主题组件更新总是安装旧版本（通过 rake 或手动）

[Moin]

兼容性文件为低于 3.6 版本的 Discourse 安装安装特定版本：

.discourse-compatibility

Pinning plugin and theme versions for older Discourse installs (.discourse-compatibility)

Background Sometimes themes/plugins need to make changes which are only compatible with the latest version of Discourse. In that situation, older versions of Discourse can be instructed to use an older ‘pinned’ version of the plugin. This is achieved using a .discourse-compatibility file in the root of a theme/plugin repository. It’s a YAML file where keys specify the Discourse core version, and the values represent the associated version of your theme/plugin. Discourse core versio…