Sourced from styled-components's releases.

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Patch Changes

• 55d05c1: Make react-dom an optional peer dependency, clean up some unnecessary type peers.

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Patch Changes

• 51ffa9c: Fix createGlobalStyle compatibility with React StrictMode and RSC

  This fix addresses issues where global styles would disappear or behave incorrectly in React StrictMode and RSC:

  1. Static styles optimization: Static global styles (without props/interpolations) are now only injected once and won't be removed/re-added on every render. This prevents the style flickering that could occur during concurrent rendering.

  2. StrictMode-aware cleanup: Style cleanup now uses queueMicrotask to coordinate with React's effect lifecycle. In StrictMode's simulated unmount/remount cycle, styles are preserved. On real unmount, styles are properly removed.

  3. RSC compatibility: Move useRef inside RSC guard in createGlobalStyle and unify all useContext calls to use consistent !IS_RSC ? pattern.

  4. RSC inline style tag cleanup: Fix bug where server-defined createGlobalStyle rendered in client components would leave behind accumulated SSR-rendered inline <style data-styled-global> tags. The cleanup effect now removes these hoisted style tags when the component unmounts or re-renders with different CSS.

  These changes ensure createGlobalStyle works correctly with:

  • React StrictMode's double-render behavior
  • React 18/19's concurrent rendering features
  • React 19's style hoisting with the precedence attribute
  • React Server Components (server-defined GlobalStyles in client components)

• 51ffa9c: Restore styled.br.

• 1f794b7: Add package.json "exports" field for better native ESM integration.

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Patch Changes

• 189bc17: Fix url() CSS function values being incorrectly stripped when using unquoted URLs containing // (e.g., url(https://example.com)). The // in protocol URLs like https://, http://, file://, and protocol-relative URLs was incorrectly being treated as a JavaScript-style line comment.

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Patch Changes

• 7ff7002: Fix: Line comments (//) in multiline CSS declarations no longer cause parsing errors (fixes #5613)

  JS-style line comments (//) placed after multiline declarations like calc() were not being properly stripped, causing CSS parsing issues. Comments are now correctly removed anywhere in the CSS while preserving valid syntax.

  Example that now works:

  const Box = styled.div`
    max-height: calc(100px + 200px + 300px); // This comment no longer breaks parsing
    background-color: green;
  `;

... (truncated)

• 5372c2a Version Packages (#5646)
• 55d05c1 Make react-dom optional (#5603)
• 2216822 Version Packages (#5645)
• 51ffa9c fix: resolve createGlobalStyle SSR issue in v6.3.x (#5638)
• 1f794b7 Add exports to package.json (#5644)
• a1e3789 Version Packages (#5642)
• 189bc17 [WIP] Fix url() css function removal in styled-components (#5639)
• 816720a chore: remove discord
• f64f1fe Version Packages (#5636)
• 7ff7002 Fix syntax error in styled-components v6 handling (#5635)
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