Filters accumulate. After a few months a workspace has forty, half of them near-duplicates, and editing one is nerve-racking because you do not know what depends on it.
The filter system was rebuilt around that problem:
- Search your filters by name, instead of scrolling a flat list.
- Related objects — before editing a filter, see every segment, saved search, and automation that uses it, so you know what you are about to change.
- Tree UI for conditions, making nested AND/OR groups readable instead of something you reverse-engineer.
Filter sharing was removed in the process. It created ambiguous ownership and was consistently the thing people found confusing; the related-objects view covers what it was actually used for.