diff --git a/xwords4/android/app/build.gradle b/xwords4/android/app/build.gradle
index cf16f5af1..778d5468a 100644
--- a/xwords4/android/app/build.gradle
+++ b/xwords4/android/app/build.gradle
@@ -1,6 +1,6 @@
def INITIAL_CLIENT_VERS = 10
-def VERSION_CODE_BASE = 161
-def VERSION_NAME = '4.4.165'
+def VERSION_CODE_BASE = 162
+def VERSION_NAME = '4.4.166'
def BUILD_INFO_NAME = "build-info.txt"
// Not all variants use the same BT_UUID. Those with the same talk to
diff --git a/xwords4/android/app/src/main/assets/changes.html b/xwords4/android/app/src/main/assets/changes.html
index 25349ad6f..b1e461232 100644
--- a/xwords4/android/app/src/main/assets/changes.html
+++ b/xwords4/android/app/src/main/assets/changes.html
@@ -13,9 +13,10 @@
- CrossWords 4.4.165 release
+ CrossWords 4.4.166 release
- This release fixes in-game chat
+ This release speeds device-to-device communication for some older
+ games