diff --git a/CHANGELOG.md b/CHANGELOG.md
index 339d8ccc6..e787ded8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,8 @@
 # ChangeLog
+## 1.7.0-alpha0
+### New Features
+- Support range index for int32, int64, double, and date. NOTE: The Range algorithm is experimental only. It is not intended for public use.
+
 ## 1.6.1
 ## Fixed
 - Fix libbson dependency in pkg-config for PPA.
@@ -122,4 +126,4 @@
         To set the KMS providers.
     - mongocrypt_ctx_setopt_key_encryption_key
         To set the key encryption key.
-- Adds support for Azure and GCP KMS providers.
\ No newline at end of file
+- Adds support for Azure and GCP KMS providers.