diff --git a/candv/utils.py b/candv/_utils.py
similarity index 100%
rename from candv/utils.py
rename to candv/_utils.py
diff --git a/candv/core.py b/candv/core.py
index 776e12c..a30749b 100644
--- a/candv/core.py
+++ b/candv/core.py
@@ -12,7 +12,7 @@
 from .exceptions import CandvInvalidGroupMemberError
 from .exceptions import CandvMissingConstantError
 
-from .utils import export
+from ._utils import export
 
 
 UNBOUND_CONSTANT_CONTAINER_NAME = "__UNBOUND__"
@@ -102,10 +102,13 @@ def full_name(self):
     )
     return f"{prefix}.{self.name}"
 
-  def to_primitive(self, context=None):
+  def to_primitive(self, *args, **kwargs):
     """
     Represent the constant via Python's primitive data structures.
 
+    .. versionchanged:: 1.5.0
+       The ``context`` param is replaced by ``*args`` and ``**kwargs``.
+
     .. versionadded:: 1.3.0
 
     """
@@ -185,9 +188,9 @@ def _make_to_primitive(group, constant):
     constant_primitive = constant.to_primitive
     group_primitive = group.to_primitive
 
-    def to_primitive(self, context=None):
-      primitive = constant_primitive(context)
-      primitive.update(group_primitive(context))
+    def to_primitive(self, *args, **kwargs):
+      primitive = constant_primitive(*args, **kwargs)
+      primitive.update(group_primitive(*args, **kwargs))
       return primitive
 
     return types.MethodType(to_primitive, group)
@@ -494,12 +497,16 @@ def iteritems(self):
   #: values.
   itervalues = iterconstants
 
-  def to_primitive(self, context=None):
+  def to_primitive(self, *args, **kwargs):
     """
+    .. versionchanged:: 1.5.0
+       The ``context`` param is replaced by ``*args`` and ``**kwargs``.
+
     .. versionadded:: 1.3.0
+
     """
     items = [
-      x.to_primitive(context)
+      x.to_primitive(*args, **kwargs)
       for x in self.iterconstants()
     ]
     return {
diff --git a/candv/exceptions.py b/candv/exceptions.py
index be434fb..fc2a73a 100644
--- a/candv/exceptions.py
+++ b/candv/exceptions.py
@@ -1,4 +1,4 @@
-from .utils import export
+from ._utils import export
 
 
 @export
diff --git a/candv/ext.py b/candv/ext.py
index 5b81ea7..303e8bb 100644
--- a/candv/ext.py
+++ b/candv/ext.py
@@ -9,7 +9,7 @@
 
 from .exceptions import CandvValueNotFoundError
 
-from .utils import export
+from ._utils import export
 
 
 @export
@@ -59,11 +59,15 @@ def merge_into_group(self, group):
     group.verbose_name = self.verbose_name
     group.help_text = self.help_text
 
-  def to_primitive(self, context=None):
+  def to_primitive(self, *args, **kwargs):
     """
+    .. versionchanged:: 1.5.0
+       The ``context`` param is replaced by ``*args`` and ``**kwargs``.
+
     .. versionadded:: 1.3.0
+
     """
-    primitive = super().to_primitive(context)
+    primitive = super().to_primitive(*args, **kwargs)
     primitive.update({
       'verbose_name': (
         str(self.verbose_name)
@@ -117,18 +121,22 @@ def merge_into_group(self, group):
     super().merge_into_group(group)
     group.value = self.value
 
-  def to_primitive(self, context=None):
+  def to_primitive(self, *args, **kwargs):
     """
+    .. versionchanged:: 1.5.0
+       The ``context`` param is replaced by ``*args`` and ``**kwargs``.
+
     .. versionadded:: 1.3.0
+
     """
-    primitive = super().to_primitive(context)
+    primitive = super().to_primitive(*args, **kwargs)
     value = self.value
 
     if hasattr(value, "isoformat"):
       value = value.isoformat()
 
     if hasattr(value, "to_primitive"):
-      value = value.to_primitive(context)
+      value = value.to_primitive(*args, **kwargs)
 
     elif callable(value):
       value = value()
diff --git a/candv/version.py b/candv/version.py
index 07857d8..d7cb2e0 100644
--- a/candv/version.py
+++ b/candv/version.py
@@ -1,6 +1,7 @@
-VERSION_MAJOR = 1
-VERSION_MINOR = 4
-VERSION_PATCH = 0
+VERSION_SUFFIX = None
+VERSION_PATCH  = "0" + (VERSION_SUFFIX or "")
+VERSION_MINOR  = "5"
+VERSION_MAJOR  = "1"
 
