Improved
RUM update: lux.js v4.2.0
July 11th, 2025


setLanguage script commandToday we have release v4.1.2 of lux.js, immediately followed by v4.1.3. These updates are intended to reduce beacon payload sizes for a small number of RUM customers.
Increased screenshot timeout to 60 seconds
Minor changes to the agent including:
This is a hotfix release for lux.js v4.1.0.
We have released version 4.1 of lux.js today which brings Long Animation Frame support to SpeedCurve RUM.
Minor bug fix for Chrome agents