CHANGELOG.md

Change Log

Unreleased

v0.10.49 - 2023-04-01

Fixed

• SslConnector no longer sets the SNI extension when connecting to an IP address.

Added

• Implemented Ord, PartialOrd, Eq, and PartialEq for Asn1Integer and Asn1IntegerRef.
• Added X509Ref::crl_distribution_points, and DistPoint.

v0.10.48 - 2023-03-23

Fixed

• Fixed injection vulnerabilities where OpenSSL's configuration mini-language could be used via x509::extension::SubjectAlternativeName and x509::extension::ExtendedKeyUsage. The mini-language can read arbitrary files amongst other things.
  • As part of fixing this SubjectAlternativeName::dir_name and SubjectAlternativeName::other_name are deprecated and their implementations always panic!. If you have a use case for these, please file an issue.
• Fixed several NULL pointer dereferences in OpenSSL that could be triggered via x509::X509Extension::new and x509::X509Extension::new_nid. Note that these methods still accept OpenSSL's configuration mini-language, and therefore should not be used with untrusted data.
• Fixed a data-race with x509::X509Name that are created with x509::X509NameBuilder and then used concurrently.
• Fixed LibreSSL version checking. More functions should now be correctly available on LibreSSL.

v0.10.47 - 2023-03-19

Added

• Added support for X25519 and Ed25519 on LibreSSL and BoringSSL.
• Added Error::library_code and Error::reason_code.

v0.10.46 - 2023-03-14

Fixed

• Fixed a potential null-pointer deref when parsing a PKCS#12 archive with no identity.
• Fixed builds against OpenSSL built with no-cast.
• Fixed debug formatting of GeneralName.

Deprecated

• Deprecated PKcs12Ref::parse in favor of Pkcs12Ref::parse2.
• Deprecated ParsedPkcs12 in favor of ParsedPkcs12_2.
• Deprecated Pkcs12Builder::build in favor of Pkcs12Builder::build2.

Added

• Added X509VerifyParamRef::set_auth_level, X509VerifyParamRef::auth_level, and X509VerifyParamRef::set_purpose.
• Added X509PurposeId and X509Purpose.
• Added X509NameBuilder::append_entry.
• Added PKeyRef::private_key_to_pkcs8.
• Added X509LookupRef::load_crl_file.
• Added Pkcs12Builder::name, Pkcs12Builder::pkey, and Pkcs12Builder::cert.
• Added SslRef::set_method, SslRef::set_private_key_file, SslRef::set_private_key, SslRef::set_certificate, SslRef::set_certificate_chain_file, SslRef::add_client_ca, SslRef::set_client_ca_list, SslRef::set_min_proto_version, SslREf::set_max_proto_version, SslRef::set_ciphersuites, SslRef::set_cipher_list, SslRef::set_verify_cert_store.
• Added X509NameRef::to_owned.
• Added SslContextBuilder::set_num_tickets, SslContextRef::num_tickets, SslRef::set_num_tickets, and SslRef::num_tickets.
• Added CmsContentInfo::verify.

v0.10.45 - 2022-12-20

Fixed

• Removed the newly added CipherCtxRef::minimal_output_size method, which did not work properly.
• Added NO_DEPRECATED_3_0 cfg checks for more APIs.

Added

• Added SslRef::add_chain_cert.
• Added PKeyRef::security_bits.
• Added Provider::set_default_search_path.
• Added CipherCtxRef::cipher_final_unchecked.

v0.10.44 - 2022-12-06

Added

• Added CipherCtxRef::num, CipherCtxRef::minimal_output_size, and CipherCtxRef::cipher_update_unchecked.
• Improved output buffer size checks in CipherCtxRef::cipher_update.
• Added X509Lookup::file and X509LookupRef::load_cert_file.

v0.10.43 - 2022-11-23

Added

• Added Nid::BRAINPOOL_P256R1, Nid::BRAINPOOL_P384R1, Nid::BRAINPOOL_P512R1.
• Added BigNumRef::copy_from_slice.
• Added Cipher constructors for Camellia, CAST5, and IDEA ciphers.
• Added DsaSig.
• Added X509StoreBuilderRef::set_param.
• Added X509VerifyParam::new, X509VerifyParamRef::set_time, and X509VerifyParamRef::set_depth.

v0.10.42 - 2022-09-26

Added

• Added SslRef::psk_identity_hint and SslRef::psk_identity.
• Added SHA-3 constants to Nid.
• Added SslOptions::PRIORITIZE_CHACHA.
• Added X509ReqRef::to_text.
• Added MdCtxRef::size.
• Added X509NameRef::try_cmp.
• Added MdCtxRef::reset.
• Added experimental, unstable support for BoringSSL.

