Recent Version History

• Local file manager mode (two local panels). 1893
• Ongoing delete operation can be moved to background queue. 194
• Showing directory size in file panel. 41
• Tab titles are shortened to fit window width as needed. 1423
• Tabs show tooltips with full session name and paths.
• Remembering remote directory tree nodes state when switching sessions. 1057
• Shift-clicking New Session command opens the Login dialog in new WinSCP instance, instead of possibly opening new instance of workspace.
• When switching tabs, prevent visibly scrolling the panels when focusing the last selected file.
• Removed the “compression” indicator from the status bar.
• Allowed normal behavior of double-click on a file even when resolving of symlinks is disabled. 2037
• Session.ExecutablePath returns detected or actual executable path when not set. 2055
• Change: Keyboard shortcut for Command Line command changed to Shift+Ctrl+M (Shift+Ctrl+N previously).

• Translation updated: German.
• SSH core upgraded to pre-release build of PuTTY 0.77.
  It brings the following changes:
  • Support for HTTP Digest authentication for proxies. http-digestauth
  • Interactive username/password prompts for proxy authentication. proxy-password-prompt
• WebDAV core upgraded to neon 0.32.2.
• XML parser upgraded to Expat 2.4.6.
• Allowed uploading edited files over encrypted session. 1989
• Building .NET assembly in Visual Studio 2019.
• Bug fix: Failure when attempting to switch to an unconnected sessions using keyboard shortcuts while another session is being connected.
• Bug fix: Removing all custom commands resets the default ones when INI file is used. 2059
• Bug fix: Failure when changing remote folder using directory tree while previous directory is still loading. 2060
• Bug fix: Drive that was ever opened in local file panel cannot be safely removed until WinSCP is closed. 2061
• Bug fix: “Optimize connection buffer size” checkbox was disabled for S3 although it has effect for the protocol. 2058
• Bug fix: Custom commands menu fail to open. 2062

• File masks relative to the root of an operation. 2052
• Private key can be provided as string in .NET assembly and scripting. 2044
• Support for importing key files that are specified using home ~ prefix from OpenSSH config file. 2053
• Translation updated: German.
• TLS/SSL core upgraded to OpenSSL 1.1.1m.
• Commands that do not fit on Custom Commands toolbar are presented in drop down menu, instead of a horizontal bar. 554
• First hiding right-most Custom Commands toolbar commands that do not fit.
• Prevent hang when dragging files without drag&drop shell extensions when some mapped network drive is not available. 2054
• Added new ap-southeast-3 AWS region.
• XML parser upgraded to Expat 2.4.2.
• Bug fix: When initial remote directory specified in the open command does not exist, the error was silently ignored.
• Bug fix: File color rules with path mask do not work for local files.

