For each week beginning on a given date, the figures show the number of sites that reported they are using the ipless 4.2.1 release.

Simple Less CSS project page
ipless 4.2.1 release page
All Simple Less CSS usage statistics
Usage statistics for all projects

Week starting Count
June 14th, 2026 7

Only Drupal websites using the Update Status module are included in the data. Read more information about how these statistics are calculated.