diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e3acee..c7bf795 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+**XX NOV 2022** VERSION 2.4 Added command-line option (`-u`) to
+remove tracking parameters from URLs included in tweets. A tracking URL
+is a normal URL with parameters attached to it. These parameters are used
+by marketing companies to identify the source of a click and the effectiveness
+of a communication campaign.
+
 **15 NOV 2022** VERSION 2.3 Added command-line option (`-s`) to
 skip retweets. With this option, retweets will be ignored and not posted
 on Mastodon.
diff --git a/README.md b/README.md
index a5aa8b4..22043c2 100644
--- a/README.md
+++ b/README.md
@@ -3,9 +3,11 @@
 Twoot is a python script that extracts tweets from a twitter feed and
 reposts them as toots on a Mastodon account.
 
-**UPDATE 15 NOV 2022** VERSION 2.3 Added command-line option (`-s`) to
-skip retweets. With this option, retweets will be ignored and not posted
-on Mastodon.
+**UPDATE XX NOV 2022** VERSION 2.4 Added command-line option (`-u`) to
+remove tracking parameters from URLs included in tweets. A tracking URL
+is a normal URL with parameters attached to it. These parameters are used
+by marketing companies to identify the source of a click and the effectiveness
+of a communication campaign.
 
 > Previous updates can be found in CHANGELOG.