APA 6 vs. APA 7: Major Changes: Language

Grammar

The usage of singular “they,”  “them,” “their,” “theirs,” “themselves,” or “themself,” not mentioned 

The usage of singular “they,”  “them,” “their,” “theirs,” “themselves,” or “themself,” are endorsed. 

Example:

Casey is a gender-fluid person. They are from Texas and enjoy tacos.

Every client got a care package delivered to them.

Each child played with their parent.

The cup of coffee is theirs.

A private person usually keeps to themselves [or themself].

Note: The above examples come from APAStyle.

Descriptive Phrase vs. Label 

Not Specified 

Be appropriately specific and use descriptive phrases to describe age, gender identity, sexual orientation, racial or ethnic groups, and socioeconomic status, instead of adjectives as labels

Example:
Preferred: People who are living in poverty
Not preferred: The poor