Fixed

• Fixed MdCtxRef::digest_verify_init to support PKeys with only public components.

v0.10.41 - 2022-06-09

Fixed

• Fixed a use-after-free in Error::function and Error::file with OpenSSL 3.x.

Added

• Added MessageDigest::block_size and MdRef::block_size.
• Implemented Ord and Eq for X509 and X509Ref.
• Added X509Extension::add_alias.
• Added SM4 support.
• Added EcGroup::from_components EcGropuRef::set_generator, and EcPointRef::set_affine_coordinates_gfp.

v0.10.40 - 2022-05-04

Fixed

• Fixed the openssl-sys dependency version.

v0.10.39 - 2022-05-02

Deprecated

• Deprecated SslContextBuilder::set_tmp_ecdh_callback and SslRef::set_tmp_ecdh_callback.

Added

• Added SslRef::extms_support.
• Added Nid::create.
• Added CipherCtx, which exposes a more direct interface to EVP_CIPHER_CTX.
• Added PkeyCtx, which exposes a more direct interface to EVP_PKEY_CTX.
• Added MdCtx, which exposes a more direct interface to EVP_MD_CTX.
• Added Pkcs12Builder::mac_md.
• Added Provider.
• Added X509Ref::issuer_name_hash.
• Added Decrypter::set_rsa_oaep_label.
• Added X509Ref::to_text.

v0.10.38 - 2021-10-31

Added

• Added Pkey::ec_gen.

v0.10.37 - 2021-10-27

Fixed

• Fixed linkage against OpenSSL distributions built with no-chacha.

Added

• Added BigNumRef::to_vec_padded.
• Added X509Name::from_der and X509NameRef::to_der.
• Added BigNum::new_secure, BigNumReef::set_const_time, BigNumref::is_const_time, and BigNumRef::is_secure.

v0.10.36 - 2021-08-17

Added

• Added Asn1Object::as_slice.
• Added PKeyRef::{raw_public_key, raw_private_key, private_key_to_pkcs8_passphrase} and PKey::{private_key_from_raw_bytes, public_key_from_raw_bytes}.
• Added Cipher::{seed_cbc, seed_cfb128, seed_ecb, seed_ofb}.

v0.10.35 - 2021-06-18

Fixed

• Fixed a memory leak in Deriver.

Added

• Added support for OpenSSL 3.x.x.
• Added SslStream::peek.

v0.10.34 - 2021-04-28

Added

• Added Dh::set_private_key and DhRef::private_key.
• Added EcPointRef::affine_coordinates.
• Added TryFrom implementations to convert between PKey and specific key types.
• Added X509StoreBuilderRef::set_flags.

v0.10.33 - 2021-03-13

Fixed

• Dh::generate_params now uses DH_generate_params_ex rather than the deprecated DH_generated_params function.

Added

• Added Asn1Type.
• Added CmsContentInfoRef::decrypt_without_cert_check.
• Added EcPointRef::{is_infinity, is_on_curve}.
• Added Encrypter::set_rsa_oaep_label.
• Added MessageDigest::sm3.
• Added Pkcs7Ref::signers.
• Added Cipher::nid.
• Added X509Ref::authority_info and AccessDescription::{method, location}.
• Added X509NameBuilder::{append_entry_by_text_with_type, append_entry_by_nid_with_type}.

v0.10.32 - 2020-12-24

Fixed

• Fixed Ssl::new to take a &SslContextRef rather than &SslContext.

Added

• Added the encrypt module to support asymmetric encryption and decryption with PKeys.
• Added MessageDigest::from_name.
• Added ConnectConfiguration::into_ssl.
• Added the ability to create unconnected SslStreams directly from an Ssl and transport stream without performing any part of the handshake with SslStream::new.
• Added SslStream::{read_early_data, write_early_data, connect, accept, do_handshake, stateless}.
• Implemented ToOwned for SslContextRef.
• Added SslRef::{set_connect_state, set_accept_state}.

