Have the Structured Data Requirements Changed?

[celebra1]

I was in GMC and noticed that Google wasn't recognizing my Availability field. I have not altered the code for that area. Have the rules / requirements changed?

[celebra1]

Structured Data Availability Field

I am still having issues with the availability field. Assuming that the coding is correct (new responsive template set), has Google made changes to what wording can be used there? It appears to be part of the algorithm update rollout a week ago. Can we only use In Stock, Out of Stock, In Store Only? Or can we use the "language" we choose?

[celebra1]

Availability Field

Tech Support sent me this link. Google has only a limited amount of "answers" it will accept for that field.