File compat-2.x.h: Use the new names directly instead
Member MBEDTLS_CIPHER_BLKSIZE_MAX: For the maximum block size of a cipher supported by the CMAC module, use MBEDTLS_CMAC_MAX_BLOCK_SIZE. For the maximum block size of a cipher supported by the cipher module, use MBEDTLS_MAX_BLOCK_LENGTH.
Member mbedtls_ecp_write_key (mbedtls_ecp_keypair *key, unsigned char *buf, size_t buflen): Note that although this function accepts an output buffer that is smaller or larger than the key, most key import interfaces require the output to have exactly key's nominal length. It is generally simplest to pass the key's nominal length as buflen, after checking that the output buffer is large enough. See the description of the buflen parameter for how to calculate the nominal length. To avoid this difficulty, use mbedtls_ecp_write_key_ext() instead. mbedtls_ecp_write_key() is deprecated and will be removed in a future version of the library.
Member MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT: Support for the legacy version of the DTLS Connection ID feature is deprecated. Please switch to the standardized version defined in RFC 9146 enabled by utilizing MBEDTLS_SSL_DTLS_CONNECTION_ID without use of MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT.
Member PSA_DH_FAMILY_CUSTOM: This value is not useful, so this macro will be removed in a future version of the library.