Learn what's new across releases, with details of features, enhancements, and resolved issues.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Xceed SFTP for .NET 7.4 (Build 7.4.26322.84970)Jun 22, 2026
Features
Post-Quantum Key Exchange
The post-quantum key exchange mlkem768x25519-sha256 is now available when connecting to an SSH server. It is enabled by default and selected automatically through negotiation with the server, so no action or application code change is needed to benefit from it. The algorithm is a hybrid method that combines the quantum-resistant Module-Lattice-based Key-Encapsulation Mechanism (ML-KEM) with the traditional Curve25519 Elliptic-curve Diffie-Hellman scheme and SHA2-256.