docs: v1.40 version bumps

_includes/feature-notes/rq-4bit.mdx

@@ -1,5 +1,5 @@
-:::caution Preview — added in `v1.39.0`
+:::info Generally available as of `v1.40`
 
-**4-bit Rotational quantization (RQ)** for the **HNSW vector index** was added in **`v1.39.0`** as a preview feature. The API may change in future releases.
+**4-bit Rotational quantization (RQ)** for the **HNSW vector index** is generally available as of **`v1.40`**. It was introduced in **`v1.39`** as a preview.
 
 :::

_includes/release-history.md

@@ -2,17 +2,18 @@ This table lists recent Weaviate Database versions and corresponding client libr
 
 | Weaviate Database <br/><small>([GitHub][cWeaviate])</small>         | First <br/>release date |                  Python <br/><small>([GitHub][cPython])</small>                   |   TypeScript/ <br/>JavaScript <br/><small>([GitHub][cTypeScript])</small>    |                   Go <br/><small>([GitHub][cGo])</small>                    |             Java <br/><small>([GitHub][cJava])</small>              |                   C# <br/><small>([GitHub][cCSharp])</small>                    |
 | :------------------------------------------------------------------ | :---------------------- | :-------------------------------------------------------------------------------: | :--------------------------------------------------------------------------: | :-------------------------------------------------------------------------: | :-----------------------------------------------------------------: | :-----------------------------------------------------------------------------: |
+| [1.40.x](https://github.com/weaviate/weaviate/releases/tag/v1.40.0) | -                       |                                         -                                         |                                      -                                       |                                      -                                      |                                  -                                  |                                        -                                        |
 | [1.39.x](https://github.com/weaviate/weaviate/releases/tag/v1.39.0) | 2026-08-04              | [4.23.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.23.0) |                                      -                                       |                                      -                                      | [6.3.1](https://github.com/weaviate/java-client/releases/tag/6.3.1) |      [1.2.0](https://github.com/weaviate/csharp-client/releases/tag/1.2.0)      |
 | [1.38.x](https://github.com/weaviate/weaviate/releases/tag/v1.38.0) | 2026-06-05              | [4.22.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.22.0) | [3.14.x](https://github.com/weaviate/typescript-client/releases/tag/v3.14.0) |                                     -                                      | [6.3.0](https://github.com/weaviate/java-client/releases/tag/6.3.0) |      [1.2.0](https://github.com/weaviate/csharp-client/releases/tag/1.2.0)      |
 | [1.37.x](https://github.com/weaviate/weaviate/releases/tag/v1.37.0) | 2026-04-16              | [4.21.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.21.0) | [3.13.x](https://github.com/weaviate/typescript-client/releases/tag/v3.13.0) | [5.7.3](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.7.3) | [6.2.0](https://github.com/weaviate/java-client/releases/tag/6.2.0) |      [1.1.1](https://github.com/weaviate/csharp-client/releases/tag/1.1.1)      |
 | [1.36.x](https://github.com/weaviate/weaviate/releases/tag/v1.36.0) | 2026-02-24              | [4.20.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.20.0) | [3.12.x](https://github.com/weaviate/typescript-client/releases/tag/v3.12.0) | [5.7.x](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.7.0) | [6.1.0](https://github.com/weaviate/java-client/releases/tag/6.1.0) |      [1.0.1](https://github.com/weaviate/csharp-client/releases/tag/1.0.1)      |
-| [1.35.x](https://github.com/weaviate/weaviate/releases/tag/v1.35.0) | 2025-12-17              | [4.19.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.19.0) | [3.11.x](https://github.com/weaviate/typescript-client/releases/tag/v3.11.0) | [5.6.x](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.6.0) | [6.0.0](https://github.com/weaviate/java-client/releases/tag/6.0.0) |      [1.0.0](https://github.com/weaviate/csharp-client/releases/tag/1.0.0)      |
 
