Changelog entry for error code space unification
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/ChangeLog.d/error-unification.txt b/ChangeLog.d/error-unification.txt
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+API changes
+ * The PSA and Mbed TLS error space are now unified. This means that
+ mbedtls_xxx() functions can return PSA_ERROR_xxx values.
+ There is no longer a distinction between "low-level" and "high-level"
+ Mbed TLS error codes..
+ This will not affect most applications since in both cases, the
+ error values are between -32767 and -1 as before.