KEP04: Moved to implemented (#110)

Signed-off-by: Ken Sipe <kensipe@gmail.com>

keps/0004-test-composability.md

@@ -9,8 +9,8 @@ owners:
   - "@kensipe"
 editor: "@kensipe"
 creation-date: 2020-02-12
-last-updated: 2020-04-07
-status: provisional
+last-updated: 2020-05-21
+status: implemented
 ---
 
 # KUTTL Test Composability
@@ -100,3 +100,10 @@ error:
 ```
 
 This file can be specified in place of the old test case directory format as a single YAML file, or, if it is placed in a test case directory, the files in the test case directory must still conform to the old test step index format to ensure proper ordering of `TestSteps` in multiple files.
+
+## KEP History
+
+- 2020-02-12 - Initial draft. (@jbarrick-mesosphere)
+- 2020-05-19 - Implemented Apply in [#102](https://github.com/kudobuilder/kuttl/pull/102) (@kensipe)
+- 2020-05-20 - Implemented Assert [#107](https://github.com/kudobuilder/kuttl/pull/107) and Errors [#108](https://github.com/kudobuilder/kuttl/pull/108) (@kensipe)
+- 2020-05-21 - KEP cleanup and changed to implemented. (@kensipe)