The extension and native versions should be kept in sync to avoid potential problems and missing features. It is recommended to keep them updated to the newest available version, unless there are known big bugs in that release.
As the native program cannot perform automatic updates, there are two options for keeping it up to date. The first one is to manually update the native program when the extension updates. When extension detects an outdated native program, it will display a notification with update instructions.
On supported platforms, you can also install the native program with the supported package managers and manage updates through it. Please keep in mind that some package managers might have delayed releases.