This update provides the following fixes and improvements.
Outlook
・Networking improvements for Exchange accounts
・New "Propose New Time" feature: Meeting attendees can
propose a new time for a meeting, and meeting organizers can
view and modify meeting proposals and send updates.
・Known bug fixes
Word
・Scrolling performance improvements
・New Macro recording feature
・New search feature for online document templates
・Proofing tools: New "custom dictionary" and "exclude dictionary" support
・New user information settings in program preferences
・Improved keyboard shortcuts: Support for the most popular Windows Word
keyboard shortcuts
・Accessibility feature: Improved support for VoiceOver
・Performance improvements
・Known bug fixes
Excel
・New Analysis ToolPak New "Solver" feature
・Accessibility feature: Improved support for VoiceOver
・Known bug fixes
PowerPoint
・Accessibility feature: Improved support for VoiceOver
・Known bug fixes
来源：https://support.microsoft.com/zh-tw/kb/3048768
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目前更新大塞车还无法体验新的Build QQ
欢迎大家在推文讨论有什么改善的地方~!