chore: Add Browser agent v1.274.0 release notes

Author: newrelic-browser-agent-team

src/content/docs/release-notes/new-relic-browser-release-notes/browser-agent-release-notes/browser-agent-v1.274.0.mdx

@@ -0,0 +1,23 @@
+---
+subject: Browser agent
+releaseDate: "2024-11-19"
+version: 1.274.0
+features: ["Upgrade SessionReplay libraries to latest version"]
+bugs: []
+security: []
+---
+
+## v1.274.0
+
+### Features
+
+#### Upgrade SessionReplay libraries to latest version
+Upgrade underlying session replay libraries to latest version which addresses some known bugs. This change also removes the error swallower inside the session replay module and instead handles all session replay errors at the window level to allow for external libraries to observe known errors to induce fallback behaviors, such as those implemented in CSS-as-JS libraries.
+
+## 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), v1.274.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 120-130, Edge 120-130, Safari 16-17, and Firefox 122-132. For mobile devices, v1.274.0 was built and tested for Android OS 15 and iOS Safari 16-18.