Racial, ethnic, and religious inclusiveness
Do not use metaphors or similes that reinforce stereotypes. Examples include contrast black and white or blacklist and whitelist.
Do not use words that refer to historical trauma or lived experience of discrimination. Examples include slave, master, and nuke.
Gender inclusiveness
Refer to hypothetical people as they, them, and their, even in the singular.
Refer to anything that is not a person as it and its. For example, a module, plugin, function, client, server, or any other software or hardware component.
Do not assign a gender to anything that doesn't have one.
Do not use collective nouns like guys that assume gender.
Avoid colloquial phrases that contain arbitrary genders, like "a poor man's X".