Recent Version History

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2023-12-01

This is a full list of changes for each release of WinSCP. See also Project history and Incompatible changes between versions.

Local file manager mode (two local panels). 1893
Ongoing delete operation can be moved to background queue. 194
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.
WebDAV core upgraded to neon 0.32.1.
Showing directory size in file panel. 41
Tab titles are shortened to fit window width as needed. 1423
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
Tabs show tooltips with full session name and paths.
Remembering remote directory tree nodes state when switching sessions. 1057
It is possible to import sessions from OpenSSH config file. 1896
Shift-clicking New Session command opens the Login dialog in new WinSCP instance, instead of possibly opening new instance of workspace.
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
Change: Removed support for SSH-1.
Generating PPK3 keys.
It is possible to copy information to the clipboard from the Properties dialog
When switching tabs, prevent visibly scrolling the panels when focusing the last selected file.
Removed the “compression” indicator from the status bar.
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.
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
Allowed normal behavior of double-click on a file even when resolving of symlinks is disabled. 2037
Improving formatting of errors displayed after an operation completed in Continue on error mode.
Ctrl+Shift+R keyboard shortcut for Reconnect Session command.
Change: Keyboard shortcut for Restore Selection command changed to Ctrl+Shift+S (Ctrl+Shift+R previously).
Change: Keyboard shortcut for Command Line command changed to Shift+Ctrl+M (Shift+Ctrl+N 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
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

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.
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.
Considering global passive/active mode settings when importing sessions from FileZilla
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.

Compatibility with Google Cloud Storage when using S3 protocol to access the buckets. 1939
Bug fix: Failure when closing with no tab. 1947
Bug fix: Debug information is printed at the end of the scripting session when debug logging level is set even if logging is turned off. 1948

Improved FTP support for VMS servers (and potentially for other non-Unix-like systems). 49
Translations completed: Brazilian Portuguese, Catalan, Czech, Dutch, Finnish, German, Hungarian, Italian, Japanese, Norwegian, Polish, Portuguese, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Ukrainian and Turkish.
TLS/SSL core upgraded to OpenSSL 1.1.1i.
Preserve file permissions when overwritten files are recycled and transfer resume is disabled. 1929
Keyboard-interactive authentication challenges can be copied to the clipboard and links contained in the challenges can be opened. 1930
Added method RemotePath.EscapeOperationMask to .NET assembly.
Added method ComparisonDifference.Reverse to .NET assembly.
Implemented method ComparisonDifference.ToString in .NET assembly.
Write, CanWrite, Length and Position methods and properties of the Stream returned by the Session.GetFile behave as expected for a read-only steam.
Allowed using SFTP servers that have problems with SSH_FXP_REALPATH requests. 1933
Bug fix: Target file name with escaped operation mask special symbols was incorrectly interpreted as an actual operation mask on some dialogs (upload, duplicate, etc), resulting in misplaced warnings
Bug fix: Local path argument of Session.PutFileToDirectory is incorrectly escaped. 1931
Bug fix: Path argument of Session.PutFile is incorrectly escaped.
Bug fix: Failure when using from single-file bundle. 1932
Bug fix: Session.GetFile can fail, if the server responds too quickly.
Bug fix: Failure when S3 bucket contains a folder with an empty name. 1934
Bug fix: When the active tab was disconnected, closing window with another active session did not require a confirmation.
Bug fix: Setting the logging level to -1 (Reduced) does not work in .NET assembly. 1936
Bug fix: Ellipses from German command names are not stripped from toolbar buttons.
Bug fix: Hang when the stream returned by Session.GetFile is closed before the download finished.
Bug fix: Failure when looking for PuTTY key tools and the PATH contain invalid paths. 1942
Bug fix: Prevent loading session settings that can lead to remote code execution from handled URLs. 1943
Bug fix: Hang when S3 server returns a truncated listing with folders only. 1946

