| API changes | |
| * In modules that implement cryptographic hash functions, many functions | |
| mbedtls_xxx() now return int instead of void, and the corresponding | |
| function mbedtls_xxx_ret() which was identical except for returning int | |
| has been removed. This also concerns mbedtls_xxx_drbg_update(). See the | |
| migration guide for more information. Fixes #4212. |