gpg failed to sign the data fatal: failed to write commit object [Git 2.10.0]

Question

I followed few articles over the pretty attributes on Git 2.10 release note. Going through which upgraded the git to 2.10.0 and made changes to global .gitconfig

Answer 1

I must have accidentally updated gpg somehow because I got this after trying to test if gpg works:

gpg: WARNING: server 'gpg-agent' is older than us (2.1.21 < 2.2.10)
gpg: Note: Outdated servers may lack important security fixes.
gpg: Note: Use the command "gpgconf --kill all" to restart them.

Running gpgconf --kill all fixed it for me.

Hope this helps someone.