Manticore Search 25.12.0 Adds facet_filter_mode for Smarter Filter Panels

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Manticore Search version 25.12.0 has introduced a new feature called facet_filter_mode, designed to simplify how e-commerce filter panels recalculate available options after a user applies one or more filters. Previously, developers had to manually construct near-identical queries for each facet attribute such as color, size, brand, and availability to keep the filter panel accurate and usable. The new API allows a single query to define how each facet should inherit filters from the main search query, reducing redundant code. Three inheritance modes are available: strict, which mirrors the current result set; auto, which excludes the facet's own filter to show switchable options; and max, which calculates buckets over a broader base and labels values as selected, available, or unavailable. The feature is accessible through both SQL syntax and the JSON API, with an additional zeroes option introduced in version 27.3.0 to preserve zero-count buckets in max mode.

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