v1.1.2 release notes (spiceai#5366)

* v1.1.2 release notes

* PM edits

* Remove extra a

* Add Tableau Connector

* Update docs/release_notes/v1.1.2.md

Co-authored-by: Phillip LeBlanc <phillip@spice.ai>

* Indent list

* Update release notes

---------

Co-authored-by: Luke Kim <80174+lukekim@users.noreply.github.com>

Author: phillipleblanc

docs/release_notes/v1.1.2.md

@@ -0,0 +1,131 @@
+# Spice v1.1.2 (Apr 14, 2025)
+
+Spice v1.1.2 improves Delta Lake Data Connector performance, introduces new Accept headers for the `/v1/sql` and `/v1/nsql` endpoints to include query metadata with results, and resolves an issue with the Snowflake Data Connector when handling wide tables (>600 columns).
+
+The official Tableau Connector for Spice.ai v0.1 has been released, making it easy to connect to both self-hosted Spice.ai and Spice Cloud instances using Tableau.
+
+## What's New in v1.1.2
+
+- **Tableau Connector for Spice.ai**: Released the initial version (v0.1) of the official Tableau Taco Connector (fully open-source), enabling data visualization and analytics in Tableau with self-hosted Spice.ai and Spice Cloud deployments.
+
+  - Official Release: [github.com/spicehq/tableau-connector/releases/tag/v0.1.0](https://github.com/spicehq/tableau-connector/releases/tag/v0.1.0)
+  - Docs: [spiceai.org/docs/clients/tableau](https://spiceai.org/docs/clients/tableau)
+  - Open Source Repository: [github.com/spiceai/tableau-connector](https://github.com/spiceai/tableau-connector)
+
+- **Delta Lake Data Connector**: Upgraded `delta_kernel` to v0.9, and optimized scan operations, reducing query execution time by up to 20% on large datasets.
+
+- **Snowflake Data Connector**: Fixed a bug that caused failures when loading tables with more than 600 columns.
+
+- **Query Metadata (SQL and NSQL)**: Added support for the `application/vnd.spiceai.sql.v1+json` Accept header on the `/v1/sql` endpoint, and the `application/vnd.spiceai.nsql.v1+json` Accept header on the `/v1/nsql` endpoint, enabling responses to include metadata such as the executed SQL query and schema alongside results.
+
+Example:
+
+```bash
+curl -XPOST "http://localhost:8090/v1/nsql" \
+  -H "Content-Type: application/json" \
+  -H "Accept: application/vnd.spiceai.nsql.v1+json" \
+  -d '{
+    "query": "What’s the highest tip any passenger gave?"
+  }' | jq
+```
+
+Example response:
+
+```json
+{
+  "row_count": 1,
+  "schema": {
+    "fields": [
+      {
+        "name": "highest_tip",
+        "data_type": "Float64",
+        "nullable": true,
+        "dict_id": 0,
+        "dict_is_ordered": false,
+        "metadata": {}
+      }
+    ],
+    "metadata": {}
+  },
+  "data": [
+    {
+      "highest_tip": 428.0
+    }
+  ],
+  "sql": "SELECT MAX(\"tip_amount\") AS \"highest_tip\"\nFROM \"spice\".\"public\".\"taxi_trips\""
+}
+```
+
+For details, see the [SQL Query API](https://spiceai.org/docs/api/HTTP/post-sql) and [NSQL API](https://spiceai.org/docs/api/HTTP/post-nsql) documentation.
+
+## Contributors
+
+- [@ewgenius](https://github.com/ewgenius)
+- [@peasee](https://github.com/peasee)
+- [@lukekim](https://github.com/lukekim)
+- [@phillipleblanc](https://github.com/phillipleblanc)
+- [@Sevenannn](https://github.com/Sevenannn)
+- [@sgrebnov](https://github.com/sgrebnov)
+- [@kczimm](https://github.com/kczimm)
+
+## Breaking Changes
+
+No breaking changes in this release.
+
+## Cookbook Updates
+
+No major cookbook additions.
+
+The [Spice Cookbook](https://spiceai.org/cookbook) now includes 65 recipes to help you get started with Spice quickly and easily.
+
+## Upgrading
+
+To upgrade to v1.1.2, use one of the following methods:
+
+**CLI**:
+
+```console
+spice upgrade
+```
+
+**Homebrew**:
+
+```console
+brew upgrade spiceai/spiceai/spice
+```
+
+**Docker**:
+
+Pull the `spiceai/spiceai:1.1.2` image:
+
+```console
+docker pull spiceai/spiceai:1.1.2
+```
+
+For available tags, see [DockerHub](https://hub.docker.com/r/spiceai/spiceai/tags).
+
+**Helm**:
+
+```console
+helm repo update
+helm upgrade spiceai spiceai/spiceai
+```
+
+## What's Changed
+
+### Dependencies
+
+- **[delta_kernel](https://crates.io/crates/delta_kernel/0.9.0):** updated to v0.9.0.
+
+### Changelog
+
+- Backport - Fix schema inference for Snowflake tables with large number of columns #5348 by [@ewgenius](https://github.com/ewgenius) in [#5350](https://github.com/spiceai/spiceai/pull/5350)
+- Upgrade `delta_kernel` to 0.9 (#5343) by [@phillipleblanc](https://github.com/phillipleblanc) in [#5356](https://github.com/spiceai/spiceai/pull/5356)
+- Add basic support for `application/vnd.spiceai.sql.v1+json` format (#5333) by [@sgrebnov](https://github.com/sgrebnov) in [#5333](https://github.com/spiceai/spiceai/pull/5333)
+- Convert DataFusion filters to Delta Kernel predicates by [@phillipleblanc](https://github.com/phillipleblanc) in [#5362](https://github.com/spiceai/spiceai/pull/5362)
+- revert to previous pdf-extract; remove test for encrypted pdf support by [@kczimm](https://github.com/kczimm) in [#5355](https://github.com/spiceai/spiceai/pull/5355)
+- Turn off `delta_kernel::log_segment` logging and refactor log filtering by [@phillipleblanc](https://github.com/phillipleblanc) in [#5367](https://github.com/spiceai/spiceai/pull/5367)
+- Extend `application/vnd.spiceai.sql.v1+json` with `schema` and `row_count` fields by [@sgrebnov](https://github.com/sgrebnov) in [#5365](https://github.com/spiceai/spiceai/pull/5365)
+- Make separate `vnd.spiceai.sql.v1+json` and `vnd.spiceai.nsql.v1+json` MIME types by [@sgrebnov](https://github.com/sgrebnov) in [#5382](https://github.com/spiceai/spiceai/pull/5382)
+
+**Full Changelog**: [v1.1.1...v1.1.2](https://github.com/spiceai/spiceai/compare/v1.1.1...v1.1.2)