3.18.0 (2026-01-23)

The detailed new feature description can be found at:

billboard.js 3.18.0: Arc annotations, per-group normalization & enhanced treemap labels (dev.to link)

Bug Fixes

• color: Fix color update on gradient (9d6d392), closes #4048
• data: Handle undefined values in total calculation (18a5b9b), closes #4073
• interaction: Fix data.onover call in touch event (5fe448c), closes #4076
• load: Update call sequence to be after data are unloaded (f9f4a86), closes #4052
• text: Fix multiline data labels vertial position (6b5580a), closes #4062
• text: Fix text alignment to center (9f2960d), closes #4081
• util: update sanitization function (#4085) (49e079c), closes #4078

Features

• arc: Intent to ship Arc's annotation (c740a3b), closes #3602
• data: Intent to ship data.stack.normalize.perGroup (c879c25), closes #4060
• treemap: Enhance label formatter to include tile size (71c0d06), closes #4066