 <details>
     <summary>Older releases</summary>
 
 | Weaviate Database <br/><small>([GitHub][cWeaviate])</small>         | First <br/>release date |                  Python <br/><small>([GitHub][cPython])</small>                   |  TypeScript/ <br/>JavaScript <br/><small>([GitHub][cTypeScript])</small>   |                    Go <br/><small>([GitHub][cGo])</small>                     |                                                 Java <br/><small>([GitHub][cJava])</small>                                                  |
 | :------------------------------------------------------------------ | :---------------------- | :-------------------------------------------------------------------------------: | :------------------------------------------------------------------------: | :---------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------------------------------------------------: |
+| [1.35.x](https://github.com/weaviate/weaviate/releases/tag/v1.35.0) | 2025-12-17              | [4.19.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.19.0) | [3.11.x](https://github.com/weaviate/typescript-client/releases/tag/v3.11.0) |  [5.6.x](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.6.0)  |                                     [6.0.0](https://github.com/weaviate/java-client/releases/tag/6.0.0)                                     |
 | [1.34.x](https://github.com/weaviate/weaviate/releases/tag/v1.34.0) | 2025-11-05              | [4.18.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.18.0) | [3.10.x](https://github.com/weaviate/typescript-client/releases/tag/v3.10.0) |  [5.6.x](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.6.0)  |                                     [6.0.0](https://github.com/weaviate/java-client/releases/tag/6.0.0)                                     |
 | [1.33.x](https://github.com/weaviate/weaviate/releases/tag/v1.33.0) | 2025-09-25              | [4.17.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.17.0) | [3.9.x](https://github.com/weaviate/typescript-client/releases/tag/v3.9.0) |  [5.5.x](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.5.0)  |                                     [5.5.x](https://github.com/weaviate/java-client/releases/tag/5.5.0)                                     |
 | [1.32.x](https://github.com/weaviate/weaviate/releases/tag/v1.32.0) | 2025-07-14              | [4.16.x](https://github.com/weaviate/weaviate-python-client/releases/tag/v4.16.0) | [3.8.x](https://github.com/weaviate/typescript-client/releases/tag/v3.8.0) |  [5.3.x](https://github.com/weaviate/weaviate-go-client/releases/tag/v5.3.0)  |                                     [5.4.x](https://github.com/weaviate/java-client/releases/tag/5.4.0)                                     |

docs/deploy/configuration/env-vars/index.md

@@ -36,7 +36,7 @@ import APITable from '@site/src/components/APITable';
 | `CORS_ALLOW_HEADERS` | Value of the `Access-Control-Allow-Headers` response header on the REST API, which controls the request headers a browser may send cross-origin. The default is the long list of headers Weaviate itself reads, including `Content-Type`, `Authorization` and the per-provider API-key headers. Default: the built-in header list | `string - comma separated names` | `Content-Type, Authorization` |
 | `CORS_ALLOW_METHODS` | Value of the `Access-Control-Allow-Methods` response header on the REST API, which controls the HTTP methods a browser may use cross-origin. Default: `*` | `string - comma separated names` | `GET, POST, OPTIONS` |
 | `CORS_ALLOW_ORIGIN` | Value of the `Access-Control-Allow-Origin` response header on the REST API, which controls the origins a browser may call Weaviate from. Set this to reach Weaviate directly from browser code on a specific site. Default: `*` | `string` | `https://example.com` |
-| `DEFAULT_QUANTIZATION` | Default quantization technique - can be overridden by the quantization method specified in the collection definition. Available values: `rq-8`, `rq-4`, `rq-1`, `pq`, `bq`, `sq` and `none`. Default: `none`.<br/><br/>Note: If the selected quantization method isn't supported for the index type of a collection (for example PQ & SQ aren't supported for the flat index, and `rq-4` is supported for the HNSW index only), the quantization won't be applied to that collection.<br/><br/>Added in `v1.33`. `rq-4` added in `v1.39` as a preview. | `string` | `rq-8` |
+| `DEFAULT_QUANTIZATION` | Default quantization technique - can be overridden by the quantization method specified in the collection definition. Available values: `rq-8`, `rq-4`, `rq-1`, `pq`, `bq`, `sq` and `none`. Default: `none`.<br/><br/>Note: If the selected quantization method isn't supported for the index type of a collection (for example PQ & SQ aren't supported for the flat index, and `rq-4` is supported for the HNSW index only), the quantization won't be applied to that collection.<br/><br/>Added in `v1.33`. `rq-4` generally available as of `v1.40`; introduced in `v1.39` as a preview. | `string` | `rq-8` |
 | `DEFAULT_SHARDING_COUNT` | Default `desiredCount` for new single-tenant collections, used when the collection definition does not specify one. An explicit `desiredCount` in the class creation request still takes precedence. A value of `0` (default) uses the cluster node count. Multi-tenant collections are unaffected. Must be `<= 512`. Runtime-configurable. Default: `0`<br/>Added in `v1.37` | `string - number` | `12` |
 | `DEFAULT_VECTOR_INDEX` | Default vector index type for new collections (and named vectors), used when the collection definition does not specify one. An explicit `vectorIndexType` in the collection definition still takes precedence. Available values: `hnsw`, `flat`, `dynamic`, and `hfresh`. Runtime-configurable. Default: `hnsw`<br/>Added in `v1.37.3` | `string` | `flat` |
 | `DEFAULT_VECTORIZER_MODULE` | Default vectorizer module - can be overridden by the vectorizer in the collection definition. | `string` | `text2vec-contextionary` |