• Support for ACL for S3 protocol. 1641
• SSH core upgraded to PuTTY 0.76. 1984
  It brings the following changes:
  • Support Curve448 key exchange method. curve448
  • Support Ed448 user and host keys. ed448
  • Support rsa-sha2-256 and rsa-sha2-512 SSH public key algorithms. 1952 rsa-sha2
  • Change: SHA-256 fingerprints are not padded anymore.
• It is possible to import sessions from OpenSSH config file. 1896
• Change: Removed support for SSH-1.
• Optionally keeping symbolic link name in path instead of resolving it with SFTP protocol. 81
• Improved shortening long paths, when single level name is too long on its own. 2043
• WebDAV core upgraded to neon 0.32.1.
• Allow displaying all VMS file revisions with FTP protocol. 1944
• Support reading S3 credentials from AWS CLI configuration. 1941
• Bytes transferred are recorded in XML log and available in .NET assembly API. 597
• Generating PPK3 keys.
• It is possible to copy information to the clipboard from the Properties dialog.
• Made WinSCP.exe be deployed even when WinSCP NuGet package is included as transitive dependency. 2017
• When performing a single-item atomic operation, displaying indeterminate progress status.
• S3 Security token session option renamed to a more appropriate Session Token.
• Not resetting protocol to WebDAV when S3 protocol is selected and HTTP URL is pasted on the Login dialog. 2045
• Automatically reconnect when FTP server fails to open data connection, if it previously worked. 2046
• Confirm closing when multiple tabs are opened and auto workspace saving is not enabled, even when none of the tabs contain an active remote session.
• Including host key of tunnel session in generated code. 2006
• Support for custom certificate store files with configurable path. 2034
• Allowed providing tunnel private key passphrase in scripting. 2029
• Improved handling of long shell command error messages. 1949
• Considering global passive/active mode settings when importing sessions from FileZilla
• Automatically retry when S3 transfer fails with 503 code (Slow down or Service unavailable). 2047
• Improving formatting of errors displayed after an operation completed in Continue on error mode.
• Shift+Ctrl+R keyboard shortcut for Reconnect Session command.
• Change: Keyboard shortcut for Restore Selection command changed to Shift+Ctrl+S (Shift+Ctrl+R previously).
• Change: Monitoring A: and B: drives. 2014
• Preventing beep when using Alt+Enter to open the Properties dialog.
• When collecting list of files for background transfer, say “Listing” instead of “Calculating” not to give an impression that it is a superfluous operation. 2026
• Checking for too many parameters with /keygen switch.
• PNG code upgraded to PngComponents 1.7.0.
• Warning when selecting too new key file.
• Warning when opening more than 100 tabs. 1997
• Including HTTP message into S3 error message.
• Bug fix: Do not say “Terminated by user” when the session has actually timed out.
• Bug fix: Cannot use passwords and passphrases longer than 255 characters in automation and various other purposes. 1988
• Bug fix: When size of a file downloaded with FTP protocol changes (or when ASCII mode is used) the logged size did not reflect the actual transfer size.
• Bug fix: When connecting disconnected session the directory might be loaded twice.
• Bug fix: Failure when entering directory that contains file with a slash in its name. 2016
• Bug fix: When S3 authentication region changes during session, previously visited buckets from the original authentication region could not be accessed anymore. 2027
• Bug fix: Failure when using multiple connections with local proxy command. 2028
• Bug fix: Configuration import did not remove old sites and did not load all GUI settings. 2040
• Bug fix: When S3 transfer fatally fails, error details were lost.

• Translation updated: German.
• Back-propagated fixes from 5.20–5.20.2 releases:
  • TLS/SSL core upgraded to OpenSSL 1.1.1m.
  • XML parser upgraded to Expat 2.4.6.

• Compatibility with Google Cloud S3 API when duplicating files. 2038
• Compatibility with Google Cloud S3 API when deleting implicitly existing directories. 2042
• Translation updated: Turkish.
• Logging a reference to 1952 when an OpenSSH 8.8 (or newer) server refuses the key.
• Bug fix: Crash when new contents is copied to the clipboard while downloading files pasted from the clipboard. 2036
• Bug fix: Browse Remote Directory command on Synchronization checklist did not locate file with spaces.
• Bug fix: Extension ZIP and Upload does not work with files in a drive root. 2039
• Bug fix: Path on Console window was not shortened when it did not fit.

• Translation updated: Hungarian.
• Showing release date on the About dialog.
• Support for custom certificate store files. 2034
• Allow other 2xx responses to PWD command, not only the standard 257. 1768
• Bug fix: When there are both site folder and site with the same name and the site was selected when closing the Login dialog, when reopening, the folder was selected instead.

