diff --git a/.gitmodules b/.gitmodules
index c5cc0563c..fc7329ce1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -24,10 +24,6 @@
   path = extensions-builtin/stable-diffusion-webui-rembg
   url = https://github.com/vladmandic/sd-extension-rembg
   ignore = dirty
-[submodule "extensions-builtin/multidiffusion-upscaler-for-automatic1111"]
-  path = extensions-builtin/multidiffusion-upscaler-for-automatic1111
-  url = https://github.com/pkuliyi2015/multidiffusion-upscaler-for-automatic1111
-  ignore = dirty
 [submodule "extensions-builtin/sd-webui-agent-scheduler"]
   path = extensions-builtin/sd-webui-agent-scheduler
   url = https://github.com/ArtVentureX/sd-webui-agent-scheduler
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 267933303..1362d998b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -195,6 +195,12 @@ Upgrades are still possible and supported, but clean install is recommended for
     extensions ui now shows actual status of extensions for reviewed extensions  
     if you want to contribute/flag/update extension status, reach out on github or discord  
   - better overall compatibility with A1111 extensions (up to a point)  
+  - [MultiDiffusion](https://github.com/pkuliyi2015/multidiffusion-upscaler-for-automatic1111)  
+    has been removed from list of built-in extensions  
+    you can still install it manually if desired  
+  - [LyCORIS]<https://github.com/KohakuBlueleaf/a1111-sd-webui-lycoris>  
+    has been removed from list of built-in extensions  
+    it is considered obsolete given that all functionality is now built-in  
 - **General**  
   - **Startup**  
     - all main CLI parameters can now be set as environment variable as well