diff --git a/CODING b/CODING
index 9a9188d..14b6295 100644
--- a/CODING
+++ b/CODING
@@ -105,6 +105,7 @@ Release process instructions
 * Update the ChangeLog file:
     setup.py build_doc -b changes ...and manually merge from the html file
 * Git push and wait jenkins to generate the tarballs and the documentation
+* HACK: Use cython 23.5 to generate the source and the tarball !! see T5589
 * Test the generated tarballs
 * scp tarballs & md5sums to:
   download.enlightenment.org:/srv/web/download.enlightenment.org/public_html/pre-releases/
diff --git a/efl/__init__.py b/efl/__init__.py
index 5038b9c..26528a4 100644
--- a/efl/__init__.py
+++ b/efl/__init__.py
@@ -20,5 +20,5 @@
 # pre-release: "1.13.0-beta1" ( 1, 13, 0 )
 # release:     "1.13.0" ( 1, 13, 0 )
 
-__version__ = "1.20.0"
-__version_info__ = ( 1, 20, 0 )
+__version__ = "1.20.99"
+__version_info__ = ( 1, 20, 99 )