TLS/SSL core upgraded to OpenSSL 1.1.1o.

Optimized loading of large directories.

Expanding environment variables in Open Directory/Location Profiles dialogs in local paths.

NET assembly method Session.TryGetFileInfo.

Improved compatibility with MVS systems.NET assembly and scripting for FTP protocol. Translations completed: Catalan, Czech, Dutch, Finnish, French, German, Hungarian, Italian, Japanese, Korean, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish and Ukrainian and updated: Vietnamese.Bug fix: Restored pre-5.20.3 behaviour with MVS systems.Bug fix: When transferring a growing file, after its original size is reached, the Session.FileTransferProgress event starts being triggered continuously.Workaround for specific encoding of commas in filenames (and particularly directory names) by OneDrive WebDAV interface.Workaround for an apparent bug in Windows 11 that prevents WinSCP from stopping Windows going to the sleep mode during transfers.Workaround for calls to system API failing when used first time against some network shares (Samba) with paths over the legacy Windows limit.Not listing remote directory when downloading file using FTP protocol with overwrite confirmations off.

Translations updated: German and Slovak.Improved error message when FTP server returns malformed response.

Bug fix: If Pageant is started multiple times simultaneously, the instances should reliably agree on one of them to be the persistent server.

Bug fix: Pageant can now handle large numbers of concurrent connections without hanging or crashing.

Bug fix: PuTTYgen’s mouse-based entropy collection now handles high-frequency mice without getting confused.

Pageant: Option -openssh-config to allow easy interoperation with Windows’s ssh.exe.

SSH core and SSH private key tools (PuTTYgen and Pageant) upgraded to PuTTY 0.77.

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