PuTTY 0.64 Beta

PuTTY是一套輕量級的遠端連線程式，同時支援Telnet和SSH，由於用Telnet連線時，傳輸內容是用明碼在傳輸，而ssh能將內容加密，為了避免有心人士，在網路上竊取網路封包時，我們便可以使用PuTTY，透過SSH連線到遠端主機。

• 支援IPV6。
• 支援多種連線協定，抱括Telnet、SSH、Rlogin、Raw和Serial。
• 支援多種加密協定，包括3DES、AES、RC4等。
• 可支援繁體中文顯示，並可自訂字型、顏色及大小。
• 可自訂顯示的行數、列數。
• 可自訂連線檔案，同時記錄多台預連線主機。

- Security fix: PuTTY no longer retains the private half of users' keys in memory by mistake after authenticating with them. See private-key-not-wiped-2. (Sorry! We thought we'd fixed that in 0.63, but missed one.)
- Support for SSH connection sharing, so that multiple instances of PuTTY to the same host can share a single SSH connection instead of all having to log in independently.
- Command-line and configuration option to specify the expected host key(s).
- Defaults change: PuTTY now defaults to SSH-2 only, instead of its previous default of SSH-2 preferred.
- Local socket errors in port-forwarded connections are now recorded in the PuTTY Event Log.
- Bug fix: repeat key exchanges in the middle of an SSH session now never cause an annoying interactive host key prompt.
- Bug fix: reset the bolded-text default setting back to what it used to be. (0.63 set it to something wrong, as a side effect of refactoring.)
- Bug fix: IPv6 literals are handled sensibly throughout the suite, if you enclose them in square brackets to prevent the colons being mistaken for a :port suffix.
- Bug fix: IPv6 dynamic port forwardings should work again.