Summary and Info:

I have a custom /etc/i3/config file that was overwritten when upgrading i3-wm from version 4.13-1 to 4.14.1-1. I don't know if this is happening with other packages, but I'm expecting it (will check later). This is only an annoyance for me because I have my configuration files backed up, but I worry that other people might be losing theirs. This is why I put severity on High (should it be Critical?).

The file differed between the package versions:

$ diff -u <(tar xOf /var/cache/pacman/pkg/i3-wm-4.13-1-x86_64.pkg.tar.xz etc/i3/config) <(tar xOf /var/cache/pacman/pkg/i3-wm-4.14.1-1-x86_64.pkg.tar.xz etc/i3/config)
--- /proc/self/fd/11 2017-10-06 15:48:50.968207750 -0700
+++ /proc/self/fd/12 2017-10-06 15:48:50.968207750 -0700
@@ -1,6 +1,6 @@
# i3 config file (v4)
#
-# Please see http://i3wm.org/docs/userguide.html for a complete reference!
+# Please see https://i3wm.org/docs/userguide.html for a complete reference!
#
# This config file uses keycodes (bindsym) and was written for the QWERTY
# layout.

I was expecting for a .pacnew file to be created for the new package's file, in this scenario.

I think my pacman.conf file differs from the default only in activating ILoveCandy, the multilib repository, and adding my own repository. I can share it if anyone likes.

Steps to Reproduce:

1. Have a custom /etc/i3/config.
2. Upgrade the package.
3. Check if /etc/i3/config is still the custom file.

I can share the old version package too, if anyone wants it to reproduce this bug.