[chef] updated chef-client cookbook failing on value_for_platform_family

[Jesse Campbell < >]

We are running chef 0.10.6 on the majority of our infrastructure.

in the chef-client cookbook readme it states:

Chef 0.9.12 or higher is required.
Chef 0.10.10 or higher is required for init_style "launchd".

we are getting this error:
FATAL: NoMethodError: undefined method `value_for_platform_family' for #<Chef::Recipe:0x7f8eb3ada400>

Was this added in a more recent version of chef? If so, why is it not mentioned in the readme?

I guess I'm approaching force-update time...