Belated changelog entry for not including check_config.h
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/ChangeLog.d/check-config.txt b/ChangeLog.d/check-config.txt
new file mode 100644
index 0000000..86723e0
--- /dev/null
+++ b/ChangeLog.d/check-config.txt
@@ -0,0 +1,6 @@
+Changes
+ * Explicitly state that mbedtls/check_config.h must not be included manually.
+ When migrating from Mbed TLS 2.x, if you had a custom config.h that
+ included check_config.h, remove this inclusion from the Mbed TLS 3.x
+ configuration file (renamed to mbedtls_config.h). This change was made
+ in Mbed TLS 3.0, but was not announced in a changelog entry at the time.