Add a changelog entry for p256-m
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/ChangeLog.d/p256-m.txt b/ChangeLog.d/p256-m.txt
new file mode 100644
index 0000000..0725488
--- /dev/null
+++ b/ChangeLog.d/p256-m.txt
@@ -0,0 +1,5 @@
+Features
+ * Applications using ECC over secp256r1 through the PSA API can use a
+ new implementation with a much smaller footprint, but some minor
+ usage restrictions. See the documentation of the new configuration
+ option MBEDTLS_P256M_EXAMPLE_DRIVER_ENABLED for details.