diff --git a/README.md b/README.md
index c726ac1e..93c12202 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,9 @@
 - The GitHub actions with KiCad 6 support are tagged as `v2_k6` (stable) and `v2_dk6` (development).
   Consult: [Github Actions tags](#github-actions-tags)
 
+**Important note about PcbDraw 1.0.0
+- This release is incompatible with 0.9.0, I'm trying to fix some issues in the upstream package.
+
 **New on v1.3.0**
 - Diff and Info outputs
 - KiBot tries to download missing tools
diff --git a/docs/README.in b/docs/README.in
index 45ee9fe6..f37ee7a9 100644
--- a/docs/README.in
+++ b/docs/README.in
@@ -13,6 +13,9 @@
 - The GitHub actions with KiCad 6 support are tagged as `v2_k6` (stable) and `v2_dk6` (development).
   Consult: [Github Actions tags](#github-actions-tags)
 
+**Important note about PcbDraw 1.0.0
+- This release is incompatible with 0.9.0, I'm trying to fix some issues in the upstream package.
+
 **New on v1.3.0**
 - Diff and Info outputs
 - KiBot tries to download missing tools