Fedora 31 now supports the
net.ipv4.ping_group_range kernel parameter for all user groups. This change enables all users to create Internet Control Message Protocol (ICMP) Echo sockets without using the
setuid binaries, or having the
CAP_NET_RAW file capabilities.
As a result, the rootless
podman containers are now able to use the
ping utility. This change applies also to users developing on the Fedora Silverblue variant, who use containers created through the
Fedora 31 no longer provides 32-bit kernels or bootable images for i686 systems. This change is a result of ever decreasing amount of users with 32-bit only hardware.
Enablement of control groups version 2 (
cgroups-v2) by default allows the system utilities to conveniently take advantage of new functionality and fixes this kernel feature brings.
Users have to update any tools or scripts they used for manual configuration of
cgroups-v1 so that they reflect
cgroups-v2 now. The tools or scripts should not require any changes, if they utilized the
Some container engines leak the control group hierarchy into containers. This could pose a problem for container images that expect to be running in a control group version 1 environment. This change is tied to the removal of the
docker package in Fedora 31; see the Containers section for details.
To retain the old default of control groups version 1 (
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