diff --git a/build.properties b/build.properties
index 61e85ff..f530395 100644
--- a/build.properties
+++ b/build.properties
@@ -3,7 +3,7 @@ minecraft_version=1.15.2
 forge_version=31.1.37
 mcp_mappings_channel=snapshot
 mcp_mappings_version=20200225-1.15.1
-cyclopscore_version=1.6.1-1055
+cyclopscore_version=1.6.1-1063
 release_type=release
 fingerprint=bd0353b3e8a2810d60dd584e256e364bc3bedd44
 
diff --git a/resources/changelog/1.15.2-1.2.1.txt b/resources/changelog/1.15.2-1.2.1.txt
new file mode 100644
index 0000000..6ca2561
--- /dev/null
+++ b/resources/changelog/1.15.2-1.2.1.txt
@@ -0,0 +1,4 @@
+As always, don't forget to backup your world before updating!
+Requires CyclopsCore version 1.6.1 or higher.
+
+Initial 1.15 release