### Version 4.1.21 (2026-10-19)
– fixed: retina loading spinner 404 when legacy form styles are printed inline
– fixed: All status filter count on subscribers screen showing 0
– fixed: tags with numeric names (e.g. “2026”) can be created and assigned
– fixed: `mailster_list_removed` and `mailster_tag_removed` no longer run when the subscriber was not on that list or tag
– fixed: list-based unsubscribe still succeeds when the subscriber is not on every campaign list
– fixed: image placeholder endpoint no longer allows unbounded image sizes
– fixed: numeric custom date fields now keep date operators, formatted values, and export date formats