web-vitals/CHANGELOG.md

Easily measure performance metrics in JavaScript

# Changelog

### v2.1.2 (2021-10-11)

- Ensure reported TTFB values are less than the current page time ([#187](https://github.com/GoogleChrome/web-vitals/pull/187))

### v2.1.1 (2021-10-06)

- Add feature detects to support Opera mini in extreme data saver mode ([#186](https://github.com/GoogleChrome/web-vitals/pull/186))

### v2.1.0 (2021-07-01)

- Add batch reporting support and guidance ([#166](https://github.com/GoogleChrome/web-vitals/pull/166))

### v2.0.1 (2021-06-02)

- Detect getEntriesByName support before calling ([#158](https://github.com/GoogleChrome/web-vitals/pull/158))

### v2.0.0 (2021-06-01)

- **[BREAKING]** Update CLS to max session window 5s cap 1s gap ([#148](https://github.com/GoogleChrome/web-vitals/pull/148))
- Ensure CLS is only reported if page was visible ([#149](https://github.com/GoogleChrome/web-vitals/pull/149))
- Only report CLS when FCP is reported ([#154](https://github.com/GoogleChrome/web-vitals/pull/154))
- Update the unique ID version prefix ([#157](https://github.com/GoogleChrome/web-vitals/pull/157))

### v1.1.2 (2021-05-05)

- Ignore negative TTFB values in Firefox ([#147](https://github.com/GoogleChrome/web-vitals/pull/147))
- Add workaround for Safari FCP bug ([#145](https://github.com/GoogleChrome/web-vitals/pull/145))
- Add more extensive FID feature detect ([#143](https://github.com/GoogleChrome/web-vitals/pull/143))

### v1.1.1 (2021-03-13)

- Remove use of legacy API to detect Firefox ([#128](https://github.com/GoogleChrome/web-vitals/pull/128))

### v1.1.0 (2021-01-13)

- Fix incorrect UMD config for base+polyfill script ([#117](https://github.com/GoogleChrome/web-vitals/pull/117))
- Fix missing getter in polyfill ([#114](https://github.com/GoogleChrome/web-vitals/pull/114))
- Add support for Set in place of WeakSet for IE11 compat ([#110](https://github.com/GoogleChrome/web-vitals/pull/110))

### v1.0.1 (2020-11-16)

- Fix missing `typings` declaration ([#90](https://github.com/GoogleChrome/web-vitals/pull/90))

### v1.0.0 (2020-11-16)

- **[BREAKING]** Add support for reporting metrics on back/forward cache restore ([#87](https://github.com/GoogleChrome/web-vitals/pull/87))
- **[BREAKING]** Remove the `isFinal` flag from the Metric interface ([#86](https://github.com/GoogleChrome/web-vitals/pull/86))
- Remove the scroll listener to stop LCP observing ([#85](https://github.com/GoogleChrome/web-vitals/pull/85))

### v0.2.4 (2020-07-23)

- Remove the unload listener ([#68](https://github.com/GoogleChrome/web-vitals/pull/68))

### v0.2.3 (2020-06-26)

- Ensure reports only occur if a PO was created ([#58](https://github.com/GoogleChrome/web-vitals/pull/58))

### v0.2.2 (2020-05-12)

- Remove package `type` field ([#35](https://github.com/GoogleChrome/web-vitals/pull/35))

### v0.2.1 (2020-05-06)

- Ensure all modules are pure modules ([#23](https://github.com/GoogleChrome/web-vitals/pull/23))
- Ensure proper TypeScript exports and config ([#22](https://github.com/GoogleChrome/web-vitals/pull/22))

### v0.2.0 (2020-05-03)

- Initial public release

### v0.1.0 (2020-04-24)

- Initial pre-release