docs/weaviate/model-providers/_includes/provider.connect.py

@@ -63,6 +63,10 @@
 # Recommended: save sensitive data as environment variables
 jinaai_key = os.getenv("JINAAI_API_KEY")
 # END JinaAIInstantiation
+# START MetaInstantiation
+# Recommended: save sensitive data as environment variables
+meta_key = os.getenv("META_APIKEY")
+# END MetaInstantiation
 # START MistralInstantiation
 # Recommended: save sensitive data as environment variables
 mistral_key = os.getenv("MISTRAL_API_KEY")
@@ -147,6 +151,10 @@
 # START JinaAIInstantiation
     "X-JinaAI-Api-Key": jinaai_key,
 # END JinaAIInstantiation
+# START MetaInstantiation
+    "X-Meta-Api-Key": meta_key,
+    # "X-Meta-Baseurl": "https://api.meta.ai",  # Optional; for providing a custom base URL
+# END MetaInstantiation
 # START MistralInstantiation
     "X-Mistral-Api-Key": mistral_key,
 # END MistralInstantiation

docs/weaviate/model-providers/_includes/provider.generative.py

@@ -856,6 +856,143 @@ def import_data():
 # clean up
 client.collections.delete("DemoCollection")
 
+# ---------------------------------------------------------------------------
+# Meta generative integration (generative-meta).
+#
+# These snippets are documented AHEAD of Python client support:
+# `Configure.Generative.meta()` and `GenerativeConfig.meta()` do not yet exist
+# in the released weaviate-client (pinned in pyproject.toml). The blocks below
+# are DISPLAY-ONLY — they are rendered in the docs via FilteredTextBlock (with
+# `language="pyindent"`, which strips the 4-space guard indent) and are
+# intentionally kept out of the test runner's allowlist in tests/test_python.py.
+# The `if META_CLIENT_AVAILABLE:` guard is a belt-and-suspenders measure so that
+# even if this file is ever executed end-to-end, the not-yet-released `meta()`
+# calls can never run.
+# TODO: set META_CLIENT_AVAILABLE = True and drop `pyindent` once the
+# weaviate-client ships Configure.Generative.meta() / GenerativeConfig.meta().
+# ---------------------------------------------------------------------------
+META_CLIENT_AVAILABLE = False
+
+if META_CLIENT_AVAILABLE:
+    # START BasicGenerativeMeta
+    from weaviate.classes.config import Configure
+
+    client.collections.create(
+        "DemoCollection",
+        # highlight-start
+        generative_config=Configure.Generative.meta()
+        # highlight-end
+        # Additional parameters not shown
+    )
+    # END BasicGenerativeMeta
+
+    # clean up
+    client.collections.delete("DemoCollection")
+
+    # START GenerativeMetaCustomModel
+    from weaviate.classes.config import Configure
+
+    client.collections.create(
+        "DemoCollection",
+        # highlight-start
+        generative_config=Configure.Generative.meta(
+            model="muse-spark-1.2"
+        )
+        # highlight-end
+        # Additional parameters not shown
+    )
+    # END GenerativeMetaCustomModel
+
+    # clean up
+    client.collections.delete("DemoCollection")
+
+    # START FullGenerativeMeta
+    from weaviate.classes.config import Configure
+
+    client.collections.create(
+        "DemoCollection",
+        # highlight-start
+        generative_config=Configure.Generative.meta(
+            # # These parameters are optional
+            # model="muse-spark-1.2",
+            # temperature=0.7,  # 0.0 to 2.0
+            # top_p=0.9,  # 0.0 to 1.0
+            # max_tokens=500,  # 1 or higher; no upper limit
+            # frequency_penalty=0.0,  # -2.0 to 2.0
+            # presence_penalty=0.0,  # -2.0 to 2.0
+            # reasoning_effort="low",  # One of "none", "minimal", "low", "medium", "high", "xhigh"
