This is a major update. The following major new features were added:这是一个重大更新。添加了以下主要新功能：* GUI: Modernized look and feel, offering a selection between Basic and Experienced user level with reduced or full UI functionalityGUI：现代化的外观和感觉，提供基本和经验丰富的用户级别之间的选择，并具有简化或完整的UI功能

• OCI: Performance dashboard shows resource usage like for local VMsOCI：性能仪表板显示资源使用情况，例如本地VM
• OCI: Function to clone compute instancesOCI：克隆计算实例的函数
• OCI: Function to reset compute instancesOCI：重置计算实例的功能
• Oracle VirtualBox Extension Pack: Ajustment to the PUEL license, removing the duplicated evaluation option, for limited time evaluation use please download it from the Oracle Software Delivery CloudOracle VirtualBox扩展包：调整到PUEL许可证，删除重复的评估选项，对于有限时间的评估使用，请从Oracle Software Delivery Cloud下载
• VRDE: If user does not set up TLS with custom certificates, enable it with self-signed certificate, including issuing a new one before the old one expiresVRDE：如果用户没有使用自定义证书设置TLS，请使用自签名证书启用它，包括在旧证书过期之前颁发新的证书
• NAT: new engine with IPv6 support NAT：支持IPv6的新引擎
• macOS/ARM host: ARM virtualization for Linux and BSD VMsmacOS/ARM主机：Linux和BSD虚拟机的ARM虚拟化
• Linux host and guest: Added Wayland support for Clipboard sharing (bug #20808)Linux主机和访客：添加了对剪贴板共享的Wayland支持（bug#20808）

In addition, the following items were fixed and/or added:此外，还修复和/或添加了以下项目：* Screen recording: improve performance屏幕录制：提高性能

• EFI: Add new Microsoft DB/KEX certificates to newly created VMsEFI：将新的Microsoft DB/KEX证书添加到新创建的VM
• GUI: Improved overall accessibility GUI：改进了整体可访问性
• GUI: Migration to recent Qt version.GUI：迁移到最新的Qt版本。

https://forums.virtualbox.org/viewtopic.php?t=111988