I just upgraded the version of Searx from 0.12 to 0.13.1. The upgrade was quite easy, it needed me around 30 minutes to upgrade it and to verify if everything was ok. If you followed the standard installation, you just have to follow these steps bellow to upgrade it:
sudo -u searx -i
mv searx/settings.yml searx/settings.yml.old #(to keep your previous configuration
# copy your own settings from searx/settings.yml.old to searx/settings.yml
rm searx/settings.yml.old #not needed anymore
pip install -r requirements.txt
python setup.py install
#exit the virtual_env
Now your application is upgraded, you just have to restart the service with:
sudo /etc/init.d/uwsgi restart
I also add some search engine which respect privacy enable by default like duckduckgo, xquick, qwant, startpage, ixquick.
I hope this article was useful for you to upgrade your version of Searx. I am aware I have a Captcha issue with Google, I am working on it.
Have a nice day