Recent Version History

• Back-propagated improvements and fixes from 6.4.1 beta and 6.4.2 beta releases:
  • Compatibility with new OneDrive WebDAV interface. 2321
  • XML parser upgraded to Expat 2.6.3.
  • Added new ap-southeast-5 AWS region.
  • Bug fix: After delete operation is moved to background, some operations (notably editing) do not work anymore. 2319
  • Bug fix: Shift+Ctrl+P keyboard shortcut on Login dialog to open site in PuTTY without closing the dialog does not work. 2320
  • Bug fix: Hang when trying to open an inaccessible drive from drive drop down menu.
• Translations completed: Danish, and updated: Belarusian.

• TLS/SSL core upgraded to OpenSSL 3.2.3.
• XML parser upgraded to Expat 2.6.3.
• Better error message when server is using incompatible TLS protocol version. 2299
• Translations updated: Belarusian and Finnish.
• Bug fix: Incorrect “Credentials were not specified” error when authentication fails due to incorrect password with FTP protocol. 2302
• Bug fix: Stall when switching from S3 to other protocol on Login dialog on some networks. 2309

• TLS/SSL core upgraded to OpenSSL 3.2.2.
• Translations updated: Belarusian, Danish and Russian.
• Standalone executable installer can run over corrupted MSI installation. 2294
• Support for up-to 16KB WebDAV cookies. 2289
• Bug fix: Failure when trying to automate file synchronization by checksum on an SFTP server that does not support it natively. 2291
• Bug fix: Remote panel does not refresh after “ZIP and Upload”. 2292

• SSH core and SSH private key tools (PuTTYgen and Pageant) upgraded to PuTTY 0.81.
  It brings the following change:
  • Security fix for CVE-2024-31497: NIST P521/ecdsa-sha2-nistp521 signatures are no longer generated with biased values of k. The previous bias compromises private keys. 2285 vuln-p521-bias
• Translation updated: Belarusian.
• XML parser upgraded to Expat 2.6.2.
• Support for TortoiseMerge in Compare Files extension. 2279
• Bug fix: File panel does not have focus after Login in Explorer interface. 2276
• Bug fix: Failure when closing the last remote tab. 2283
• Bug fix: Copy and paste to another application in Store installation sometimes does not work. 2284

• Translation updated: Belarusian.
• XML parser upgraded to Expat 2.6.1.
• Optimized startup when right panel local directory tree is not visible.
• Workaround for SFTP servers (Cisco) which omit message field from status response. 2272
• Bug fix: Password pipe cannot be used to open a session in an existing instance. 2265
• Bug fix: Hang when canceling connection while reading remote directory. 2266
• Bug fix: Failure when canceling FTP connection while reading remote directory. 2267
• Bug fix: Cannot start on Windows XP. 2268
• Bug fix: Installation hangs when adding installation path to search path when executed in session 0. 2270
• Bug fix: Misplaced stored site use warning in scripting when session name is specified. 2271
• Bug fix: Correcting neon version in About box and logs.

• Translation completed: Norwegian.
• Bug fix: Badly encoded SFTP packet when renaming a file using SFTP version 5 and newer. 2259
• Bug fix: Failure when trying to synchronize files by checksum on server that does not support it. 2260
• Bug fix: Random hang/failure when closing FTP TLS 1.3 connection. 2261
• Bug fix: Cannot use IPv6 literal as hostname on Login dialog. 2263

• XML parser upgraded to Expat 2.6.0.
• Bug fix: Hang when prompt pops up while SFTP session is being reconnected. 2258

• Translations completed: Farsi, French, Japanese, Spanish and Traditional Chinese.
• TLS/SSL core upgraded to OpenSSL 3.2.1.
• WebDAV/HTTP core upgraded to neon 0.33.0.
• Bug fix: Failure when trying to upload file using double-click over disconnected session. 2254
• Bug fix: Failure after long frequent use of session tabs. 2255
• Bug fix: New tab icon is drawn incorrectly on Explorer interface with Show selective text labels turned off. 2257
• Bug fix: Failure when switching to another application while new session is being opened using New Tab tab. 2251

• Added new ca-west-1 AWS region.
• Translations completed: Catalan, Czech, Dutch, Finnish, German, Hungarian, Italian, Korean, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Turkish and Tamil; and updated: Japanese.
• Support for posix-rename@openssh.com SFTP extension. 2231
• When cleaning up application data, deleting even Martin Prikryl and WinSCP 2 root keys, if they remain empty.
• Ignoring attempts to directly move/duplicate file over itself, as if protocol requires deleting, the file would be lost.
• Configurable FTP TLS shutdown procedure. 2250
• Not failing connection when FTP server responds to CSID command with an error. 2253
• Bug fix: Certificate authority cache was not copied to new configuration storage nor cleaned up with other caches.
• Bug fix: ssh protocol URL handling was not completely unregistered.
• Bug fix: Reported transfer size is rarely incorrect during FTP downloads.
• Bug fix: Failure after connecting to server. 2251
• Bug fix: FTP CSID command does not end with semicolon. 2252

• SSH core and SSH private key tools (PuTTYgen and Pageant) upgraded to PuTTY 0.80.
  It brings the following change:
  • Mitigations for SSH protocol “Terrapin” vulnerability. 2246 vuln-terrapin
• Support for Include directive when importing sites from OpenSSH. 2239
• Change: .NET assembly collections are tagged with ClassInterfaceType.None to avoid warnings from regasm.
• Not using directory listing to keep FTP session alive by default. 2244
• Windows Store installation on Windows 11 was incorrectly using INI file for configuration storage by default. 2245
• Bug fix: Find dialog file list is scaled incorrectly on some multi monitor systems with different scaling. 2241
• Bug fix: Cannot browse long local paths. 2242

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