diff --git a/documentation/dev-portal/book.toml b/documentation/dev-portal/book.toml
index 258ad6deb2..3c17fcc1cf 100644
--- a/documentation/dev-portal/book.toml
+++ b/documentation/dev-portal/book.toml
@@ -49,10 +49,9 @@ assets_version = "2.0.0" # do not edit: managed by `mdbook-admonish install`
 [preprocessor.variables.variables]
 # code prerequisites versions
 minimum_rust_version = "1.66"
-platform_release_version = "v1.1.19"
-upcoming_platform_release_version = "v1.1.20" # to use when adding 'edit on github' plugin
-mix_node_release_version = "v1.1.20"
-#
+# TODO remove this in place of develop in next release
+platform_release_version = "v1.1.20"
+
 [preprocessor.last-changed]
 command = "mdbook-last-changed"
 renderer = ["html"]
diff --git a/documentation/docs/book.toml b/documentation/docs/book.toml
index 809f2f1c33..bb62e9998e 100644
--- a/documentation/docs/book.toml
+++ b/documentation/docs/book.toml
@@ -49,10 +49,8 @@ assets_version = "2.0.0" # do not edit: managed by `mdbook-admonish install`
 [preprocessor.variables.variables]
 minimum_rust_version = "1.66"
 
-# old variables
-# platform_release_version = "v1.1.19"
-# upcoming_platform_release_version = "v1.1.20" # to use in 'edit page on github' plugin (coming soon)
-# mix_node_release_version = "v1.1.20"
+# old variables - this is still needed for links.. TODO change to develop?
+platform_release_version = "v1.1.20"
 
 [preprocessor.last-changed]
 command = "mdbook-last-changed"