2.1.0
- tls: Add TLS 1.3 support.
- tls: TLSWrappedBuffer.shutdown() does not raise anymore when the connection is already closed.
- tls: Make TLSWrappedBuffer picklable in the limited cases documented under
mbedtls_ssl_context_loadandmbedtls_ssl_context_savein the backend. - mpi: Remove is_prime() method.