Since 1.16 and the name change babylon -> babel, getSupportInfo returns "babel" as a valid parser for JS, Flow, JSX language. Of course, babel is not a valid parser with prettier < 1.16.
This appeared in prettier-vscode.
We have a current workaround, sadly it doesn't work with prettier < 1.8 (where getSupportInfo doesn't exist)
Changing prettier.getSupportInfo(otherPrettier.version) to otherPrettier.getSupportInfo()

context:
prettier/prettier-vscode#705
prettier/prettier-vscode#706

Environments:

• Prettier Version: 1.16.3
• Running Prettier via: API
• Runtime: Node 8+
• Operating System: ALL

Steps to reproduce:

require("prettier").getSupportInfo("0.0.0").languages.find(l=>l.name === "JavaScript").parsers

Expected behavior:
[ 'babylon', 'flow' ]

Actual behavior:
[ 'babel', 'flow' ]