Deprecated

• Deprecated SslStream::from_raw_parts in favor of Ssl::from_ptr and SslStream::new.
• Deprecated SslStreamBuilder in favor of methods on Ssl and SslStream.

v0.10.31 - 2020-12-09

Added

• Added Asn1Object::from_str.
• Added Dh::from_pgq, DhRef::prime_p, DhRef::prime_q, DhRef::generator, DhRef::generate_params, DhRef::generate_key, DhRef::public_key, and DhRef::compute_key.
• Added Pkcs7::from_der and Pkcs7Ref::to_der.
• Added Id::X25519, Id::X448, PKey::generate_x25519, and PKey::generate_x448.
• Added SrtpProfileId::SRTP_AEAD_AES_128_GCM and SrtpProfileId::SRTP_AEAD_AES_256_GCM.
• Added SslContextBuilder::verify_param and SslContextBuilder::verify_param_mut.
• Added X509Ref::subject_name_hash and X509Ref::version.
• Added X509StoreBuilderRef::add_lookup, and the X509Lookup type.
• Added X509VerifyFlags, X509VerifyParamRef::set_flags, X509VerifyParamRef::clear_flags X509VerifyParamRef::get_flags.

v0.10.30 - 2020-06-25

Fixed

• DsaRef::private_key_to_pem can no longer be called without a private key.

Changed

• Improved the Debug implementations of many types.

Added

• Added is_empty implementations for Asn1StringRef and Asn1BitStringRef.
• Added EcPointRef::{to_pem, to_dir} and EcKeyRef::{public_key_from_pem, public_key_from_der}.
• Added Default implementations for many types.
• Added Debug implementations for many types.
• Added SslStream::from_raw_parts.
• Added SslRef::set_mtu.
• Added Cipher::{aes_128_ocb, aes_192_ocb, aes_256_ocb}.

Deprecated

• Deprecated SslStreamBuilder::set_dtls_mtu_size in favor of SslRef::set_mtu.

v0.10.29 - 2020-04-07

Fixed

• Fixed a memory leak in X509Builder::append_extension.

Added

• Added SslConnector::into_context and SslConnector::context.
• Added SslAcceptor::into_context and SslAcceptor::context.
• Added SslMethod::tls_client and SslMethod::tls_server.
• Added SslContextBuilder::set_cert_store.
• Added SslContextRef::verify_mode and SslRef::verify_mode.
• Added SslRef::is_init_finished.
• Added X509Object.
• Added X509StoreRef::objects.

v0.10.28 - 2020-02-04

Fixed

• Fixed the mutability of Signer::sign_oneshot and Verifier::verify_oneshot. This is unfortunately a breaking change, but a necessary soundness fix.

v0.10.27 - 2020-01-29

Added

• Added MessageDigest::null.
• Added PKey::private_key_from_pkcs8.
• Added SslOptions::NO_RENEGOTIATION.
• Added SslStreamBuilder::set_dtls_mtu_size.

v0.10.26 - 2019-11-22

Fixed

• Fixed improper handling of the IV buffer in envelope::{Seal, Unseal}.

Added

• Added Asn1TimeRef::{diff, compare}.
• Added Asn1Time::from_unix.
• Added PartialEq and PartialOrd implementations for Asn1Time and Asn1TimeRef.
• Added base64::{encode_block, decode_block}.
• Added EcGroupRef::order_bits.
• Added Clone implementations for Sha1, Sha224, Sha256, Sha384, and Sha512.
• Added SslContextBuilder::{set_sigalgs_list, set_groups_list}.

v0.10.25 - 2019-10-02

Fixed

• Fixed a memory leak in EcdsaSig::from_private_components when using OpenSSL 1.0.x.

Added

• Added support for Ed25519 and Ed448 keys.
• Implemented ToOwned for PKeyRef and Clone for PKey.

v0.10.24 - 2019-07-19

Fixed

• Worked around an OpenSSL 1.0.x bug triggered by code calling SSL_set_app_data.

Added

• Added aes::{wrap_key, unwrap_key}.
• Added CmsContentInfoRef::to_pem and CmsContentInfo::from_pem.
• Added DsaRef::private_key_to_pem.
• Added EcGroupRef::{cofactor, generator}.
• Added EcPointRef::to_owned.
• Added a Debug implementation for EcKey.
• Added SslAcceptor::{mozilla_intermediate_v5, mozilla_modern_v5}.
• Added Cipher::{aes_128_ofb, aes_192_ecb, aes_192_cbc, aes_192_ctr, aes_192_cfb1, aes_192_cfb128, aes_192_cfb8, aes_192_gcm, aes_192_ccm, aes_192_ofb, aes_256_ofb}.

v0.10.23 - 2019-05-18

Fixed

• Fixed session callbacks when an Ssl's context is replaced.

