3.1.1

• Add special treatment for style and class DOM attributes to match DOM renderer

3.1.0

• Add support for disabling function and/or function name comparison in JSX mode
  • { functionNames:false } just serializes all function props as prop={Function}
  • { functions:false } turns off function serialization entirely
• Add skipFalseAttributes option - when set to false, turns off DOM attribute skipping (#4)

3.0.7

• Dont use self-closing tags in JSX mode

3.0.6

• Fix JSX rendering being non-deterministic about empty VNodes

3.0.5

• JSX Mode: skip attributes with null and undefined values
• JSX Mode: don't use self-closing tags as they make string assertions less useful

3.0.2

TL;DR: 3.0.0's {jsx:true} option has been replaced with preact-render-to-string/jsx.

3.0.0 added support for test-style JSX rendering (complex attributes rendered out using pretty-format). However, pretty-format actually doubled the size of preact-render-to-string and broke support for Node 4 and prior.

Instead of adding weight to the core library, which is often used in browsers (this library is part of preact-compat, for example), it's better to support these two "modes" via separate entrypoints into the module.

Here's the new solution - the library is now split into two different entrypoints, one for HTML/XML rendering, and the other specialized entry for JSX-style debug rendering.

Normal Mode

import renderToString from 'preact-render-to-string';

JSX-Style Mode (for test frameworks, debugging, etc)

import renderToString from 'preact-render-to-string/jsx';

3.0.0

• Add a { jsx:true } mode, which uses pretty-format to render complex JSX-style attribute values. This is useful for debugging purposes, and for preact-jsx-chai

2.8.0

Fixes

• #7 - Serialize object style attributes to style strings. Thanks @rmales!

Preact 5.2+ started passing Object style props through to the DOM better rendering performance, but that broke renderToString(). This fixes it!

Features

• #6 - Invoke componentWillMount() for stateful components just before render(). Thanks @mikestead!

2.7.0

• Add support for defaultProps on both pure and class components (#5)

2.6.1

• Skip children, key and ref attributes when rendering to HTML.