Installing latest version of wxwidgets

I am attempting to install the latest version of wxwidgets via the terminal and followed these directions.

However, when I navigated to the folder /usr/include, a folder was created called wx-3.0-unofficial. Is this the correct folder?

Also, if I wanted to install v3.10.0, would I perform the same commands but replace 3.0 with 3.1?

Basically, are these the correct commands I should use to install wxwidgets or is there a better method?

On the page, the commands are as follows (I skipped the part on installing the IDE):

sudo apt-add-repository 'deb http://repos.codelite.org/wx3.0.2/ubuntu/ trusty universe'
apt-get update 
apt-get install libwxbase3.0-0-unofficial \
                libwxbase3.0-dev \
                libwxgtk3.0-0-unofficial \
                libwxgtk3.0-dev \
                wx3.0-headers \
                wx-common \
                libwxbase3.0-dbg \
                libwxgtk3.0-dbg \
                wx3.0-i18n \
                wx3.0-examples \
                wx3.0-doc

Then, I followed some directions from the user guide

cd /usr/include
ls | grep wx
sudo ln -sv wx-2.8/wx wx

I replaced 2.8 with 3.0

After waiting for some time, wxwidgets has posted a little tutorial on how to install the latest version. As of this writing, the latest is v3.1.0. The tutorial can be found here:

http://codelite.org/LiteEditor/WxWidgets31Binaries#toc2

In a terminal, do something like:

sudo apt-add-repository 'deb http://repos.codelite.org/wx3.1.0/ubuntu/ artful universe'

For artful, substitute your distribution, such as xenial for ubuntu 16.04.

sudo apt-get update  
sudo apt-get install libwxbase3.1-0-unofficial \  
                     libwxbase3.1-dev \  
                     libwxgtk3.1-0-unofficial \  
                     libwxgtk3.1-dev \  
                     wx3.1-headers \  
                     wx-common \  
                     libwxgtk-webview3.1-0-unofficial \  
                     libwxgtk-webview3.1-dev \  
                     libwxgtk-media3.1-0-unofficial \  
                     libwxgtk-media3.1-dev \  
                     libwxbase3.1-0-unofficial-dbg \  
                     libwxgtk3.1-0-unofficial-dbg \  
                     libwxgtk-webview3.1-0-unofficial-dbg \  
                     libwxgtk-media3.1-0-unofficial-dbg \  
                     wx3.1-i18n \  
                     wx3.1-examples

wx-common and wx3.1-i18n are optional packages and will conflict with the distro's wx2.8 equivalents. That is unlikely to matter too much, but wx-common contains wxrc, so if you use this be aware that there may be differences after upgrading.

Edit:

For a one line command:

sudo apt-get install libwxbase3.1-0-unofficial && sudo apt-get install libwxbase3.1-dev && sudo apt-get install libwxgtk3.1-0-unofficial && sudo apt-get install libwxgtk3.1-dev && sudo apt-get install wx3.1-headers && sudo apt-get install wx-common && sudo apt-get install libwxgtk-webview3.1-0-unofficial && sudo apt-get install libwxgtk-webview3.1-dev && sudo apt-get install libwxgtk-media3.1-0-unofficial && sudo apt-get install libwxgtk-media3.1-dev && sudo apt-get install libwxbase3.1-0-unofficial-dbg && sudo apt-get install libwxgtk-webview3.1-0-unofficial-dbg && sudo apt-get install libwxgtk-media3.1-0-unofficial-dbg && sudo apt-get install wx3.1-i18n && sudo apt-get install wx3.1-examples

Did you look at wxWidget guide.

Following the developer guides is always the best way to install something.