Released: Jun 25, 2026
Updates in 8.0.9673
Features
- ML-KEM support in TLS - Rebex TLS library adds support for post-quantum ML-KEM key encapsulation algorithm, as part of the following hybrid key agreement ciphers: X25519MLKEM768, SecP256r1MLKEM768, SecP384r1MLKEM102. ML-KEM is supported out-of-box on PQC-enabled Windows with .NET 3.5 or higher. On other platforms, a PQC plugin is needed.
- ML-DSA support in TLS - Rebex TLS library also adds support for post-quantum ML-DSA signature algorithm. This is currently 'experimental', because the...
Released: Jun 1, 2026
Updates in 7.0.9649
Features
- Cryptography: Added workaround for uncommon RSA keys with very long exponents.
- Cryptography: Now checks public key during any Diffie-Hellman key exchange.
- Cryptography: Improved compatibility with Windows CNG keys.
- Cryptography: Improved private key handling in CNG interop.
- Cryptography: Now uses constant-time-compares where appropriate.
- SSH: Improved compatibility of 'SSH2 PUBLIC KEY' file loader.
- SSH: Now clears raw SSH_MSG_USERAUTH_REQUEST contents as soon as encrypted.
- SSH: Now...
Released: Mar 5, 2026
Updates in 7.0.9561
Fixes
- MIME: Fixed ArgumentOutOfRangeException in MimeEntity.SetContent for empty bodies with BOM.
- SSH: Fixed receive buffer space adjustment logic (client side).
Released: Nov 12, 2025
Updates in 7.0.9448
Features
- Support for .NET 10 - This release adds a new set of binaries targeting .NET 10. It supports the following platforms:
- Windows (x64, x86, ARM64).
- Linux (x64, ARM32, ARM64).
- Android (x64, ARM32, ARM64).
- macOS (ARM64, x64).
- iOS/iPadOS/tvOS (ARM64).
- Support for Visual Studio 2026
- All Rebex libraries are now fully supported in Microsoft Visual Studio 2026.
- Common: Improved work with internal shared array pool.
Fixes
- SSH: Fixed error type and message on invalid packet length in EtM cipher...
Released: Sep 16, 2025
Updates in 7.0.9391
Fixes
- All: Various documentation improvements.
- POP3: Pop3.Disconnect method throws exception if unable to delete messages marked for deletion.
Released: Jun 30, 2025
Updates in 7.0.9313
Features
- Mail: Added IgnoreRedundantAsn1Data option to MailSettings/MimeOptions.
- Cryptography: Added IgnoreRedundantData option to SignedData and EnvelopedData classes.
Fixes
- Networking: Prevented internal NullReferenceException when socket is closed and IO operation is in progress.
- TLS Core: Fixed obfuscated type names in debug logs.
- TLS Core: Fixed rare race condition between TLS 1.3 IO operations and shutdown/dispose logic.
- Cryptography: Fixed NullReferenceException instead of...
Released: Mar 18, 2025
Updates in 7.0.9209
Features
- Mail: Added workaround for "multipart/signed" entities misplaced as views.
- SSH: Added support for PKCS #1 public RSA key format to SshPublicKey.
- SSH: Added workaround for problem with Socket.Poll in .NET 6 on Linux.
Fixes
- MIME: Fixed behavior of MimeEntity.GetSignatureEntity() method.
- MIME: Fixed non-persistence of original headers of detached S/MIME signature entities.
Released: Jan 15, 2025
Updates in 7.0.9147
Features
- Common: Improved internal APM->TAP bridge for Socket methods on old platforms.
Released: Dec 18, 2024
Updates in 7.0.9119
Features
- MIME: Added MailMessage.Settings.TreatAdditionalMixedTextPartsAsView option.
- TLS Core: Better exception handling when TLS 1.3 socket is disposed while negotiation is in progress.
Fixes
- SSH: Fixed reported error message when SSH channel is closed while a channel request is pending.
Released: Nov 12, 2024
Updates in 7.0.9083
Features
Support for Microsoft .NET 9 - This release adds a new set of binaries targeting .NET 9. They support all .NET 9 platforms:
- Microsoft Windows (x64, x86, ARM64).
- Linux (x64, ARM32, ARM64).
- Android (x64, ARM32, ARM64).
- Apple macOS (ARM64, x64).
- Apple iOS/iPadOS/tvOS (ARM64).
Fixes
- Cryptography: Added workaround for EnvelopedData with unpadded RSA EncryptedKey.
- Cryptography: Added workaround for parsing CMS ASN.1 with redundant zeros at the end.
- Cryptography: Fixed common name validation...