A complete list of files that are part of a background transfer can be shown. 1785
Stream interface in .NET assembly. 1738
With SFTP protocol files can be streamed to stdout and from stdin in scripting.
Support SHA-256 fingerprints of TLS/SSL certificates. 1842
Extension Synchronize with another remote server.
When connecting to new SSH host, its host key can be automatically accepted in scripting and .NET assembly.
Optional case-sensitive synchronization. 71
Enabled TLS 1.3 by default.
XML parser upgraded to Expat 2.2.10.
SSH core upgraded to PuTTY 0.74. It brings the following change:
- Security fix: If an SSH server accepted an offer of a public key and then rejected the signature, WinSCP could access freed memory, if the key had come from an SSH agent. vuln-agent-keylist-used-after-free
Resume transfer when FTP data connection disconnects. 1878
Support for curve25519-sha256 KEX. 1865
Support for authentication using temporary credentials from AWS Security Token Service (STS). 1839
Support for SNI with FTP. 1895
Installer upgraded to Inno Setup 6.1.2.
- Change: Installer needs Windows 7 SP1/2008 R2 SP1.
Alternative way to provide credentials in scripting/command-line without URL-encoding. 1821
Compatibility with WebDAV servers that incorrectly encode file URL. 1876
Optimizing S3 connection buffers for speed. 1732
Edited/opened files from a disconnected session can now be attached to new session even if its username was entered only during authentication instead of directly on the Login dialog. 1890
Returning to Login dialog, when ad-hoc connection fails. 1909
Local ports for active FTP mode can be limited. 958
Allow explicit navigation to a hidden local folder by enabling showing of hidden files and folder, if not enabled yet. 1905
Added full Go To submenu to context menu of panel path label
Automatically restore external editor defaults when changing editor command from Notepad to 3rd party editor. 1872
Suppress errors when opened/edited files are locked. 1832
Support clearing GID/UID flag on directories with new versions of GNU coreutils. 1850
Added /nointeractiveinput to usage screen.
List encrypt-then-MAC algorithms in /info listing. 1917
Not using a transfer via temporary file for files that would exceed system length limit with the temporary extension. 1922
Automatically closing timed out Session. 1923
Logging IANA encryption algorithm names. 1886
Displaying, what directory is being read at the end of login to a server, in a tooltip. 1916
Use dark window title for the main window in the dark mode on Windows 10 2004. 1920
Clarified that WinSCP may crash in the warning message when trying to load too big file into the internal editor. 1847
Do not prevent WinSCP from working when jump list cannot be updated. 1857
Allow forcing use of LIST command to retrieve file information in scripting for FTP servers that has broken support for MDTM/SIZE commands. 1921
Duplicate and Rename commands work even for disconnected sessions.
IPv6 literals with scope or literals that are already escaped in square brackets are formatted standardly in session URL (instead of URL-encoding them).
Allowed longer input on Edit file input box. 1911
Added help link to Add extension box and making the box wider.
GSSAPI key exchange authentication can be turned on. 1863
When trying to open an inaccessible local directory, display an error message, instead of silently doing nothing.
Cleanup application data dialog labels cache cleanup checkbox label updated to reflect previously updated functionality.
Disabling tips controls until some tips are actually available.
Optionally disable moving using drag&drop. 1884
Main window follows Login dialog to another monitor, when switched using keyboard shortcuts Shift+Win+Left/Right. 1907
When path to an existing local directory is specified on the Download options dialog without an operation mask, a noop operation mask is implied.
Workaround for wrong description of Num * keyboard shortcut in menus with German keyboard. 1889
Files with the same name except for a letter case are sorted deterministically. 1894
Not offering pasting from clipboard on the file panels if the clipboard contains multi-line text.
Extending transfer dialog drop down menu size to 16 entries.
Bug fix: Local file panel ignored changes in latter case of files and folders. 1885
Bug fix: Local custom commands that need session but no remote files were not disabled when session was not connected.
Bug fix: Correct letter case variant of remote directory in directory tree was not always selected. 1891
Bug fix: With no connected session, shared bookmarks modifications are not preserved.
Bug fix: Using list header color appropriate for the actual light/dark column background color (list headers are not dark, unless system wide app dark mode is enabled).
Bug fix: Session.ParseUrl cannot accept fingerprint parameter for sessions over TLS. 1925
Bug fix: Custom command patterns !S/!E do not include fingerprint of TLS certificate.
Bug fix: Cannot work with filenames ending with space with FTP protocol. 1900
Bug fix: Canceling remote path drop down did not reset it back to the current path.
Bug fix: Folders in a drive root showed incorrect type name sometimes.
Bug fix: Customizing custom commands from Synchronization checklist window was not working. 1908
Bug fix: Whole local drive could have been scanned when trying to browse to non-existing or hidden folders.
Bug fix: Timed out status bar note was not added to history popup box, while a session is disconnected.
Bug fix: Duplicate command in remote file context menu operated over selected files instead of the focused file.
Bug fix: *nix shell special characters were unintentionally escaped in PuTTY/SSH terminal command patterns. 1906

Back-propagated security fixes from 5.18.1 release:
- TLS/SSL core upgraded to OpenSSL 1.1.1i.
- Bug fix: Prevent loading session settings that can lead to remote code execution from handled URLs. 1943

Translation updated: German.
Bug fix: Failure when using S3/AWS access ID or region longer than 32 characters. 1914
Bug fix: Failure when opening some menus while having long text of specific length copied to the Clipboard. 1915
Bug fix: Failure when directory contains a file with too long name. 1924

Older versions