facebook/flow v0.211.0

on GitHub

Likely to cause new Flow errors:

• We fixed an issue where the intersection of two identical object types are turned into empty in spreads. As a result, more errors might be revealed. example

Notable bug fixes:

• We fixed an eager evaluation bug that can lead to some bad interactions between conditional type and mapped type. (example)

Parser:

• We fixed the parser size regression since 0.210.0.

Library Definitions:

• We rewrote the Omit type implementation. Now it will preserve the optionality and the variance of the input object. example