Meilisearch: v1.51.0 👽

### ✨ Enhancement - **Add filter condition to DSRs** by @dureuill in https://github.com/meilisearch/meilisearch/pull/6505 #### New `filter` rule activation condition Dynamic search rules (DSR) can now declare a new `filter` condition: it contains a single `values` key, whose value is a JSON object. The keys of this `values` JSON object are the facet names (e.g., `color`, `genres`, ...), while their values are the values that a filter must resolve to for these facets, so that the rule is active. <details> <summary>Example of sending a DSR with a filter condition</summary> ```jsonc // PATCH /dynamic-search-rules/test-filter { "conditions": { "filter": { "values": { "color": "red", "category": "shirt" } } }, "actions": [ { "selector": { "id": "red shirt on sales" }, "action": { "type": "pin", "position": 0 } } ] } ``` </details> <details> <summary>Example of search query that enables the DSR above</summary> ```jsonc { "filter": "(category = shirt AND color = red) OR (category = jeans AND color = blue)" } ``` </details> Note that the filter only needs to have one branch resolving to all the facet values declared in the rule for the rule to be active. #### New `lastUpdatedAt` field Dynamic search rules returned by `GET /dynamic-search-rules/{:ruleUid}` and `POST /dynamic-search-rules` contain an additional `lastUpdatedAt` field. This field is automatically updated with the `enqueuedAt` value of the last task that modified the rule. #### Rules are listed with the most recently updated first `POST /dynamic-search-rules` now lists rules in descending `lastUpdatedAt` order, meaning that the most recently updated rules will be listed first. #### New environment variables New environment variables are defined to control the behavior of the DSR fuel: - `MEILI_EXPERIMENTAL_DSR_FUEL_FILTER_FUEL` (in range 0..4294967296): controls how many filter constraint combinations Meilisearch will attempt to resolve at search time before giving up and applying partial rules. - `MEILI_EXPERIMENTAL_DSR_FUEL_FILTER_OR_FUEL` (in range 0..65536): controls how many filter disjunctions Meilisearch will build when turning a filter to its canonical shape - `MEILI_EXPERIMENTAL_DSR_FUEL_FILTER_AND_FUEL` (in range 0..65536): controls how many filter conjunctions Meilisearch will build in total when turning a filter to its canonical shape - `MEILI_EXPERIMENTAL_DSR_FUEL_FILTER_DEPTH_FUEL` (in range 0..256): controls the maximum recursive depth that Meilisearch allows when turning a filter to its canonical shape - **Speed up search requests** by @Kerollmops in https://github.com/meilisearch/meilisearch/pull/6528 Improves Meilisearch search speed by avoiding unnecessary internal work. We drastically reduced the number of times we retrieve data from disk to a single time across the whole search pipeline. This improvement will have the greatest effect on datasets with a large number of distinct fields across documents. We have seen search speeds up to 5.4x on a dataset with more than 14k different fields. - **Stabilize dumpless upgrade** by @curquiza in https://github.com/meilisearch/meilisearch/pull/6486 ⚠️ Breaking change following the stabilization of an experimental feature ⚠️ The flag `—-experimental-dumpless-upgrade` is renamed `—-upgrade-db`, keeping the exact same behavior. - **Remove unused experimental features** by @curquiza in https://github.com/meilisearch/meilisearch/pull/6489 ⚠️ Breaking change: removing the following experimental features ⚠️ - [Replication parameters](https://github.com/orgs/meilisearch/discussions/725): removing `--experimental-replication-parameters` because outdated. We now have another way to handle replication. - [Import dumps with old document indexer fallback](https://github.com/orgs/meilisearch/discussions/851): removing `--experimental-no-edition-2024-for-dumps`. This flag existed to prevent bugs related to our new indexer, which is now stable. - [No snapshot compression](https://github.com/orgs/meilisearch/discussions/833): removing `--experimental-no-snapshot-compaction` because it's not useful anymore. ### 🪲 Bug fixes - Make sure legacy attribute patterns work by @Kerollmops in https://github.com/meilisearch/meilisearch/pull/6531 - Missing support for the shorthand filterable attributes syntax ### 🔩 Miscellaneous - Add missing logs in multisearch by @ManyTheFish in https://github.com/meilisearch/meilisearch/pull/6529 - Docs: Fix stale pre-v1.0 supported versions statement by @vishnujayvel in https://github.com/meilisearch/meilisearch/pull/6524 - Bump sigstore/cosign-installer from 4.1.1 to 4.1.2 by @dependabot[bot] in https://github.com/meilisearch/meilisearch/pull/6427 - Bump actions/github-script from 7 to 9 by @dependabot[bot] in https://github.com/meilisearch/meilisearch/pull/6425 - Bump actions/upload-artifact from 4 to 7 by @dependabot[bot] in https://github.com/meilisearch/meilisearch/pull/6428 ## New Contributors - @vishnujayvel made their first contribution in https://github.com/meilisearch/meilisearch/pull/6524