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Browser agent release notesRSS

March 20
Browser agent v1.311.0

v1.311.0

Features

agentIdentifier removal

Removed scoped references by agent identifier to simplify the agent architecture. All references are now stored directly within the agent reference, eliminating the need to blend agent references with scoped objects via lookup keys.

Attribute original page URL to all PageViewTiming nodes

Expanded pageUrl attribution to all timings, building on previous work for LCP. PageViewTiming events now report the original hard navigation URL for all node types, ensuring data consistency for SPA even if the URL changes before harvest.

improve MFE timing logic

Enhanced the agent's ability to identify the correct MFE script calling the register API. This improvement results in more accurate timing information for MFE environments.

Bug fixes

Enforce string IDs for new MFE registrations

Resolved an issue where non-string IDs caused errors during MFE entity synthesis. The agent now enforces string-based IDs and issues a warning if a different data type is provided.

Circular replacer removed reused objects from harvests

Fixed an issue where the internal stringify method removed shared pointers across harvest payloads, which occasionally caused missing params attributes on error harvests.

Update RegExp to prevent un-minimized webpack build issue

Replaced the $ character with its hexadecimal equivalent in regular expressions. This prevents Webpack from incorrectly replacing the character during the build process, which previously caused agent failures in unminimized builds.

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. 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 for more information.

Consistent with our browser support policy, v1.311.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 134-144, Edge 134-144, Safari 18-26, and Firefox 137-147. For mobile devices, v1.311.0 was built and tested for Android OS 16 and iOS Safari 18-26.

February 19
Browser agent v1.310.1

v1.310.1

Corrección de errores

Mejorar la entrada de LCP con valores de atribución de respaldo

En los casos en que se reporta LCP sin una entrada de atribución de web-vitals, el agente ahora transmitirá otros atributos predeterminados proporcionados, como timeToFirstByte, en lugar de ignorarlos.

Declaración de apoyo

New Relic recomienda que actualices el agente periódicamente para garantizar que obtengas las últimas características y beneficios de rendimiento. Las versiones anteriores ya no recibirán soporte cuando lleguen al final de su vida útil. Las fechas de lanzamiento reflejan la fecha de publicación original de la versión del agente.

Las nuevas versiones del agente del browser se lanzan a los clientes en pequeñas etapas a lo largo de un periodo de tiempo. Debido a esto, la fecha en que el lanzamiento esté disponible en su cuenta puede no coincidir con la fecha de publicación original. Consulte este dashboard de estado para obtener más información.

De acuerdo con nuestra política de soporte de navegadores, la v1.310.1 del agente Browser se creó y probó en estos navegadores y rangos de versiones: Chrome 134-144, Edge 134-144, Safari 18-26 y Firefox 137-147. Para dispositivos móviles, la v1.310.1 se compiló y probó para Android OS 16 y iOS Safari 18-26.

February 17
Browser agent v1.310.0

v1.310.0

Features

better MFE timing handling

Improve the detection of script assets reported by the browser which power the MicroFrontEndTiming event's timeToFetch and timeToBeRequested attributes. This change also includes new assetUrl and assetType attributes to better illustrate the assets used to populate the timing data.

This concludes the complete removal of the old SPA feature that is replaced by Soft Navigations feature. Since agent version 1.307.0, the default "SPA" was already switched over, so no breaking changes from this version are expected.

Capture MFE timings as MicroFrontEndTiming Events

Captures the lifecycle timings of registered entities in preparation for future micro front end product

Bug fixes

Update measure API types

Corrects an issue where the typings associated with the measure API did not accept PerformanceMark as a valid input for start or end values.

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. 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 for more information.

Consistent with our browser support policy, v1.310.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 134-144, Edge 134-144, Safari 17-26, and Firefox 137-147. For mobile devices, v1.310.0 was built and tested for Android OS 16 and iOS Safari 17-26.

February 3
Browser agent v1.309.0

v1.309.0

Features

Warn when more than one agent is running

Added a console warning when more than one Browser agent is running on the page.

Improve MFE tag setting

Enforce tags to be set for micro frontends by supplying an object of key-value pairs to the tags argument of the register(...) API. This allows for tags to be specified with an explicit value instead of only supporting boolean tags.

Add WebDriver detection attribute to PageView & PageViewTiming

PageView, PageViewTiming and initialPageLoad-category BrowserInteraction events will now report a webdriverDetected property corresponding to the navigator.webdriver set by the browser.

Bug fixes

Micro agent duplicate handlers

Fixes when micro agents are created in a staggered fashion, handlers for each agent is multiplied by the number of agents that follow. For example if there were two agents, the handlers for the first agent was registered twice. This had the effect of duplicating events + contents of harvest payloads.

allow child registrations from blocked parents

Allow blocked parent entities to still instantiate a child MFE when registering

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. 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 for more information.

Consistent with our browser support policy, v1.309.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 133-143, Edge 133-143, Safari 17-26, and Firefox 136-146. For mobile devices, v1.309.0 was built and tested for Android OS 16 and iOS Safari 17-26.

