Tor Browser 4.5a5 发布，此版本现已提供在 extended downloads page 和 distribution directory。 Tor Browser 4.5a5 基于 Firefox ESR 31.6.0，包括 Firefox 重要安全更新。 此版本提高了系统的可用性和安全性。可用性方面创建了一个 Linux 的 FreeDesktop-compatible 启动封装器，给 Windows 用户提供可选的开始菜单和桌面快捷键。 在安全方面，改进了 Security Slider；改进了指纹防御显示；还有全屏的 HTML5 视频；Windows 版本不会再提示 Tor Browser 是 "unknown publisher"。 完整更新内容如下： All Platforms Bug 15448: Use golang 1.4.2 for meek and obs4proxy Bug 15265: Switch go.net repo to golang.org/x/net Bug 9387: "Security Slider 1.0" Bug 13766: Set a 10 minute circuit lifespan for non-content requests Bug 15460: Ensure FTP urls use content-window circuit isolation Bug 13650: Clip initial window height to 1000px Bug 14429: Ensure windows can only be resized to 200x100px multiples Bug 15334: Display Cookie Protections menu if disk records are enabled Bug 14324: Show HS circuit in Tor circuit display Bug 15086: Handle RTL text in Tor circuit display Bug 15085: Fix about:tor RTL text alignment problems Bug 10216: Add a pref to disable the local tor control port test Bug 14937: Show meek and flashproxy bridges in tor circuit display Bugs 13891+15207: Fix exceptions/errors in circuit display with bridges Bug 13019: Change locale hiding pref to boolean Bug 7255: Warn users about maximizing windows Bug 14631: Improve profile access error msgs (strings). Include descriptions and tooltip hints for security levels Notify users that the security slider exists Flip slider so that "low" is on the bottom Make use of new SVG and MathML prefs Bug 13983: Directory search path fix for Tor Messanger+TorBirdy Update Firefox to 31.6.0esr Update OpenSSL to 1.0.1m Update Tor to 0.2.6.6 Update NoScript to 2.6.9.19 Update HTTPS-Everywhere to 5.0 Update meek to 0.16 Update Tor Launcher to 0.2.7.3 Update Torbutton to 1.9.1.0 Pluggable Transport Dependency Updates: Bug 14937: Hard-code meek and flashproxy node fingerprints Bug 13019: Prevent Javascript from leaking system locale Bug 10280: Improved fix to prevent loading plugins into address space Bug 15406: Only include addons in incremental updates if they actually update Bug 15029: Don't prompt to include missing plugins Bug 12827: Create preference to disable SVG images (for security slider) Bug 13548: Create preference to disable MathML (for security slider) Bug 14631: Improve startup error messages for filesystem permissions issues Bug 15482: Don't allow circuits to change while a site is in use Linux Bug 13375: Create a hybrid GUI/desktop/shell launcher wrapper Bug 12468: Only print/write log messages if launched with --debug Windows Bug 3861: Begin signing Tor Browser for Windows the Windows way Bug 15201: Disable 'runas Administrator' codepaths in updater Bug 14688: Create shortcuts to desktop and start menu by default (optional) 更多请看发行说明。 Tor Browser 4.5a5 发布，提升可用性和安全性下载地址
