diff --git a/CHANGELOG.md b/CHANGELOG.md
index e505cdd9..c6981171 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [0.15.9] - 2026-06-17
+
 ### Changed
 
 - Migrated from obsoleted dependencies, by [@compulim](https://github.com/compulim), in PR [#457](https://github.com/microsoft/BotFramework-DirectLineJS/pull/457)
@@ -55,6 +57,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
       - [`webpack-stats-plugin@1.1.3`](https://npmjs.com/package/webpack-stats-plugin/v/1.1.3)
       - [`ws@8.21.0`](https://npmjs.com/package/ws/v/8.21.0)
 
+## [0.15.8] - 2026-02-03
+
+- Added `DirectLineOptions.streaming: boolean` for enabling per-conversation streaming delivery mode, by [@pranavjoshi001](https://github.com/pranavjoshi001), in PR [#443](https://github.com/microsoft/BotFramework-DirectLineJS/pull/443)
+
 ## [0.15.6] - 2025-04-17
 
 ### Changed
diff --git a/package-lock.json b/package-lock.json
index 90c8c75a..cf060ead 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "botframework-directlinejs",
-  "version": "0.15.9-0",
+  "version": "0.15.9",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "botframework-directlinejs",
-      "version": "0.15.9-0",
+      "version": "0.15.9",
       "license": "MIT",
       "dependencies": {
         "@babel/runtime": "^7.29.7",
diff --git a/package.json b/package.json
index d9751adf..59c3105c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "botframework-directlinejs",
-  "version": "0.15.9-0",
+  "version": "0.15.9",
   "description": "Client library for the Microsoft Bot Framework Direct Line 3.0 protocol",
   "files": [
     "dist/**/*",