 VERSION_INFO = (VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH)
 VERSION = ".".join([str(x) for x in VERSION_INFO])
diff --git a/docs/candv.rst b/docs/candv.rst
index 6727d25..de1e2e6 100644
--- a/docs/candv.rst
+++ b/docs/candv.rst
@@ -28,14 +28,6 @@ candv.ext module
    :undoc-members:
    :show-inheritance:
 
-candv.utils module
-------------------
-
-.. automodule:: candv.utils
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
 candv.version module
 --------------------
 
diff --git a/docs/conf.py b/docs/conf.py
index 9aec8be..3f1f6f6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -9,8 +9,8 @@
 
 
 project = "candv"
-version = "1.4"
-release = "1.4.0"
+version = "1.5"
+release = "1.5.0"
 year = datetime.now().year
 copyright = f"{year}, Oleksandr Oblovatnyi"
 
@@ -53,6 +53,10 @@
 source_suffix = ".rst"
 master_doc = "index"
 
+autodoc_default_options = {
+  'member-order': 'bysource',
+}
+
 intersphinx_mapping = {
-  'https://docs.python.org/3': None,
+  "https://docs.python.org/3": None,
 }
diff --git a/docs/index.rst b/docs/index.rst
index dd0f64e..e08c110 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -33,6 +33,12 @@ Contents
 Changelog
 =========
 
+* `1.5.0`_ (Nov 18, 2020)
+
+  API changes:
+
+  * ``to_primitive()`` methods use ``*args`` and ``**kwargs`` instead of the ``context`` param.
+
 * `1.4.0`_ (Oct 30, 2020)
 
   API changes: public API is not changed, however, the following internal changes are introduced:
@@ -175,6 +181,7 @@ Indices and tables
 .. _issue #1: https://github.com/oblalex/candv/issues/1
 .. _issue #11: https://github.com/oblalex/candv/issues/11
 
+.. _1.5.0: https://github.com/oblalex/candv/compare/v1.4.0...v1.5.0
 .. _1.4.0: https://github.com/oblalex/candv/compare/v1.3.1...v1.4.0
 .. _1.3.1: https://github.com/oblalex/candv/compare/v1.3.0...v1.3.1
 .. _1.3.0: https://github.com/oblalex/candv/compare/v1.2.0...v1.3.0
diff --git a/setup.py b/setup.py
index d9b5dad..8b49b33 100644
--- a/setup.py
+++ b/setup.py
@@ -1,15 +1,20 @@
 import itertools
 import os
 import shlex
+import sys
+
+if sys.version_info >= (3, 9):
+  List  = list
+  Tuple = tuple
+else:
+  from typing import List
+  from typing import Tuple
 
 from pathlib import Path
 from setuptools import setup
 from subprocess import check_output
 
-from typing import List
 from typing import Optional
-from typing import Text
-from typing import Tuple
 
 
 __here__ = Path(__file__).absolute().parent
@@ -19,7 +24,7 @@
 exec(compile(version_file_path.read_text(), version_file_path, "exec"))
 
 
-def maybe_get_shell_output(command: Text) -> Text:
+def maybe_get_shell_output(command: str) -> str:
   try:
     args = shlex.split(command)
     with open(os.devnull, "w") as devnull:
@@ -28,11 +33,11 @@ def maybe_get_shell_output(command: Text) -> Text:
     pass
 
 
-def maybe_get_current_branch_name() -> Optional[Text]:
+def maybe_get_current_branch_name() -> Optional[str]:
   return maybe_get_shell_output("git rev-parse --abbrev-ref HEAD")
 
 
-def maybe_get_current_commit_hash() -> Optional[Text]:
+def maybe_get_current_commit_hash() -> Optional[str]:
   return maybe_get_shell_output("git rev-parse --short HEAD")