v4.13.0

• Make process.chdir(), process.cwd(), and fs.createWriteStream() work with bypass() (thanks @3cp, see #307)
• Fix memory leak associated with Node 10 (thanks #3cp, see #303)
• Async function handling in bypass() (see #306)
• Big new feature! Temporarily bypass the mocked filesystem with the bypass() function (thanks @nonara, see #304)

v4.12.0

• Check permissions in readdir and readdirSync (thanks @warpdesign, see #295)
• Add support for Buffer arg on many fs functions (thanks @3cp, see #293)
• Fix checks for read permission (thanks @3cp, see #289)
• Correct error code for readFile on a directory (thanks @3cp, see #286)

v4.11.0

• Support withFileTypes when reading directories (thanks @mrmlnc, see #287)

v4.10.4

• Throw ENOTDIR when trying to open an incorrect path (thanks @niieani, see #282)
• Fix maybeCallback return (thanks @3cp, see #281)