diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5bb5cab7a..a6d1b7c41 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,9 +7,9 @@ cmake_policy(SET CMP0074 NEW)
 project(dfhack)
 
 # set up versioning.
-set(DF_VERSION "50.09")
-set(DFHACK_RELEASE "r3")
-set(DFHACK_PRERELEASE FALSE)
+set(DF_VERSION "50.10")
+set(DFHACK_RELEASE "beta1")
+set(DFHACK_PRERELEASE TRUE)
 
 set(DFHACK_VERSION "${DF_VERSION}-${DFHACK_RELEASE}")
 set(DFHACK_ABI_VERSION 1)