Added

• Added SslContextBuilder::add_client_ca.

v0.10.22 - 2019-05-08

Added

• Added support for the LibreSSL 2.9.x series.

v0.10.21 - 2019-04-30

Fixed

• Fixed overly conservatifve buffer size checks in Crypter when using stream ciphers.

Added

• Added bindings to envelope encryption APIs.
• Added PkeyRef::size.

v0.10.20 - 2019-03-20

Added

• Added CmsContentInfo::from_der and CmsContentInfo::encrypt.
• Added X509Ref::verify and X509ReqRef::verify.
• Implemented PartialEq and Eq for MessageDigest.
• Added MessageDigest::type_ and EcGroupRef::curve_name.

v0.10.19 - 2019-03-01

Added

• The openssl-sys build script now logs the values of environment variables.
• Added ERR_PACK to openssl-sys.
• The ERR_* functions in openssl-sys are const functions when building against newer Rust versions.
• Implemented Clone for Dsa.
• Added SslContextRef::add_session and SslContextRef::remove_session.
• Added SslSessionRef::time, SslSessionRef::timeout, and SslSessionRef::protocol_version.
• Added SslContextBuilder::set_session_cache_size and SslContextRef::session_cache_size.

v0.10.18 - 2019-02-22

Fixed

• Fixed the return type of ssl::cipher_name.

v0.10.17 - 2019-02-22

Added

• Implemented AsRef<str> and AsRef<[u8]> for OpenSslString.
• Added Asn1Integer::from_bn.
• Added RsaRef::check_key.
• Added Asn1Time::from_str and Asn1Time::from_str_x509.
• Added Rsa::generate_with_e.
• Added Cipher::des_ede3_cfb64.
• Added SslCipherRef::standard_name and ssl::cipher_name.

v0.10.16 - 2018-12-16

Added

• Added SHA3 and SHAKE to MessageDigest.
• Added rand::keep_random_devices_open.
• Added support for LibreSSL 2.9.0.

v0.10.15 - 2018-10-22

Added

• Implemented DoubleEndedIterator for stack iterators.

v0.10.14 - 2018-10-18

Fixed

• Made some accidentally exposed internal functions private.

Added

• Added support for LibreSSL 2.8.

Changed

• The OpenSSL version used with the vendored feature has been upgraded from 1.1.0 to 1.1.1.

v0.10.13 - 2018-10-14

Fixed

• Fixed a double-free in the SslContextBuilder::set_get_session_callback API.

Added

• Added SslContextBuilder::set_client_hello_callback.
• Added support for LibreSSL 2.8.1.
• Added EcdsaSig::from_der and EcdsaSig::to_der.
• Added PKCS#7 support.

v0.10.12 - 2018-09-13

Fixed

• Fixed handling of SNI callbacks during renegotiation.

Added

• Added SslRef::get_shutdown and SslRef::set_shutdown.
• Added support for SRTP in DTLS sessions.
• Added support for LibreSSL 2.8.0.

v0.10.11 - 2018-08-04

Added

• The new vendored cargo feature will cause openssl-sys to compile and statically link to a vendored copy of OpenSSL.
• Added SslContextBuilder::set_psk_server_callback.
• Added DsaRef::pub_key and DsaRef::priv_key.
• Added Dsa::from_private_components and Dsa::from_public_components.
• Added X509NameRef::entries.

Deprecated

• SslContextBuilder::set_psk_callback has been renamed to SslContextBuilder::set_psk_client_callback and deprecated.

v0.10.10 - 2018-06-06

Added

• Added SslRef::set_alpn_protos.
• Added SslContextBuilder::set_ciphersuites.

v0.10.9 - 2018-06-01

Fixed

• Fixed a use-after-free in CmsContentInfo::sign.
• SslRef::servername now returns None rather than panicking on a non-UTF8 name.

