Add ChangeLog entry
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
diff --git a/ChangeLog.d/relaxed-psk-semantics.txt b/ChangeLog.d/relaxed-psk-semantics.txt
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+API changes
+ * Modify semantics of `mbedtls_ssl_conf_[opaque_]psk()`:
+ In Mbed TLS 2.X, the API prescribes that later calls overwrite
+ the effect of earlier calls, implying that there can be at most one
+ statically configured PSK. In Mbed TLS 3.X, multiple invocations of
+ `mbedtls_ssl_conf_[opaque_]psk()` can be attempted to register
+ multiple PSKs. Once an implementation-defined limit of PSKs
+ is reached, the functions ignore the request to add
+ further PSKs and fail non-fatally.