diff --git a/.ruby-version b/.ruby-version
index cb2b00e..f989260 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.0.1
+3.4.4
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..b248951
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,38 @@
+# HAS_VALIDATED_ATTRIBUTES
+
+# Changelog
+
+All notable changes to this project are documented in this file since Version 4 launched.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+### Guiding Principles
+
+- Changelogs are for humans, not machines.
+- There should be an entry for every single version.
+- The same types of changes should be grouped.
+- Versions and sections should be linkable.
+- The latest version comes first.
+- The release date of each version is displayed.
+- Mention whether you follow Semantic Versioning.
+
+### Types of changes
+
+- **Added** for new features.
+- **Changed** for changes in existing functionality.
+- **Deprecated** for soon-to-be removed features.
+- **Removed** for now removed features.
+- **Fixed** for any bug fixes.
+- **Security** in case of vulnerabilities.
+
+## [5.0.0] 2025-12-01
+
+### Added
+
+- Main changelog file created.
+
+### Changed
+
+- Ruby version upgraded to 3.4.4
+- In the gemspec file, allow to be used for Rails versions between 6.0 and 8.1.1.
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
index a0cf223..a863ed2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,10 +4,5 @@
 source "https://rubygems.org"
 source "https://vLEyAxzPMpJK8itRTFw6@gem.fury.io/onehq/"
 
-
-source "https://vLEyAxzPMpJK8itRTFw6@gem.fury.io/onehq/" do
-  gem "testhq"
-end
-
 # Specify your gem's dependencies in send_grid.gemspec
 gemspec
diff --git a/has_validated_attributes.gemspec b/has_validated_attributes.gemspec
index 70342ca..0887a3e 100644
--- a/has_validated_attributes.gemspec
+++ b/has_validated_attributes.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "database_cleaner",           "~> 1.7"
   s.add_development_dependency "has_normalized_attributes",  "~> 0.0", ">= 0.0.8"
   s.add_development_dependency "pg",                         "~> 1.1"
-  s.add_development_dependency "rails",                      "~> 6.1"
+  s.add_development_dependency "rails",                      ">= 6.0", "<= 8.1.1"
   s.add_development_dependency "rspec",                      "~> 3.8"
   s.add_development_dependency "rspec_junit_formatter",      "~> 0.4"
   s.add_development_dependency "rspec-rails",                ">= 4.0.0beta2", "< 5.0"
@@ -38,5 +38,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency "sprockets",                  "~> 3.0"
 
   # test
-  s.add_development_dependency "testhq",                      "~> 2.0"
+  s.add_development_dependency "testhq",                     "~> 5.0.0.pre.beta.1"
 end
diff --git a/lib/has_validated_attributes/version.rb b/lib/has_validated_attributes/version.rb
index adbed87..de9c322 100644
--- a/lib/has_validated_attributes/version.rb
+++ b/lib/has_validated_attributes/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module HasValidatedAttributes
-  VERSION = "2.0.10"
+  VERSION = "5.0.0-beta.1"
 end