v3.0.3

Includes various bug fixes and optimizations for existing plugins.

We're also revamped the documentation for the project. You can find it on svgo.dev!
The frontend for svgo.dev is maintained in svg/svgo.dev, contributions are welcome.

What's Changed

Default Behavior

• removeComments, introduces preservePatterns parameter. Preserves legal comments by default, same as the previous behavior, but can now be overridden. By @SethFalco in #1812
• removeDesc, set the removeAny parameter to false by default for accessibility. By @SethFalco in #1806

Bug Fixes

• removeRasterImages, removes inline JPEG images. By @abejfehr in #1742
• cleanupIds, correctly handle when 2 IDs have been referenced in a single attribute. By @SethFalco in #1795
• cleanupIds, correctly handle when we've encountered a reference to a node that doesn't exist. By @SethFalco in #1817
• inlineStyles, treat style prop keys as case-insensitive. By @SethFalco in #1797
• inlineStyles, remove all classes in multiclass selector. By @SethFalco in #1801
• inlineStyles, ignore empty CSS blocks instead of adding empty style attribute. By @SethFalco in #1823
• minifyStyles, removes unused class selectors when the document has no classes. By @SethFalco in #1800
• prefixIds, reuse the same prefix when encountering an ID multiple times. By @SethFalco in #1814
• removeHiddenElems, stops removing non-rendering elements like masks. By @SethFalco in #1793
• reusePaths, creates a new ID if the current one is referenced by another element. By @SethFalco in #1784
• reusePaths, removes redundant defs children after optimization. By @SethFalco in #1785
• reusePaths, stops duplicating attributes into the shared definition. By @SethFalco in #1791
• Don't crash on a null, undefined, or empty plugin. Instead, log a warning and ignore it. By @SethFalco in #1128

SVG Optimization

• convertTransform, omit spaces between functions. By @SethFalco in #1802
• removeScriptElement, removes callbacks (on*) and href attributes with javascript: URIs. By @cakeinpanic and @SethFalco in #1807, #1818, #1819, #1820
• convertOneStopGradients, new plugin to convert gradients with one stop to a solid color, disabled by default. By @SethFalco in #1790

Performance

• Various optimizations for path handling. By @marvinhagemeister in #1716 and #1717

Chores

• Revise the README. By @ADTC in #1731
• Fix dead link to postcss-svgo in README. By @Lehoczky in #1770
• Replace webpack loader library in README as previous was deprecated. By @tanyabouman in #1771

Metrics

Before and after using vectors from various sources, with the default preset of each respective version:

SVG	Original	v3.0.2	v3.0.3	Delta
Arch Linux Logo	8.584 KiB	4.748 KiB	4.747 KiB	⬇️ 0.001 KiB
Blobs	50.45 KiB	42.949 KiB	42.949 KiB
Isometric Madness	869.034 KiB	550.829 KiB	550.699 KiB	⬇️ 0.13 KiB
tldr-pages Banner	2.071 KiB	1.07 KiB	1.07 KiB
Wikipedia Logo	161.552 KiB	118.441 KiB	118.441 KiB

Before and after of the browser bundle of each respective version:

	v3.0.2	v3.0.3	Delta
svgo.browser.js	643.5 kB	651.7 kB	⬆️ 8.2 kB