SSH: Added support for PuTTY PPK3 format to SshPrivateKey - the SshPrivateKeyclass, PrivateKeyInfo classes and the Certificate.SavePrivateKey method now support PuTTY's new PPK version 3 private key format.
SSH: Added support for 'x509v3-rsa2048-sha256' SSH host key and client key algorithm (X.509 certificate with RSA key, as specified by RFC 6187).
SSH: Added a workaround for a server with broken SSH window size handling logic.
TLS Core: Improved TLS 1.3 performance. Optimized TLS 1.3 core, which increased speed and decreased CPU usage.
Cryptography: Added more values to X.509 RevocationReason enum.
Cryptography: Added support for private keys in PuTTY PPK3 format (uses Argon2 key derivation function).
Cryptography: Added workaround for Google's CRLs with non-constructed explicit ASN.1 nodes.
Improved Deflate compression performance: Deflate compression performance has been improved (mostly on modern platforms). This improves the performance of SSH layer (when compression is enabled) and FTP (with 'MODE Z' enabled).