diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2e653749..5caf31b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,63 +5,51 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [1.4.0] - 2020-02-13
-
 ## [1.4.0-arduino] - 2020-02-13
 
 ### Added
 -   added Core 2.6 endpoints ([#159])
 
-## [1.3.0] - 2019-10-09
-
 ## [1.3.0-arduino] - 2019-10-09
 
 ### Added
 -   added Blockchain API endpoint ([#104])
 
 ### Changed
+-   moved external libraries out of source tree ([#140])
 -   improved API query usage to accept strings ([#114])
 -   improved class members and test coverage ([#93])
 -   improved formatting and maintainability ([#92])
 -   dropped Hunter Package Manager in favor of git submodules in OS builds ([#90])
 -   updated ArduinoJson 5.13.2 >> 6.10.1, usage patterns, and documentation/examples ([#87])
--   moved external libraries out of source tree ([#140])
 
 ### Fixed
 -   fixed typos in Arduino examples ([#86])
 -   changed to "statusCode" '422' to test API Post response for empty Transactions objects ([#85])
 
-## [1.2.0] - 2019-02-16
 ## [1.2.0-arduino] - 2019-02-16
+
 ### Added
 -   arduino CircleCI config ([#73])
+-   added Arduino Sketch Paths to `library.json` ([#67])
+-   added an API `send()` method for the `Transactions` class ([#64])
 
 ### Changed
+-   removed `./src/stl` library ([#78])
 -   updated `keywords.txt`. ([#77])
--   updated `./library.json` package export settings ([#70])
+-   updated `ARDUINO_IDE.sh` script to reflect `lib/` changes ([#76])
 -   reorganized files and documentation ([#75])
--   removed `./src/stl` library ([#78])
 -   automated `ARDUINO_IDE.sh` script ([#72])
--   updated `ARDUINO_IDE.sh` script to reflect `lib/` changes ([#76])
-
-## [1.1.0] - 2019-02-07
-### Added
--   added an API `send()` method for the `Transactions` class ([#64])
--   added Arduino Sketch Paths to `library.json` ([#67])
+-   updated `./library.json` package export settings ([#70])
 
 ### Fixed
--   fixed unterminated comment which resulted in skipped `Node` tests ([#63])
 -   renamed `Helpers` class to avoid naming collision with Cpp-Crypto `Helpers` ([#65])
+-   fixed unterminated comment which resulted in skipped `Node` tests ([#63])
 
-## [1.0.0] - 2019-01-19
--   Initial Release
-
-[1.0.0]: https://github.com/ArkEcosystem/cpp-client/compare/1.0.0...master
 [#63]: https://github.com/ArkEcosystem/cpp-client/pull/63
 [#64]: https://github.com/ArkEcosystem/cpp-client/pull/64
 [#65]: https://github.com/ArkEcosystem/cpp-client/pull/65
 [#67]: https://github.com/ArkEcosystem/cpp-client/pull/67
-[1.1.0]: https://github.com/ArkEcosystem/cpp-client/compare/1.0.0...1.1.0
 [#70]: https://github.com/ArkEcosystem/cpp-client/pull/70
 [#72]: https://github.com/ArkEcosystem/cpp-client/pull/72
 [#73]: https://github.com/ArkEcosystem/cpp-client/pull/73
@@ -69,7 +57,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 [#76]: https://github.com/ArkEcosystem/cpp-client/pull/76
 [#77]: https://github.com/ArkEcosystem/cpp-client/pull/77
 [#78]: https://github.com/ArkEcosystem/cpp-client/pull/78
-[1.2.0]: https://github.com/ArkEcosystem/cpp-client/compare/1.1.0...1.2.0
 [1.2.0-arduino]: https://github.com/ArkEcosystem/cpp-client/compare/1.1.0-arduino...1.2.0-arduino
 [#85]: https://github.com/ArkEcosystem/cpp-client/pull/85
 [#86]: https://github.com/ArkEcosystem/cpp-client/pull/86
@@ -81,7 +68,5 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 [#114]: https://github.com/ArkEcosystem/cpp-client/pull/114
 [#140]: https://github.com/ArkEcosystem/cpp-client/pull/140
 [1.3.0-arduino]: https://github.com/ArkEcosystem/cpp-client/compare/1.2.0-arduino...1.3.0-arduino
-[1.3.0]: https://github.com/ArkEcosystem/cpp-client/compare/1.2.0...1.3.0
 [#159]: https://github.com/ArkEcosystem/cpp-client/pull/159
-[1.4.0]: https://github.com/ArkEcosystem/cpp-client/compare/1.3.0...1.4.0
 [1.4.0]: https://github.com/ArkEcosystem/cpp-client/compare/1.3.0-arduino...1.4.0-arduino