Update README.md

README.md

@@ -49,6 +49,10 @@ The GUI version is also available after you installed it. You can launch it from
 
 ## Installation
 
+> [!Note]
+>
+> This instruction is for the 2.x version. The 1.x version is still available on the [1.x](https://github.com/yuezk/GlobalProtect-openconnect/tree/1.x) branch, you can build it from the source code by following the instructions in the `README.md` file.
+
 ### Debian/Ubuntu based distributions
 
 #### Install from PPA
@@ -104,10 +108,6 @@ Download the latest RPM package from [releases](https://github.com/yuezk/GlobalP
 
 The project depends on `openconnect`, `webkit2gtk`, `libsecret`, `libayatana-appindicator` or `libappindicator-gtk3`. You can install them first and then download the latest binary release (i.e., `*.bin.tar.gz`) from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page.
 
-### Install the Old Version (v1.4.9)
-
-The 1.x version is still available on the [1.x](https://github.com/yuezk/GlobalProtect-openconnect/tree/1.x) branch, you can build it from the source code by following the instructions in the `README.md` file.
-
 ## [License](./LICENSE)
 
 GPLv3