About why Wallabag Pocket (getPocket/ReadItLater) alternative i wrote before so look there 🙂
Wallabag still is getting better and better.
If you installed it using tar method (like I did) you can easily update it:
wget http://wllbg.org/latest-v2-package -O wallabag.tar.gz tar zxvf wallabag.tar.gz
We need to make back up of those file/folders:
Data folder is essential if we are using SQLite as backend (you can verify that inside parameters.yml file)
Next we just need to overwrite out old wallabag instance with new one and copy our config file over it.