---
agentTools:
  projectIndex: https://support.speedcurve.com/llms.txt
---

# RUM Update: lux.js v213

We have released v213 of lux.js. This release contains bug fixes and other improvements:

* Long tasks are now buffered, enabling LUX to instrument long tasks that occurred before the snippet.
* User interaction times in a SPA are now relative to the most recent LUX.init call, rather than relative to navigationStart.
* Element identifiers for user interaction (click, keypress) have been improved. Buttons and links that don't have an id attribute will use their text content as the identifier.