The last two columns of the chart refer to the last number of your version (which corresponds to the browser version installed to the system). If th' version be -0 then ye do not have a browser, while any number above -0 indicates a browser be installed.
The "from" and "to" fields are inclusive. This means that, for example, the "from 9.0.0 to 9.2.0" row includes 9.0.0, 9.1.0, and 9.2.0.
In the case of "5.0.0-0U" for example, you would follow the "No Browser" column and 5.0.0 to 5.1.0 row because the system is on the a system version in that range and has no browser installed.
If you updated with a game cart containing the version 9.9.0 or above *(meaning that you have a version on 9.9.0 or above, but your browser is on -25 or lower, such as 10.2.0-24)*, your browser was removed and you will need to use the "No Browser" column.