diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 13aa430a1c..ca3ede8e7c 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -4,6 +4,7 @@
 - Feature: [#21376] Add option to reload an object (for object developers).
 - Improved: [#21356] Resize the title bar when moving between displays with different scaling factors on Windows systems.
 - Improved: [#21388] Tooltips will now show even when an error message is present.
+- Improved: [#21423] Add mechanism to allow building partly underground.
 - Fix: [#18963] Research table in parks from Loopy Landscapes is imported incorrectly.
 - Fix: [#20907] RCT1/AA scenarios use the 4-across train for the Inverted Roller Coaster.
 - Fix: [#21208] Error message will stay open only for a brief moment when the game has been running a while.
diff --git a/src/openrct2/network/NetworkBase.cpp b/src/openrct2/network/NetworkBase.cpp
index 3302aff33c..6a9c61845c 100644
--- a/src/openrct2/network/NetworkBase.cpp
+++ b/src/openrct2/network/NetworkBase.cpp
@@ -46,7 +46,7 @@ using namespace OpenRCT2;
 // It is used for making sure only compatible builds get connected, even within
 // single OpenRCT2 version.
 
-#define NETWORK_STREAM_VERSION "0"
+#define NETWORK_STREAM_VERSION "1"
 
 #define NETWORK_STREAM_ID OPENRCT2_VERSION "-" NETWORK_STREAM_VERSION