Added

• Added MessageDigest::from_nid.
• Added Nid::signature_algorithms, Nid::long_name, and Nid::short_name.
• Added early data and early keying material export support for TLS 1.3.
• Added SslRef::verified_chain.
• Added SslRef::servername_raw which returns a &[u8] rather than &str.
• Added SslRef::finished and SslRef::peer_finished.
• Added X509Ref::digest to replace X509Ref::fingerprint.
• X509StoreBuilder and X509Store now implement Sync and Send.

Deprecated

• X509Ref::fingerprint has been deprecated in favor of X509Ref::digest.

v0.10.8 - 2018-05-20

Fixed

• openssl-sys will now detect Homebrew-installed OpenSSL when installed to a non-default directory.
• The X509_V_ERR_INVALID_CALL, X509_V_ERR_STORE_LOOKUP, and X509_V_ERR_PROXY_SUBJECT_NAME_VIOLATION constants in openssl-sys are now only present when building against 1.1.0g and up rather than 1.1.0.
• SslContextBuilder::max_proto_version and SslContextBuilder::min_proto_version are only present when building against 1.1.0g and up rather than 1.1.0.

Added

• Added CmsContentInfo::sign.
• Added Clone and ToOwned implementations to Rsa and RsaRef respectively.
• The min_proto_version and max_proto_version methods are available when linking against LibreSSL 2.6.1 and up in addition to OpenSSL.
• X509VerifyParam is available when linking against LibreSSL 2.6.1 and up in addition to OpenSSL.
• ALPN support is available when linking against LibreSSL 2.6.1 and up in addition to OpenSSL.
• Stack and StackRef are now Sync and Send.

v0.10.7 - 2018-04-30

Added

• Added X509Req::public_key and X509Req::extensions.
• Added RsaPrivateKeyBuilder to allow control over initialization of optional components of an RSA private key.
• Added DER encode/decode support to SslSession.
• openssl-sys now provides the DEP_OPENSSL_VERSION_NUMBER and DEP_OPENSSL_LIBRESSL_VERSION_NUMBER environment variables to downstream build scripts which contains the hex-encoded version number of the OpenSSL or LibreSSL distribution being built against. The other variables are deprecated.

v0.10.6 - 2018-03-05

Added

• Added SslOptions::ENABLE_MIDDLEBOX_COMPAT.
• Added more Sync and Send implementations.
• Added PKeyRef::id.
• Added Padding::PKCS1_PSS.
• Added Signer::set_rsa_pss_saltlen, Signer::set_rsa_mgf1_md, Signer::set_rsa_pss_saltlen, and Signer::set_rsa_mgf1_md
• Added X509StoreContextRef::verify to directly verify certificates.
• Added low level ECDSA support.
• Added support for TLSv1.3 custom extensions. (OpenSSL 1.1.1 only)
• Added AES-CCM support.
• Added EcKey::from_private_components.
• Added CMAC support.
• Added support for LibreSSL 2.7.
• Added X509Ref::serial_number.
• Added Asn1IntegerRef::to_bn.
• Added support for TLSv1.3 stateless handshakes. (OpenSSL 1.1.1 only)

Changed

• The Cargo features previously used to gate access to version-specific OpenSSL APIs have been removed. Those APIs will be available automatically when building against an appropriate OpenSSL version.
• Fixed PKey::private_key_from_der to return a PKey<Private> rather than a PKey<Public>. This is technically a breaking change but the function was pretty useless previously.

Deprecated

• X509CheckFlags::FLAG_NO_WILDCARDS has been renamed to X509CheckFlags::NO_WILDCARDS and the old name deprecated.

v0.10.5 - 2018-02-28

Fixed

• ErrorStack's Display implementation no longer writes an empty string if it contains no errors.

Added

• Added SslRef::version2.
• Added Cipher::des_ede3_cbc.
• Added SslRef::export_keying_material.
• Added the ability to push an Error or ErrorStack back onto OpenSSL's error stack. Various callback bindings use this to propagate errors properly.
• Added SslContextBuilder::set_cookie_generate_cb and SslContextBuilder::set_cookie_verify_cb.
• Added SslContextBuilder::set_max_proto_version, SslContextBuilder::set_min_proto_version, SslContextBuilder::max_proto_version, and SslContextBuilder::min_proto_version.

Changed

• Updated SslConnector's default cipher list to match Python's.

