WinSCP: download ældre versioner

- Allowing to report abnormal program terminations.
- Bug fix: Failure when keeping remote directory up to date. 2468
- Bug fix: Failure when using options in button drop down menus on Overwrite confirmation box. 2469
- Bug fix: File handle leak. 2470
- Bug fix: Failure when using rmdir command with WebDAV protocol. 2471

- Translations completed: Croatian, Finnish, Georgian, Italian and Serbian, and updated: Slovenian.
- TLS/SSL core upgraded to OpenSSL 3.3.7.
- SSH private key tools (PuTTYgen and Pageant) upgraded to PuTTY 0.85. SSH core upgraded to include some fixes.
It brings the following change:
- Security issue: fixed a remotely triggerable use-after-free in Pageant. pageant-deferred-decryption-uaf
- Security issue: fixed a remotely triggerable buffer overflow if the OpenSSH encrypt-then-MAC cipher modes are in use. etm-large-packet-overflow
- Security issue: fixed a buffer overflow in private key decryption, if the private key is constructed maliciously. argon2-parameter-checks
- Denial-of-service security fixes: a server can trigger a tight loop in WinSCP, and even a MITM can make it consume unlimited memory at startup. maxpkt-0-tight-loop
- Security issue: fixed a remotely triggerable double-free in RSA key exchange. rsakex-double-free
- Minor security issue: fixed a remotely triggerable crash in NIST ECDSA signature verification. ecdsa-remotely-triggerable-assertion
- Back-propagated fixes from 6.6.2 beta release:
- Bug fix: Failure setting Session.DebugLogPath when running in impersonated context. 2441
- Bug fix: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. CVE-2026-45447 fix from OpenSSL 3.4.6.

- Translations completed: Macedonian, and updated: Lithuanian, and Russian.
- TLS/SSL core upgraded to OpenSSL 3.3.6.
- Back-propagated improvement from 6.6-6.6.1 beta release:
- New DigiCert EV code signing certificate valid until March 2029 is used for signing binaries.
- XML parser upgraded to Expat 2.7.5.
- Support for Beyond Compare 5 in Compare Files extension. (2417)
- Bug fix: Checking if edited/opened file was modified externally didn't work for inactive sessions. (2426)

- Translation updated: Vietnamese.
- Bug fix: Pasting files using local directory tree context menu pastes them to the current directory, instead of the selected one.
- Bug fix: Failure when opening site imported from PuTTY with unsupported SSH proxy. 2407
- Bug fix: Incorrect hostname validation when connecting to S3 endpoint with certificate that does not cover root S3 hostname. 2409

- Translation updated: Georgian and Belarusian.
- TLS/SSL core upgraded to OpenSSL 3.3.5.
- XML parser upgraded to Expat 2.7.3.
- Added new ap-southeast-6 AWS region.
- Bug fix: When restored after operation completed while minimized the window is disabled. 2393
- Bug fix: Command md5sums is incorrectly used to calculate MD5 checksum instead of md5sum. 2392
- Bug fix: Incomplete FTP upload when the source stream/stdin reads less than requested. 2395
- Bug fix: Shift-clicking OK button on Synchronization checklist window when synchronization in the background was not possible still closed the window.
- Bug fix: Failure after reloading file panel when number of files decreases. 2402
- Bug fix: Failure or silently missing headers when when S3 request headers were too long.

- Translations updated: Belarusian, Brazilian Portuguese 2386 and Slovenian.
- TLS/SSL core upgraded to OpenSSL 3.3.4.
- Temporarily not updating drag&drop shell extension for minor changes when installing for current user. 2381
- Bug fix: Failure when reading empty certificate authority configuration.
- Bug fix: Failure when running Maximized. 2387
- Bug fix: Incorrect scaling of navigation tree on Login and Preferences dialogs. 2385
- Bug fix: Incorrect scaling of drag&drop shell extension status display on Preferences dialog.

Translation completed: Brazilian Portuguese.
WebDAV/HTTP core upgraded to neon 0.32.4.
XML parser upgraded to Expat 2.4.9.
Preventing opening tunneled sessions in PuTTY from Login dialog as it cannot work. 2116
Bug fix: Agent forwarding does not work. 2113
Bug fix: Stall when new folder is detected and the drive contains folders with numerical names. 2114
Bug fix: New version notification is not displaying.

• Bug fix: Hang when entering small directories with FTP protocol.
• Bug fix: Lag when moving files from remote panel using drag&drop.
• Bug fix: After certain operations, drive that was ever opened in local file panel cannot be safely removed temporarily.