January 8
Browser agent v1.308.0

v1.308.0

Característica

agregar soporte para etiquetas mfe con la API de registro

Agrega soporte para agregar etiquetas de entidad mediante el uso de la API de registro

agregar el atributo child.id para facilitar la interconexión de MFE

Agrega un atributo child.id a los datos duplicados para facilitar el enlace cruzado futuro en la interfaz de usuario

Añadir API "deregister"

Agrega soporte para anular el registro de una entidad registrada, para usar con la próxima iniciativa de soporte de Micro Front End.

agrega el atributo parent.type para facilitar la síntesis de relaciones

Agrega el atributo parent.type requerido para la síntesis de relaciones futuras durante la ingesta de MFE.

Agregar motivo de cierre predeterminado

Agregue una razón de cierre predeterminada de unknown a los eventos de WebSocket cuya razón de cierre no se pudo determinar.

Corrección de errores

aplicar valores no nulos en los campos numéricos

Asegúrese de que los campos numéricos siempre se informen en los eventos de WebSocket estableciendo de forma predeterminada 0 en lugar de undefined

URLs de WebSocket limpios

Elimine los fragmentos hash y los parámetros de consulta de las URL informadas en los eventos de WebSocket

Declaración de apoyo

New Relic recomienda que actualices el agente periódicamente para garantizar que obtengas las últimas características y beneficios de rendimiento. Las versiones anteriores ya no recibirán soporte cuando lleguen al final de su vida útil. Las fechas de lanzamiento reflejan la fecha de publicación original de la versión del agente.

Las nuevas versiones del agente del browser se lanzan a los clientes en pequeñas etapas a lo largo de un periodo de tiempo. Debido a esto, la fecha en que el lanzamiento esté disponible en su cuenta puede no coincidir con la fecha de publicación original. Consulte este dashboard de estado para obtener más información.

De acuerdo con nuestra política de compatibilidad del navegador, la versión 1.308.0 del agente del navegador se creó y probó para estos navegadores y rangos de versiones: Chrome 133-143, Edge 133-143, Safari 17-26 y Firefox 136-146. Para dispositivos móviles, la versión 1.308.0 se creó y probó para Android OS 16 e iOS Safari 17-26.

January 6
Browser agent v1.307.0

v1.307.0

Característica

Hacer que la función de navegaciones suaves sea la SPA predeterminada

La función de navegaciones suaves es ahora la función en ejecución obligatoria para SPA. La función SPA anterior y obsoleta no se puede seleccionar ni utilizar a partir de esta actualización.

Agregar la opción resetSession a la API setUserId()

Introduce la opción de restablecer la sesión del agente del navegador al actualizar un ID de usuario a través de la API setUserId().

Soporte de comodines para la lista de denegación de Ajax

Agrega soporte de caracteres comodín, con el carácter *, a la función de lista de denegación de AJAX, lo que permite sustituir uno o más caracteres en sus filtros de lista de denegación.

Declaración de apoyo

New Relic recomienda que actualices el agente periódicamente para garantizar que obtengas las últimas características y beneficios de rendimiento. Las versiones anteriores ya no recibirán soporte cuando lleguen al final de su vida útil. Las fechas de lanzamiento reflejan la fecha de publicación original de la versión del agente.

Las nuevas versiones del agente del browser se lanzan a los clientes en pequeñas etapas a lo largo de un periodo de tiempo. Debido a esto, la fecha en que el lanzamiento esté disponible en su cuenta puede no coincidir con la fecha de publicación original. Consulte este dashboard de estado para obtener más información.

De acuerdo con nuestra política de compatibilidad del navegador, la versión 1.307.0 del agente del navegador se creó y probó para estos navegadores y rangos de versiones: Chrome 133-143, Edge 133-143, Safari 17-26 y Firefox 136-146. Para dispositivos móviles, la versión 1.307.0 se creó y probó para Android OS 16 e iOS Safari 17-26.

December 16, 2025
Browser agent v1.306.0

v1.306.0

Features

Control log API through separate RUM flag

Logs captured by the newrelic.log method will now be configurable through settings and controlled separately from wrapped logs. This allows one to be disabled without affecting the other, as in the case that only newrelic.log is desired and not auto instrumented console.

Ensure responseStart is valid before relying on onTTFB

Adds an extra validation step to ensure that responseStart of the nav timing entry is valid before relying on onTTFB to return valid data. The web-vitals library depends on that value to operate correctly, and without a valid TTFB response, the agent will not send the RUM call. This change ensures that fallback measures are taken when responseStart is invalid, to ensure a RUM call is sent more reliably, which helps compatibility with unsupported frameworks such as ElectronJS.

Bug fixes

Remove linebreak syntax from webpack output

Removes the newline character in webpack output to avoid issues with copy-pasting our script as a string inside code.

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. 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 for more information.

Consistent with our browser support policy, v1.306.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 133-143, Edge 133-143, Safari 17-26, and Firefox 135-145. For mobile devices, v1.306.0 was built and tested for Android OS 16 and iOS Safari 17-26.

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