diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9607497..cb95906 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,15 +1,72 @@
+## 1.0.0
+### Features:
+  - `Temperature#boil_water?`, `Temperature#freeze_water?` (#47).
+
+### Docs
+  - Added link to docs in README.md (42).
+
+### Tech improvements:
+  - Global refactoring: splitting ot the God Object into modules.
+  - [Inch CI](https://inch-ci.org/) setup (#45).
+
+## 0.2.2
+### Features:
+  - Include Comparable (#24).
+  - Introduction of shorter form (`Temperature` instead of `BasicTemperature::Temperature`) (#25).
+  - Added simple memoization (#26).
+  - Added rounding (#26).
+  - Alias `[]` for `new` (#27).
+  - Added support of `Rankine` scale.
+  - `Temperature#inspect`.
+
+### Fixes:
+  - Updated `BasicTemperature#==`.
+  (When two temperatures had different scales - automatic conversion was not performed.) (#18).
+  - Recticted Rubocop version for Code Climate (#22).
+  - Typo `Celsium` instead of `Celcius` (#23).
+  - Added Gemfile.lock to .gitignore (#38).
+
+### Docs
+  - Added `Active Development Warning` (#19).
+  - Badges: Gem Version, Build Status, Maintainability, Coverage Status, License: MIT, Patreon, Inch CI (#14) (#20) (#40).
+  - Added docs for all public API (#38).
+  - Added usage section in README.md (#38).
+
+### Tech improvements:
+  - [Coverals](https://docs.coveralls.io/ruby-on-rails) setup (#10).
+  - [SimpleCov](https://github.com/colszowka/simplecov) setup (#10).
+  - [Code Climate](https://codeclimate.com/) setup (#13).
+  - [ReverseCoverage] setup (#21).
+  - [SDoc] setup (#38).
+  - [Rerun] setup (#38).
+  - Autodeploy of docs to Github Pages (#39).
+
+
 ## 0.2.1
 ### Features:
-  - Spaceship operator <=>
+  - Spaceship operator <=> (#2).
 
 ### Tech improvements:
-  - [byebug](https://github.com/deivid-rodriguez/byebug) as dev dependency
-  - [rspec](https://rspec.info/) as dev dependency
-  - [rubocop](https://github.com/rubocop-hq/rubocop) as dev dependency
-  - [Travis CI](https://travis-ci.com/) setup
+  - [Byebug](https://github.com/deivid-rodriguez/byebug) setup (#1).
+  - [RSpec](https://rspec.info/) setup (#3).
+  - [RuboCop](https://github.com/rubocop-hq/rubocop) setup (#5).
+  - [Travis CI](https://travis-ci.com/) setup (#4).
+
 
 ## 0.2.0
-  - 'Accidentally' yanked
+  - 'Accidentally' yanked.
+
 
 ## 0.1.0
-  - Initial Release.
\ No newline at end of file
+  - Initial Release.
+
+### Features:
+  - Creation of `Temperature` using positional arguments.
+  - Creation of `Temperature` using keyword arguments.
+  - Creation of `Temperature`s from already existing temperature objects (`Temperature#set_degrees`, `Temperature#set_scale`).
+  - Conversion to Celsius, Fahrenheit, Kelvin.
+  - Dynamic conversion (`Temperature#to_scale`).
+  - Equality operator `==`.
+  - Addition of `Temperature`s.
+  - Subtraction of `Temperature`s.
+  - Support of Ruby coersion mechanism.