I unwittingly updated Gitkraken from 5.0.4 on my Linux machine. Just like this dude, I was in for a nasty surprise: the newer Gitkraken is not free for individual use.
After spend much time looking around, I could only find this old Linux installation file gitkraken-5.0.4-1-x86_64.pkg.tar.xz here. It does not have .configure file. Thus, I could not do anything with it. Did anyone managed to get it working? This could help others who fall for the update trap from Axosoft.
I managed to find the old .deb file and got it back to working order. Did anyone manage to a copy online somewhere? I am afraid to accidentally lose the local copy.
First, download the old version. After a while of searching I found it at this archive, but your source seems to be the same:
wget http://ftp.vim.org/ftp/pub/ftp/os/Linux/distr/antergos/antergos/x86_64/gitkraken-5.0.4-1-x86_64.pkg.tar.xz
Unzip it and move the content of /opt into your /opt folder and do the same with the /usr folder respectively.
Last, you need to install a dependency:
apt update && apt install gconf2
Note: works for me on Kali 2020.3 (which depends on Debian 9.3.0)