diff --git a/CHANGES.md b/CHANGES.md
index 2d1731f..71438ae 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,22 +1,5 @@
 # Backend internal interview (rust)
 
-## CHANGES: fixed branch
+## CHANGES: improved branch 
 
-- Moving from **HashMap** to **BTreeMap** to preseve loading lines order.
-- Fix **lines parser** in Maps **metrics** and in **aggregated_metrics** to be handled properly.
-- Fix **unwrap / expect** for obvious reasons, add simple error message via **map_err**, **unwrap_or_else** and **closure function**.
-- Fix some source code lines order, output format and conversions.
-- Change some **iterators** to <u>functional mode</u>.
-- Separate tasks to independent funtions for better isolation, less responsibilities and help on **tests** handling.
-- Adding **output_path** to help on result output options.
-- Following **unit tests** are implemented:
-  - <u>test_load_input</u> test load input file **input.txt**.
-  - <u>test_invalid_line_value</u> test use invalid value in line parsing.
-  - <u>test_invalid_line</u> test use invlid value in line parsing.
-  - <u>test_expected_metrics</u> test load input data from **input.txt** compare with **output_expected.txt**.
   
-> Code simply **works as expected**
-> It is not be able to **process multiple metrics in parallel** yet.
-> A full refactoring has to be done for <u>better quality, maintenance and be more readable</u>. (Structs, implementaitions, settings for multiple inputs, etc).
-
-Next round in: [Improve branch](/NewRelic/be-technical-interview-rust/src/branch/improved)