New Features

• It is now possible to configure HTTP POST event handlers and HTTP authentication methods with multiple URLs which will act as a fallback. [#1788]
• You can now configure file transfers to ignore source files older than a certain time. [client-side] [#5081]
• SFTP and SCP protocols now support the hmac-sha2-512 MAC algorithm. [sftp][scp] [#5313-1]
• SFTP and SCP protocols now support diffie-hellman-group14-sha256, diffie-hellman-group15-sha512, diffie-hellman-group16-sha512, diffie-hellman-group18-sha512, and diffie-hellman-group18-sha512 key exchange algorithms as required by RFC-8268. [sftp][scp] [#5313]
• You can now configure a retention period for the archived files of a transfer. Older files from the archive folder will be automatically removed by SFTPPlus. [client-side] [#5314]
• The SFTPPlus globbing expressions now support defining multiple patterns in a logical disjunction expression OR using the vertical bar character |. [#5316]
• Remote SSH server's fingerprint can now also be defined as SHA1, SHA256, an SSH public key, or an X.509 SSL/TLS certificate. MD5 fingerprints are still supported. [client-side][sftp] [#5327-1]
• Alpine Linux 3.10 on X86_64 is now a supported platform. [#5282]
• The bundled OpenSSL libraries in Windows, Generic Linux, and OS X, were updated to version 1.1.1c. [#5286]

Defect Fixes

• The ignore_create_permissions configuration option will now also ignore setting attributes when a file is created. In previous versions, attributes were ignored only for folders. [server-side][sftp] [#1741]
• The HTTP CONNECT proxy now works with HTTP endpoints. In previous versions, it was only working with HTTPS endpoints. [#1788]
• Transfers with a WebDAV location as source no longer fail when the WebDAV server returns a "302 FOUND" response. The response is now ignored and considered a transient error. [client-side][webdav][sharepoint] [#5300], [#5309]
• File dispatcher event handler can now handle events with more than 2 associated paths. In previous versions, only the first and the last paths for an event were handled. [#5317-1]

Deprecations and Removals

• The ssh_server_fingerprint configuration option was replaced by a new ssh_server_identity option in new configurations. The ssh_server_fingerprint option is still accepted for backward compatibility with older configurations. [client-side][sftp] [#5327]
• Support for Alpine Linux 3.7 on X86_64 was removed. [#5282]
• Support for Ubuntu Linux 14.04 LTS on X86_64 was removed. Please try the generic Linux package if you still use this version of Ubuntu Linux. [#5312]

You can check the full release notes here.