diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index a2a64d9..3dce366 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -16,6 +16,12 @@ are used for versioning (schema follows below):
   0.3.4 to 0.4).
 - All backwards incompatible changes are mentioned in this document.
 
+0.4
+---
+2023-12-06
+
+- Streamline on how to use traits, pre- and post-save hooks.
+
 0.3.1
 -----
 2023-12-04
diff --git a/Makefile b/Makefile
index 972675a..3eebce6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 # Update version ONLY here
-VERSION := 0.3.1
+VERSION := 0.4
 SHELL := /bin/bash
 # Makefile for project
 VENV := ~/.virtualenvs/fake.py/bin/activate
diff --git a/fake.py b/fake.py
index 2ef9920..3489c2f 100644
--- a/fake.py
+++ b/fake.py
@@ -35,7 +35,7 @@
 )
 
 __title__ = "fake.py"
-__version__ = "0.3.1"
+__version__ = "0.4"
 __author__ = "Artur Barseghyan <artur.barseghyan@gmail.com>"
 __copyright__ = "2023 Artur Barseghyan"
 __license__ = "MIT"
@@ -1554,7 +1554,6 @@ class FactoryMeta(type):
         "svg_file",
         "text",
         "txt_file",
-        "txt_file",
         "url",
         "username",
         "uuid",
diff --git a/pyproject.toml b/pyproject.toml
index 5886b98..63416d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 name = "fake.py"
 description = "Minimalistic, standalone alternative fake data generator with no dependencies."
 readme = "README.rst"
-version = "0.3.1"
+version = "0.4"
 dependencies = []
 authors = [
     {name = "Artur Barseghyan", email = "artur.barseghyan@gmail.com"},
@@ -134,7 +134,7 @@ ignore-path = [
 ]
 
 [tool.pytest.ini_options]
-minversion = "0.3.1"
+minversion = "0.4"
 addopts = [
     "-ra",
     "-vvv",