encode("utf-8"), template_abs_path
+            output_file, rendered_content, template_abs_path
         )
         if flag:
-            utils.write_file_out(output_file, rendered_content)
+            utils.write_file_out(
+                output_file, rendered_content, strip=False, encode=False
+            )
             utils.file_permissions_copy(template_abs_path, output_file)
         return flag
 
diff --git a/requirements.txt b/requirements.txt
index 0a7e7b8d..cc7ce754 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 pyyaml>=3.11
 jinja2>=2.7.1
-lml==0.0.4
+lml>=0.0.7
 crayons
-pybars3
diff --git a/rnd_requirements.txt b/rnd_requirements.txt
new file mode 100644
index 00000000..8ead802a
--- /dev/null
+++ b/rnd_requirements.txt
@@ -0,0 +1 @@
+https://github.com/moremoban/moban-handlebars/archive/master.zip
diff --git a/setup.py b/setup.py
index 0d5b00dc..8aad5959 100644
--- a/setup.py
+++ b/setup.py
@@ -28,9 +28,9 @@
 DOWNLOAD_URL = '%s/archive/0.3.3.tar.gz' % URL
 FILES = ['README.rst', 'CONTRIBUTORS.rst', 'CHANGELOG.rst']
 KEYWORDS = [
+    'python',
     'jinja2',
     'moban',
-    'python'
 ]
 
 CLASSIFIERS = [
@@ -48,9 +48,8 @@
 INSTALL_REQUIRES = [
     'pyyaml>=3.11',
     'jinja2>=2.7.1',
-    'lml==0.0.4',
+    'lml>=0.0.7',
     'crayons',
-    'pybars3',
 ]
 SETUP_COMMANDS = {}
 
diff --git a/tests/fixtures/handlebars_tests/file_tests.json b/tests/fixtures/handlebars_tests/file_tests.json
deleted file mode 100644
index 39e8d602..00000000
--- a/tests/fixtures/handlebars_tests/file_tests.json
+++ /dev/null
@@ -1 +0,0 @@
-{"test": "here"}
\ No newline at end of file
diff --git a/tests/fixtures/handlebars_tests/file_tests.template b/tests/fixtures/handlebars_tests/file_tests.template
deleted file mode 100644
index c905f153..00000000
--- a/tests/fixtures/handlebars_tests/file_tests.template
+++ /dev/null
@@ -1 +0,0 @@
-{{test}}
\ No newline at end of file
diff --git a/tests/test_docs.py b/tests/test_docs.py
index 795b3793..08fd7aeb 100644
--- a/tests/test_docs.py
+++ b/tests/test_docs.py
@@ -100,6 +100,11 @@ def test_level_10(self):
         folder = "level-10-moban-dependency-as-git-repo"
         self._raw_moban(["moban"], folder, expected, "test.txt")
 
+    def test_level_11(self):
+        expected = "handlebars does not support inheritance\n"
+        folder = "level-11-use-handlebars"
+        self._raw_moban(["moban"], folder, expected, "a.output")
+
     def test_misc_1(self):
         expected = "test file\n"
 
diff --git a/tests/test_engine.py b/tests/test_engine.py
index 03590c95..dc47d4f5 100644
--- a/tests/test_engine.py
+++ b/tests/test_engine.py
@@ -12,7 +12,6 @@
     expand_template_directories,
 )
 from moban.jinja2.engine import Engine
-from moban.engine_handlebars import EngineHandlebars
 
 
 @PluginInfo("library", tags=["testmobans"])
@@ -42,11 +41,6 @@ def test_default_template_type():
     assert engine.engine_cls == Engine
 
 
-def test_handlebars_template_type():
-    engine = ENGINES.get_engine("hbs", [], "")
-    assert engine.engine_cls == EngineHandlebars
-
-
 def test_default_mako_type():  # fake mako
     engine = ENGINES.get_engine("mako", [], "")
     assert engine.engine_cls.__name__ == "MakoEngine"
@@ -83,17 +77,6 @@ def test_file_tests():
     os.unlink(output)
 
 
-def test_handlebars_file_tests():
-    output = "test.txt"
-    path = os.path.join("tests", "fixtures", "handlebars_tests")
-    engine = BaseEngine([path], path, EngineHandlebars)
-    engine.render_to_file("file_tests.template", "file_tests.json", output)
-    with open(output, "r") as output_file:
-        content = output_file.read()
-        eq_(content, "here")
-    os.unlink(output)
-
-
 def test_global_template_variables():
     output = "test.txt"
     path = os.path.join("tests", "fixtures", "globals")
diff --git a/tests/test_handlebar_engine.py b/tests/test_handlebar_engine.py
deleted file mode 100644
index 57249fd0..00000000
--- a/tests/test_handlebar_engine.py
+++ /dev/null
@@ -1,14 +0,0 @@
-import os
-
-from nose.tools import eq_
-from moban.jinja2.engine import Engine
-
-
-def test_handlebars_template_not_found():
-    path = os.path.join("tests", "fixtures", "jinja_tests")
-    engine = Engine([path])
-    template = engine.get_template("file_tests.template")
-    data = dict(test="here")
-    result = engine.apply_template(template, data, None)
-    expected = "yes\nhere"
-    eq_(expected, result)
diff --git a/tests/test_jinja2_engine.py b/tests/test_jinja2_engine.py
index fa72dbe7..57249fd0 100644
--- a/tests/test_jinja2_engine.py
+++ b/tests/test_jinja2_engine.py
@@ -1,14 +1,14 @@
 import os
 
 from nose.tools import eq_
-from moban.engine_handlebars import EngineHandlebars
+from moban.jinja2.engine import Engine
 
 
 def test_handlebars_template_not_found():
-    path = os.path.join("tests", "fixtures", "handlebars_tests")
-    engine = EngineHandlebars([path])
+    path = os.path.join("tests", "fixtures", "jinja_tests")
+    engine = Engine([path])
     template = engine.get_template("file_tests.template")
     data = dict(test="here")
     result = engine.apply_template(template, data, None)
-    expected = "here"
+    expected = "yes\nhere"
     eq_(expected, result)