Based on the great work in #718 by @jantimon - This release adds the new useOnInView hook.

• useOnInView hook — a no-re-render alternative to useInView that delivers (inView, entry) to your callback while returning a ref you can attach to any element. Designed for tracking, analytics, and other side effect heavy workloads where state updates are unnecessary.
• IntersectionChangeEffect / IntersectionEffectOptions types — exported helper types that describe the new hook’s callback and options surface.
• Storybook playground + documentation — new story, README section, and JSDoc example demonstrating how to use useOnInView.

• useInView, useOnInView, and <InView> now ignore the browser’s initial inView === false emission for onChange events, so handlers only fire once a real visibility change occurs, while still reporting all subsequent enter/leave transitions.

• Added a dedicated Vitest suite for useOnInView, covering thresholds, triggerOnce, skip toggling, merged refs, and multiple observers on the same node.

• chore: update package url in package.json by @thebuilder in https://github.com/thebuilder/react-intersection-observer/pull/721
• build(deps-dev): bump vite from 6.2.0 to 6.2.5 by @dependabot[bot] in https://github.com/thebuilder/react-intersection-observer/pull/724
• build(deps-dev): bump vite from 6.2.5 to 6.2.7 by @dependabot[bot] in https://github.com/thebuilder/react-intersection-observer/pull/727
• Fix minor grammatical issue in documentation intro by @Akshay-Vs in https://github.com/thebuilder/react-intersection-observer/pull/728
• Remove bundlephobia badge from README by @Copilot in https://github.com/thebuilder/react-intersection-observer/pull/731
• Update dependencies by @thebuilder in https://github.com/thebuilder/react-intersection-observer/pull/737
• feat: implement the useOnInView hook by @thebuilder in https://github.com/thebuilder/react-intersection-observer/pull/738

• @Akshay-Vs made their first contribution in https://github.com/thebuilder/react-intersection-observer/pull/728
• @Copilot made their first contribution in https://github.com/thebuilder/react-intersection-observer/pull/731

Full Changelog: https://github.com/thebuilder/react-intersection-observer/compare/v9.16.0...v10.0.0

• ci: drop semantic release flow by @thebuilder in https://github.com/thebuilder/react-intersection-observer/pull/719
• Correctly detect global testing framework by @thebuilder in https://github.com/thebuilder/react-intersection-observer/pull/720

Full Changelog: https://github.com/thebuilder/react-intersection-observer/compare/v9.15.1...v9.16.0

Fixes and improvements to react-intersection-observer/test-utils

• always recreate the IntersectionObserver mock (c720914)
• improve test lib detection (1858e43)
• use isMockFunction to detect if the IntersectionObserver is being mocked (189133f)

• restore beforeEach in test utils (788dd47)

• ensure browser environment in test-utils (6e459f2)

• support React 19 (8bafe25)
• Drop support for React 15/16. The types are no longer compatible with later version of React, since they have dropped the deprecated types.

• align IntersectionObserver options with DOM API (abb4ee8)

• fix package exports and simplify build (#695) (c9cef8f) - All thanks go to @RobinTail

• upgrade to Vitest 2 (#690) (054adf4)
  • Upgrade to Vitest 2
  • Add basic browser mode test, that runs with an unmocked IntersectionObserver
  • Types cleanup in test-utils, getting rid of @types/jest (replaced with vitest)
  • Move test mocking setup from beforeEach to beforeAll

• remove script to publish dist dir (0980efa)