diff --git a/release/3.0.0+v2.0.0 b/release/3.0.0+v2.0.0
new file mode 100644
index 0000000..4e58fce
--- /dev/null
+++ b/release/3.0.0+v2.0.0
@@ -0,0 +1,8 @@
+⚠ WARNING! ⚠
+
+This major version upgrade of Plausible requires running a manual data migration
+-- otherwise you'll see all historical data disappear (don't worry, it's
+"probably" still there). 
+
+Take a manual docker volume backup, then see here, and strap in: 
+https://github.com/plausible/analytics/discussions/3132