• Translation updated: French.
• TLS/SSL core upgraded to OpenSSL 1.1.1l.
• Using Documents folder when the last used local directory in Explorer interface does not exist anymore. 2011
• Bug fix: TLS session resumption is not working for subsequent FTP transfers with TLS 1.3 when the server requires reuse of the session of the previous transfer. 2018
• Bug fix: Cannot access S3 bucket root when the access policy checks for empty prefix. 2021
• Bug fix: Response from ProFTPD FTP checksum commands is not recognized. 2023
• Bug fix: Failure when submitting prompt with “Never ask me again” selected. 2022
• Bug fix: Panels are drawn incorrectly after toggling Full row select. 2025
• Bug fix: Timeout while uploading files to some FTP servers using TLS 1.3. 2030
• Bug fix: Incomplete listing for S3 servers that indicate truncated listing after the contents and whose pagination is a multiple of 8 (e.g. Backblaze). 2032

• Translation completed: French.
• Restored compatibility with FTP servers that return malformed cdir and pdir entries in directory listing. 2004
• Fix from PuTTY 0.76: Avoid crash in MIT Kerberos for Windows on session restart.
• SSH private key tools (PuTTYgen and Pageant) upgraded to PuTTY 0.76. It brings the following change: After 30 or so simultaneous sessions, Pageant stops working. win-pageant-max-connections
• Bug fix: Empty local drive could not be entered. 2000
• Bug fix: TLS settings in default site settings is not restored when opening Login dialog in some cases. 2001
• Bug fix: Memory leak when deleting completed background transfers.
• Bug fix: Hang when running under Task Scheduler or a similar service with session logging enabled. 2005

• Translation updated: Italian.
• Incrementing port numbers for secondary connections of tunneled sessions with fixed forwarding port number. 1996
• Bug fix: Failure when automatically opening a workspace on startup with too many sessions. 1997
• Bug fix: Failure when reading a key file without a trailing newline. 1998
• Bug fix: Failure when SFTP server resolves . path to an empty string. 1999

• When installing an extension from a URL, not saving the extension with BOM.
• Not aborting “Keep remote directory up to date” function when connection is lost while deleting files or looking for differences and the session is reconnected. 1994
• Bug fix: When handling URL in an existing WinSCP instance, session settings from a stored site named after the URL hostname are not used. 1992
• Bug fix: It was possible to move toolbar on progress windows.
• Bug fix: When installing an extension from a file, it is always saved in UTF-8 with BOM, disregarding the original encoding. 1993
• Bug fix: When “Keep remote directory up to date” function was started from command-line, disconnects were not detected.
• Bug fix: When connection was lost and not reconnected, the “Keep remote directory up to date” window was not closed.

• XML parser upgraded to Expat 2.4.1.
• Installer upgraded to Inno Setup 6.2.0.
• Using multipart uploads with S3 protocol on Google Cloud as it is supported there now.
• Bug fix: Broken layout of Properties dialog when opening on a secondary display with high DPI primary display. 1990
• Bug fix: The “Drag & drop shell extension” installation component was not showing its size.
• Bug fix: When saving a local file, the “Saving” status on the Internal editor status bar is never cleared.
• Bug fix: No error message is sometimes shown when SFTP server disconnects. 1991

• Translation updated: Farsi.
• Support for PPK version 3 keys from PuTTY 0.75. 1986 ppk3
• SSH private key tools (PuTTYgen and Pageant) upgraded to PuTTY 0.75. It brings the following changes:
  • Pageant now supports loading a key still encrypted, and decrypting it later by prompting for the passphrase on first use. pageant-deferred-decrypt
  • Upgraded default SSH key fingerprint format to OpenSSH-style SHA-256.ssh-fingerprint-formats
  • PuTTYgen now supports alternative provable-prime generation algorithm for RSA and DSA.
  • Replaces Windows Pageant’s IPC with named pipes. pageant-named-pipe
  • Bug fix: PuTTYgen mis-writes OpenSSH private key format for some Ed25519 keys. openssh-ed25519-corrupt-private-key
• Bug fix: Moving a transfer to background just in between two individual file transfers cancels the transfer. 1983
• Bug fix: Files saved in external editors are not uploaded in timezones behind UTC. 1985
• Bug fix: Sort > By Type icon for was still incorrect.

