diff --git a/CHANGELOG.md b/CHANGELOG.md
index fa1c79c..8795995 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,15 +1,11 @@
 # Change Log
 
-All notable changes to the "translator-helper" extension will be documented in this file.
-
-Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
-
-## [0.3.0]
+## [0.3.0] - 2022-05-09
 
 - Automatically copy the translated text to clipboard for the `translate` command.
-- Support selection hover translation. You can select a word or a sentence, then you will see a popup with the translated text. You can turn off this feature in the settings.
+- Support selection hover translation. You can select a word or a sentence, then you will see a popup with the translated text. Click **Copy** to copy the translated text. You can turn off this feature in the settings.
 
-## [0.2.0]
+## [0.2.0] - 2022-05-08
 
 - Update dependencies.
 
diff --git a/README.md b/README.md
index 1c22b4d..6e34498 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,7 @@ This extension contributes the following settings:
 - `translatorHelper.api`: Specify the translate API. Options: `google`, `google-cn`.
 - `translatorHelper.sourceLanguage`: The source language code. The default value is `en`.
 - `translatorHelper.targetLanguage`: The target language code. The default value is `zh-CN`.
+- `translatorHelper.enableSelectionHoverTranslation`: Whether to enable selection and hover translation. The default value is `true`.
 
 The source and target languages are identified using the [iso-639-1](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) codes. For example, the source language is English (en) and the target language is Chinese-Simplified (zh-CN). You can find all the supported languages here: [Language support](https://cloud.google.com/translate/docs/languages)