> ## Documentation Index
> Fetch the complete documentation index at: https://www.meilisearch.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Meilisearch v1.35 release notes

> Released February 2, 2026

## New Features

### Search Performance Observability

All search routes now support a `showPerformanceDetails` parameter that returns detailed performance metrics for your searches. When enabled, the response includes a `performanceDetails` field with timing information for each stage of the search pipeline.

**Affected routes:**

* `POST /indexes/<index_uid>/search`
* `GET /indexes/<index_uid>/search`
* `POST /multi-search`
* `POST /indexes/<index_uid>/similar`
* `GET /indexes/<index_uid>/similar`

#### Search Example

Request:

```json theme={null}
{
  "q": "glass",
  "showPerformanceDetails": true
}
```

Response:

```json theme={null}
{
 "hits": ,
 "query": "glass",
 "processingTimeMs": 5,
 "limit": 20,
 "offset": 0,
 "estimatedTotalHits": 1,
 "requestUid": "<uuid>",
 "performanceDetails": {
 "wait for permit": "295.29µs",
 "search > tokenize": "436.67µs",
 "search > resolve universe": "649.00µs",
 "search > keyword search": "515.71µs",
 "search > format": "288.54µs",
 "search": "3.56ms"
 }
}
```

#### Multi-search Example

Request:

```json theme={null}
{
  "queries": [
    {
      "indexUid": "<index_uid>",
      "q": "glass",
      "showPerformanceDetails": true
    }
  ]
}
```

#### Federated Search Example

Request:

```json theme={null}
{
  "federation": {
    "showPerformanceDetails": true
  },
  "queries": [
    {
      "indexUid": "<index_uid>",
      "q": "glass"
    }
  ]
}
```

#### Similar Documents Example

Request:

```json theme={null}
{
  "id": 143,
  "embedder": "manual",
  "showPerformanceDetails": true
}
```

## Improvements

### Multithreaded Post-processing Now Always Enabled

Multithreaded post-processing of facets and prefixes is now permanently enabled, removing the experimental feature flag. This results in faster indexing on multi-core machines.

## Other

### Breaking Change: Fields Endpoint Response Format

The `POST /indexes/<index_uid>/fields` route now returns a paginated object instead of a direct array. This allows you to see how many fields match a given filter.

Before:

```json theme={null}
[
  {}
]
```

After:

```json theme={null}
{
  "results": [
    {}
  ],
  "offset": 0,
  "limit": 20,
  "total": 0
}
```

### Fields Endpoint Pattern Filtering Fix

Fixed incorrect pattern matching where parent fields were incorrectly matching child field patterns. For example, a `title` field will no longer match the pattern `title.en`.

[Find more information on GitHub](https://github.com/meilisearch/meilisearch/releases/tag/v1.35.0)


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