• TLS/SSL core upgraded to OpenSSL 1.1.1k.
• XML parser upgraded to Expat 2.3.0.
• The enumerable returned by Session.EnumerateRemoteFiles implements the interface implicitly to allow access to the interface method (GetEnumerator) from late-bound languages, like PowerShell.
• Disabling multipart uploads with S3 protocol on Google Cloud they are not supported there. 1972
• Allow downloading a file from an FTP server via a symbolic link in scripting or when handling a URL. 1973
• Allowing use of the stream returned by Session.GetFile from a different thread. 1978
• Workaround for specific encoding of special characters in filenames by OneDrive WebDAV interface. 1824
• https:// URL with known S3 API hostname (s3.amazonaws.com, digitaloceanspaces.com, storage.googleapis.com) is interpreted as S3 protocol, instead of WebDAV.
• Automatically resume transfer when TLS re-key fails. 1982
• Translation updated: German.
• Bug fix: Ignoring disconnect messages from the server while closing the connection. 1977
• Bug fix: Preventing another application (or WinSCP instance) stealing the selected tunnel port. 1971
• Bug fix: Hang after receiving multiline response from FTP server. 1963
• Bug fix: Sort > By Type icon for was incorrect.
• Bug fix: Keyboard cues were shown in toolbar buttons drop down menus even when the menu was dropped down with mouse.
• Bug fix: Failure when connecting to FTPS server that supports client certificates with translation that uses multi byte encoding. 1966
• Bug fix: Remembered password is forgotten after the first failed (re)connect, even if the failure did not involve the password. 1967
• Bug fix: Problems with port forwarding are not detected. 1970
• Bug fix: Potential failure when waiting for a command executed from Console window is aborted.
• Bug fix: When saving a site with a slash in the username, it is misinterpreted as a site folder.
• Bug fix: DST start or end causes edited/opened files to be uploaded. 1974
• Bug fix: Failure when retrieving a directory listing from an FTP server when the data are transmitted in huge amount of tiny chunks. 1976
• Bug fix: Some operations with relative paths (notably creating and deleting a subdirectory) were failing on encrypted session.
• Bug fix: Local > Go to > Explore Directory was not working with focused remote panel.
• Bug fix: A workspace session opened from a stored site could not be used for operation in a new window or duplicated.
• Bug fix: Error when uploading an empty folder in the foreground or any folder in the background to an FTP server with permissions configured.
• Bug fix: Adding new background transfer while queue processing is disabled and some parallelized transfer was already started results in “waiting” items being endlessly added to the queue list.

• Translations completed: Korean and Romanian.
• TLS/SSL core upgraded to OpenSSL 1.1.1j.
• When opening or switching to a session whose local directory does not exist, open the nearest existing parent directory. 1951
• Switch-like raw session settings can be configured using on/off/auto keywords.
• Improving validation of port numbers in scripting and .NET assembly.
• Bug fix: Parsing of multiline VMS FTP listing entries is broken. 1950
• Bug fix: When moving files to an unvisited folder in an encrypted session, the folder contents is cached as before the move.
• Bug fix: Failure when dropping files to a disconnected tab or duplicating to a disconnected session.
• Bug fix: Failure when duplicating a not-yet-connected session.
• Bug fix: Canceled or failed FTP transfer caused connection loss.
• Bug fix: Some errors and information while opening a session in scripting were not logged. 1956
• Bug fix: SFTP uploads are slow. 1957
• Bug fix: Failure when S3 bucket contains a subfolder with an empty name. 1958
• Bug fix: Cannot enter an S3 folder that only contains a subfolder with an empty name. 1959
• Bug fix: Error when moving or copying file with non-ASCII file name using S3 protocol. 1960
• Bug fix: Timezone is not correctly reflected in S3 timestamps.

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