Before upgrading, it is advised to read the changelog. When upgrading several versions, please read all notes applying to the upgrade.
4.0.x to 4.1.0
setting-max-recursion-depth defaulted to 4 but
was always overridden to 6 during the startup. The issue has been fixed and the default value
set to 6 to keep the behavior consistent.
4.0.5 to 4.0.6
One default was changed:
use-incoming-edns-subnetdefaults to off, was on before
4.0.3 to 4.0.4
One setting has been added to limit the risk of overflowing the stack:
max-recursion-depthdefaults to 40 and was unlimited before
4.0.0 to 4.0.1
Two settings have changed defaults, these new defaults decrease CPU usage: