2.4.2

Version 2.4.2. September 05, 2026

• A double slider whose handles start at the same value can now be opened in either direction: the first drag or key press after the coincident start decides which handle moves, on mouse, touch and keyboard alike
• data-prettify-separator="" now disables the thousands separator instead of being ignored, matching what the JavaScript prettify_separator: '' option already did
• Fixed a step, min or max written in exponent notation (such as 1e-8) rounding every interior drag to 0
• Fixed floating-point noise in the from/to values, handle labels and grid ticks on sliders with a negative fractional min and a whole-number step
• Fixed the grid repeating a label when two ticks land on the same value; the tick mark stays, only the duplicate number is blanked
• Releasing a drag without further movement, a motionless press, or a click or key press that doesn't change the value no longer fires an extra onChange
• Fixed result.min_pretty/max_pretty staying unset or stale when hide_min_max is on
• Pull requests no longer need to carry rebuilt js/css files; CI builds them from source and checks a PR's built files only if the PR itself touched one
• Issues: #507, #681, #684, #760, #772, #851, #852, #853