diff --git a/readme.md b/readme.md
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--- a/readme.md
+++ b/readme.md
@@ -1,5 +1,11 @@
 # INAV - navigation capable flight controller
 
+# PSA
+
+> INAV no longer accepts targets based on STM32 F411 MCU.
+
+> INAV 7 is the last INAV official release available for F411 based flight controllers. The next milestone, INAV 8 will not be available for F411 boards.
+
 ![INAV](http://static.rcgroups.net/forums/attachments/6/1/0/3/7/6/a9088858-102-inav.png)
 
 # INAV Community