diff --git a/CMakeLists.txt b/CMakeLists.txt
index ed92b1eca..1309daa4e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,8 +8,8 @@ project(dfhack)
 
 # set up versioning.
 set(DF_VERSION "50.08")
-set(DFHACK_RELEASE "r4rc1")
-set(DFHACK_PRERELEASE TRUE)
+set(DFHACK_RELEASE "r4")
+set(DFHACK_PRERELEASE FALSE)
 
 set(DFHACK_VERSION "${DF_VERSION}-${DFHACK_RELEASE}")
 set(DFHACK_ABI_VERSION 1)
diff --git a/docs/changelog.txt b/docs/changelog.txt
index 3300bd0c1..7761ad8f7 100644
--- a/docs/changelog.txt
+++ b/docs/changelog.txt
@@ -33,6 +33,24 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 
 # Future
 
+## New Plugins
+
+## Fixes
+
+## Misc Improvements
+
+## Documentation
+
+## API
+
+## Internals
+
+## Lua
+
+## Removed
+
+# 50.08-r4
+
 ## New Plugins
 - `logistics`: automatically mark and route items or animals that come to monitored stockpiles. options are toggleable on an overlay that comes up when you have a stockpile selected.
 
@@ -45,22 +63,14 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 - `autonick`: additional nicknames based on burrowing animals, colours, gems, and minerals
 - `stockpiles`: added ``barrels``, ``organic``, ``artifacts``, and ``masterworks`` stockpile presets
 - `orders`: only display import/export/sort/clear panel on main orders screen
+- `orders`: refine order conditions for library orders to reduce cancellation spam
 - Blueprint library: dreamfort: full rewrite and update for DF v50
 - Blueprint library: pump_stack: updated walkthrough and separated dig and channel steps so boulders can be cleared
 - Blueprint library: aquifer_tap: updated walkthrough
-- `orders`: better order conditions for the ``smelting`` library orders to reduce cancellation spam
 - `dig-now`: can now handle digging obsidian that has been formed from magma and water
 
 ## Documentation
-- `blueprint-library-guide`: update Dreamfort screenshots, add ``aquifer_tap`` screenshot
-
-## API
-
-## Internals
-
-## Lua
-
-## Removed
+- `blueprint-library-guide`: update Dreamfort screenshots and links, add ``aquifer_tap`` screenshot
 
 # 50.08-r3
 
diff --git a/library/xml b/library/xml
index f42397811..916a49700 160000
--- a/library/xml
+++ b/library/xml
@@ -1 +1 @@
-Subproject commit f423978117f5eba1d53d5d88937d85069a58382c
+Subproject commit 916a497000651b64272dacda3a5005650d3c0c68
diff --git a/scripts b/scripts
index 04a01e6d3..fcccedb91 160000
--- a/scripts
+++ b/scripts
@@ -1 +1 @@
-Subproject commit 04a01e6d35a467ee40d6b706ce92f1c43a1acfa2
+Subproject commit fcccedb91e48ebdbe151950c86689d52f0617ea9