+            # base_url="https://api.meta.ai",
+        )
+        # highlight-end
+    )
+    # END FullGenerativeMeta
+
+    # clean up
+    client.collections.delete("DemoCollection")
+    import_data()
+
+    # START RuntimeModelSelectionMeta
+    from weaviate.classes.generate import GenerativeConfig
+
+    collection = client.collections.use("DemoCollection")
+    response = collection.generate.near_text(
+        query="A holiday film",
+        limit=2,
+        grouped_task="Write a tweet promoting these two movies",
+        # highlight-start
+        generative_provider=GenerativeConfig.meta(
+            model="muse-spark-1.1",
+            # # These parameters are optional
+            # temperature=0.7,
+            # top_p=0.9,
+            # max_tokens=500,
+            # frequency_penalty=0.0,
+            # presence_penalty=0.0,
+            # reasoning_effort="low",
+            # base_url="https://api.meta.ai",
+        ),
+        # Additional parameters not shown
+        # highlight-end
+    )
+    # END RuntimeModelSelectionMeta
+
+    # START WorkingWithImagesMeta
+    import base64
+    import requests
+    from weaviate.classes.generate import GenerativeConfig, GenerativeParameters
+
+    src_img_path = "https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Winter_forest_silver.jpg/960px-Winter_forest_silver.jpg"
+    base64_image = base64.b64encode(requests.get(src_img_path).content).decode('utf-8')
+
+    prompt = GenerativeParameters.grouped_task(
+        # highlight-start
+        prompt="Which movie is closest to the image in terms of atmosphere",
+        images=[base64_image],      # A list of base64 encoded strings of the image bytes
+        # image_properties=["img"], # Properties containing images in Weaviate
+        # highlight-end
+    )
+
+    collection = client.collections.use("DemoCollection")
+    response = collection.generate.near_text(
+        query="Movies",
+        limit=5,
+        # highlight-start
+        grouped_task=prompt,
+        # highlight-end
+        generative_provider=GenerativeConfig.meta(
+            max_tokens=1000
+        ),
+    )
+
+    # Print the source property and the generated response
+    for o in response.objects:
+        print(f"Title property: {o.properties['title']}")
+    print(f"Grouped task result: {response.generative.text}")
+    # END WorkingWithImagesMeta
+
+    # clean up
+    client.collections.delete("DemoCollection")
+
 # START GenerativeDeepseekCustomModel
 from weaviate.classes.config import Configure
 

docs/weaviate/model-providers/index.md

@@ -30,6 +30,7 @@ This enables an enhanced developed experience, such as the ability to:
 | [Google](./google/index.md) | [Text](./google/embeddings.md), [Multimodal](./google/embeddings-multimodal.md) | [Text](./google/generative.md) | - |
 | [Hugging Face](./huggingface/index.md) | [Text](./huggingface/embeddings.md) | - | - |
 | [Jina AI](./jinaai/index.md) | [Text](./jinaai/embeddings.md), [Multimodal](./jinaai/embeddings-multimodal.md) | - | [Reranker](./jinaai/reranker.md) |
+| [Meta](./meta/index.md) | - | [Text](./meta/generative.md) | - |
 | [Mistral](./mistral/index.md) | [Text](./mistral/embeddings.md) | [Text](./mistral/generative.md) | - |
 | [Morph](./morph/index.md) | [Text](./morph/embeddings.md) | - | - |
 | [NVIDIA](./nvidia/index.md) | [Text](./nvidia/embeddings.md), [Multimodal](./nvidia/embeddings-multimodal.md) | [Text](./nvidia/generative.md) | [Reranker](./nvidia/reranker.md) |

docs/weaviate/model-providers/meta/_category_.json

@@ -0,0 +1,4 @@
+{
+    "label": "Meta",
+    "position": 244
+}