diff --git a/Running-from-source.md b/Running-from-source.md
index fe7127d..31831d1 100644
--- a/Running-from-source.md
+++ b/Running-from-source.md
@@ -1,12 +1,12 @@
 # Running from source
 
-* `stable` branch, up to version 4.2.7, uses Python 3.7.x, although it 
-  should work perfectly well with any 3.8 or 3.9 version as well.
+* `stable` is now targeted against Python 3.10, and will no longer work under Python 3.8 or earlier (Ref: 
+[TypeError when running from source on stable branch #1497](https://github.com/EDCD/EDMarketConnector/issues/1497))
 
-* `main` is now targeted against Python 3.9, although should also work 
-  under 3.8.  
+* `main` is now targeted against Python 3.10, and will no longer work under Python 3.8 or earlier (Ref: 
+[TypeError when running from source on stable branch #1497](https://github.com/EDCD/EDMarketConnector/issues/1497))
 
-* `develop` is targeted at Python 3.9 and has no guarantee about working on 
+* `develop` is targeted at Python 3.10 and has no guarantee about working on 
   earlier Python versions.
 
 In general you can check the contents of the file `.python-version` in the