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Browser Agent v1.279.1 Release Notes #19820

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Jan 29, 2025
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---
subject: Browser agent
releaseDate: "2025-01-28"
version: 1.279.1
features: []
bugs: ["CLS timing node not being reported post new Harvester"]
security: []
---

## v1.279.1

### Bug fixes

#### CLS timing node not being reported post new Harvester
Reintroduce the `cumulativeLayoutShift` timing of `PageViewTiming` events into EoL harvests. After v1.278.0, this timing stopped being sent when the user leaves the page, resulting in a drop in CLS counts. The node contains attributes that aid in identifying the cause of bad scores.

## Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach [end-of-life](https://docs.newrelic.com/docs/browser/browser-monitoring/getting-started/browser-agent-eol-policy/). Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this [status dashboard](https://newrelic.github.io/newrelic-browser-agent-release/) for more information.

Consistent with our [browser support policy](https://docs.newrelic.com/docs/browser/new-relic-browser/getting-started/compatibility-requirements-browser-monitoring/#browser-types), v1.279.1 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 122-132, Edge 122-132, Safari 17-17, and Firefox 124-134. For mobile devices, v1.279.1 was built and tested for Android OS 15 and iOS Safari 17-18.1.
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