diff --git a/HISTORY.md b/HISTORY.md
index 766144c..af9c2d2 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Generated by [`auto-changelog`](/~https://github.com/CookPete/auto-changelog).
 
+## [v2.2.0](/~https://github.com/jcw780/wows_ballistics/compare/v2.1.1...v2.2.0) - 2020-07-31
+
+### Commits
+
+- added dispersion charts [`41e6d00`](/~https://github.com/jcw780/wows_ballistics/commit/41e6d00610ce77b5a40c965510a22bbb81eeb92f)
+- feature: added dispersion parameters; separated charts with <hr/> [`a4cc5bd`](/~https://github.com/jcw780/wows_ballistics/commit/a4cc5bd1e06ebe25800bc889ccd08ffe42d35a1b)
+- refactored shellForms.getDefaultData; pass dispersion parameters into formData [`88fab0c`](/~https://github.com/jcw780/wows_ballistics/commit/88fab0c4ee54bc1ff909ac3c5b400097a4fb2575)
+- feature: added tooltips for understood parameters [`bfe31ee`](/~https://github.com/jcw780/wows_ballistics/commit/bfe31eed7c6dab5de75ad7f7342b327eefc6f51d)
+- update version [`17d3d18`](/~https://github.com/jcw780/wows_ballistics/commit/17d3d18a93c53a4304a7a058049553132df4288a)
+- pass dispersion parameters to shellForms [`763e85b`](/~https://github.com/jcw780/wows_ballistics/commit/763e85b700f15f7bd0d00dd9f35345e7b32af9e8)
+- fix: bug where dispersion charts do not update [`24081cf`](/~https://github.com/jcw780/wows_ballistics/commit/24081cfbc729fd079f88e2e30d6825653301cbd1)
+- Update README.md [`9886684`](/~https://github.com/jcw780/wows_ballistics/commit/988668484526734574985cff2a099d339d204dbb)
+- feature: added dispersion charts to initalData [`97d1ef4`](/~https://github.com/jcw780/wows_ballistics/commit/97d1ef4a2626dc34438b30779b470f560de15028)
+
 ## [v2.1.1](/~https://github.com/jcw780/wows_ballistics/compare/v2.1.0...v2.1.1) - 2020-07-30
 
 ### Commits