Ubuntu 的 snap 是一種應用程式包管理系統，它允許開發者和用戶更容易地分發和安裝應用程式。snap 包含了應用程式和它們運行所需的所有依賴項，這樣可以在不同的 Linux 發行版上無縫運行。

Snap 版本分為幾個不同的通道，反映了不同的穩定性和開發階段：

• stable: 最穩定的版本，適合所有用戶使用。如：sudo snap install wekan
• candidate: 候選版本，通常是接近穩定的，但可能還需要進一步測試。如：sudo snap install wekan –candidate
• beta: 測試版本，包含了即將發布的新功能，但可能還不夠穩定。如：sudo snap install wekan –beta
• edge: 最前沿的版本，通常是開發中的版本，可能包含未完成的特性或較多錯誤。如：sudo snap install wekan –edge

通常情況下，開發者會先在 edge 通道發布最新的更改，然後隨著問題的解決，逐步推送到 beta、candidate，最後是 stable 通道。這樣用戶可以根據自己願意承擔的風險程度選擇安裝不同通道的版本

MUbuntu’s snap is an application packaging system that allows developers and users to distribute and install applications more easily. Snap packages contain the application and all its dependencies, ensuring it can run seamlessly across different Linux distributions.

Snap versions are divided into several channels, reflecting different levels of stability and development stages:

• stable: The most stable version, suitable for all users. Ex: sudo snap install wekan
• candidate: A release candidate version, usually close to stable but may require further testing. Ex: sudo snap install wekan –candidate
• beta: A beta version that includes upcoming features but might not be stable enough. Ex: sudo snap install wekan –beta
• edge: The cutting-edge version, often in development, which may include incomplete features or more errors. Ex: sudo snap install wekan –edge

Typically, developers release the latest changes in the edge channel first, and as issues are resolved, they progressively push updates to the beta, candidate, and finally the stable channel. This allows users to choose which version to install based on the level of risk they are willing to take.