Deprecated

• SslRef::version has been deprecated. Use SslRef::version_str instead.

v0.10.4 - 2018-02-18

Added

• Added OpenSSL 1.1.1 support.
• Added Rsa::public_key_from_pem_pkcs1.
• Added SslOptions::NO_TLSV1_3. (OpenSSL 1.1.1 only)
• Added SslVersion.
• Added SslSessionCacheMode and SslContextBuilder::set_session_cache_mode.
• Added SslContextBuilder::set_new_session_callback, SslContextBuilder::set_remove_session_callback, and SslContextBuilder::set_get_session_callback.
• Added SslContextBuilder::set_keylog_callback. (OpenSSL 1.1.1 only)
• Added SslRef::client_random and SslRef::server_random. (OpenSSL 1.1.0+ only)

Fixed

• The SslAcceptorBuilder::mozilla_modern constructor now disables TLSv1.0 and TLSv1.1 in accordance with Mozilla's recommendations.

v0.10.3 - 2018-02-12

Added

• OpenSSL is now automatically detected on FreeBSD systems.
• Added GeneralName accessors for rfc822Name and uri variants.
• Added DES-EDE3 support.

Fixed

• Fixed a memory leak in X509StoreBuilder::add_cert.

v0.10.2 - 2018-01-11

Added

• Added ConnectConfiguration::set_use_server_name_indication and ConnectConfiguration::set_verify_hostname for use in contexts where you don't have ownership of the ConnectConfiguration.

v0.10.1 - 2018-01-10

Added

• Added a From<ErrorStack> for ssl::Error implementation.

v0.10.0 - 2018-01-10

Compatibility

• openssl 0.10 still uses openssl-sys 0.9, so openssl 0.9 and 0.10 can coexist without issue.

Added

• The ssl::select_next_proto function can be used to easily implement the ALPN selection callback in a "standard" way.
• FIPS mode support is available in the fips module.
• Accessors for the Issuer and Issuer Alternative Name fields of X509 certificates have been added.
• The X509VerifyResult can now be set in the certificate verification callback via X509StoreContextRef::set_error.

Changed

• All constants have been moved to associated constants of their type. For example, bn::MSB_ONE is now bn::MsbOption::ONE.

• Asymmetric key types are now parameterized over what they contain. In OpenSSL, the same type is used for key parameters, public keys, and private keys. Unfortunately, some APIs simply assume that certain components are present and will segfault trying to use things that aren't there.

  The pkey module contains new tag types named Params, Public, and Private, and the Dh, Dsa, EcKey, Rsa, and PKey have a type parameter set to one of those values. This allows the Signer constructor to indicate that it requires a private key at compile time for example. Previously, Signer would simply segfault if provided a key without private components.

• ALPN support has been changed to more directly model OpenSSL's own APIs. Instead of a single method used for both the server and client sides which performed everything automatically, the SslContextBuilder::set_alpn_protos and SslContextBuilder::set_alpn_select_callback handle the client and server sides respectively.

• SslConnector::danger_connect_without_providing_domain_for_certificate_verification_and_server_name_indication has been removed in favor of new methods which provide more control. The ConnectConfiguration::use_server_name_indication method controls the use of Server Name Indication (SNI), and the ConnectConfiguration::verify_hostname method controls the use of hostname verification. These can be controlled independently, and if both are disabled, the domain argument to ConnectConfiguration::connect is ignored.

• Shared secret derivation is now handled by the new derive::Deriver type rather than pkey::PKeyContext, which has been removed.

• ssl::Error is now no longer an enum, and provides more direct access to the relevant state.

• SslConnectorBuilder::new has been moved and renamed to SslConnector::builder.

• SslAcceptorBuilder::mozilla_intermediate and SslAcceptorBuilder::mozilla_modern have been moved to SslAcceptor and no longer take the private key and certificate chain. Install those manually after creating the builder.

• X509VerifyError is now X509VerifyResult and can now have the "ok" value in addition to error values.

• x509::X509FileType is now ssl::SslFiletype.

• Asymmetric key serialization and deserialization methods now document the formats that they correspond to, and some have been renamed to better indicate that.

Removed

• All deprecated APIs have been removed.
• NPN support has been removed. It has been supersceded by ALPN, and is hopefully no longer being used in practice. If you still depend on it, please file an issue!
• SslRef::compression has been removed.
• Some ssl::SslOptions flags have been removed as they no longer do anything.

Older

Look at the release tags for information about older releases.