diff --git a/CMakeLists.txt b/CMakeLists.txt
index c6959f03db..43223ba9aa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ project(dfhack)
 
 # set up versioning.
 set(DF_VERSION "50.13")
-set(DFHACK_RELEASE "r3")
+set(DFHACK_RELEASE "r4")
 set(DFHACK_PRERELEASE FALSE)
 
 set(DFHACK_VERSION "${DF_VERSION}-${DFHACK_RELEASE}")
diff --git a/docs/changelog.txt b/docs/changelog.txt
index 9eb61ad09c..04a1e31a05 100644
--- a/docs/changelog.txt
+++ b/docs/changelog.txt
@@ -53,6 +53,22 @@ Template for new versions:
 
 ## New Tools
 
+## New Features
+
+## Fixes
+
+## Misc Improvements
+
+## Documentation
+
+## API
+
+## Lua
+
+## Removed
+
+# 50.13-r4
+
 ## New Features
 - `gui/journal`: new hotkey, accessible from anywhere in fort mode: Ctrl-j
 
diff --git a/library/xml b/library/xml
index 65aea3d5db..661a4fdd59 160000
--- a/library/xml
+++ b/library/xml
@@ -1 +1 @@
-Subproject commit 65aea3d5dba65c7f3ded00adb1b73eb1fee18333
+Subproject commit 661a4fdd5996d0012f84eacb77250854ccb20ba1
diff --git a/scripts b/scripts
index f032986127..ba5c4c7316 160000
--- a/scripts
+++ b/scripts
@@ -1 +1 @@
-Subproject commit f032986127f130bcb29fb596049dab6765f56241
+Subproject commit ba5c4c7316334a907c87ea9adbe71b2cf5c16981