v1.6.0

NVlabs/Sanav1.6.0Jul 1, 2026by release-please[bot]

AI Summary

This release updates the MCP specification support to the 2026 draft, adds digital signatures to binaries, and expands Dataplex and Looker tooling capabilities with configurable parameters and support for complex query structures.

Key Highlights

Support for MCP 2026 draft specifications
Added digital signatures to Toolbox binaries
Enhanced Cloud Storage tools with configurable parameters
Added Dataplex list and get data product and asset tools
Enhanced Looker tools to support complex filter expressions

New Features

MCP 2026 draft specification support
Binary digital signatures
Cloud Storage configurable parameters
Dataplex list and get data products tools
Looker complex filter_expression support
Looker dynamic_fields support

Full Release Notes

## [1.6.0](https://github.com/googleapis/mcp-toolbox/compare/v1.5.0...v1.6.0) (2026-06-30)


### Features

* Support MCP 2026 draft specs ([#3544](https://github.com/googleapis/mcp-toolbox/issues/3544)) ([d12eaa8](https://github.com/googleapis/mcp-toolbox/commit/d12eaa856bad70b49ba2b7b9f2882cffbf81220f))
* **release:** Add digital signature to Toolbox binaries ([#3528](https://github.com/googleapis/mcp-toolbox/issues/3528)) ([3f0f0af](https://github.com/googleapis/mcp-toolbox/commit/3f0f0af29007929b01e95ee2caef4fd2015d5f12))
* **tool/cloud-storage:** Configure object operation parameters ([#3529](https://github.com/googleapis/mcp-toolbox/issues/3529)) ([d6dc5fe](https://github.com/googleapis/mcp-toolbox/commit/d6dc5fe8e47b585415bd5f237b2ba5d8276bc0e0))
* **tool/cloud-storage:** Support configurable parameters ([#3478](https://github.com/googleapis/mcp-toolbox/issues/3478)) ([bc2de2a](https://github.com/googleapis/mcp-toolbox/commit/bc2de2ab386e0ae8591c4b7f7faa6165b7edf8a2))
* **tools/dataplex-list-data-products:** Add dataplex-list-data-products tool ([#3337](https://github.com/googleapis/mcp-toolbox/issues/3337)) ([6dd669a](https://github.com/googleapis/mcp-toolbox/commit/6dd669ad9bad3e54206a82b3af122d845e2cdc63))
* **tools/dataplex-get-data-product:** Add dataplex-get-data-product tool ([#3499](https://github.com/googleapis/mcp-toolbox/issues/3499)) ([7ea7a09](https://github.com/googleapis/mcp-toolbox/commit/7ea7a095cc6dcf85520a8f39c4cd5a20062289f7))
* **tools/dataplex-list-data-assets:** Add dataplex-list-data-assets tool ([#3500](https://github.com/googleapis/mcp-toolbox/issues/3500)) ([182f933](https://github.com/googleapis/mcp-toolbox/commit/182f9332d67cc90d81f78b536081a7f47766d966))
* **tools/looker:** Support complex filter_expression parameter in queries ([#3494](https://github.com/googleapis/mcp-toolbox/issues/3494)) ([997fb8c](https://github.com/googleapis/mcp-toolbox/commit/997fb8c39a4cb60173bcc8543118057e77e0fce4))
* **tools/looker:** Support dynamic_fields parameter in queries ([#3507](https://github.com/googleapis/mcp-toolbox/issues/3507)) ([cd22b89](https://github.com/googleapis/mcp-toolbox/commit/cd22b893573f87c0d5406490b71ddf317a07dc7b))


### Bug Fixes

* **tools/gda:** Support mTLS and GOOGLE_API_USE_MTLS_ENDPOINT for GDA client ([#3460](https://github.com/googleapis/mcp-toolbox/issues/3460)) ([cc2a61e](https://github.com/googleapis/mcp-toolbox/commit/cc2a61e9a522136d07f7be9b8bc87916f32bf076))
* **tools/looker-conversational-analytics:** Validate explore_references shape instead of panicking ([#3531](https://github.com/googleapis/mcp-toolbox/issues/3531)) ([b67419d](https://github.com/googleapis/mcp-toolbox/commit/b67419d34bfc437b6eace5abaaf02ae1339d83ee))
* **tool/looker-create-view-from-table:** Correct Looker API payload structure ([#3515](https://github.com/googleapis/mcp-toolbox/issues/3515)) ([18c539c](https://github.com/googleapis/mcp-toolbox/commit/18c539c5935c2a496e7e5da68241b4307d8f3e6e))

| **OS/Architecture**                                                                                       | **Description**                                                                                                          | **SHA256 Hash**                                                     |
| --------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------- |
| [linux/amd64](https://storage.googleapis.com/mcp-toolbox-for-databases/v1.6.0/linux/amd64/toolbox) ([Signature](https://storage.googleapis.com/mcp-toolbox-for-databases/v1.6.0/linux/amd64/toolbox.asc)) | For **Linux** systems running on **Intel/AMD 64-bit processors**.                                                        | 0cd6fa1773926a37e55c803542f16ef621eaea38b015ec9778dfaae9f30da302    |
| [darwin/arm64](https://storage.googleapis.com/mcp-toolbox-for-databases/v1.6.0/darwin/arm64/toolbox)      | For **macOS** systems running on **Apple Silicon** (M1, M2, M3, etc.) processors.                                        | feb567fb8416504004ff99acd4661278a88d70cc137681f6535a5e54469c6594    |
| [darwin/amd64](https://storage.googleapis.com/mcp-toolbox-for-databases/v1.6.0/darwin/amd64/toolbox)      | For **macOS** systems running on **Intel processors**.                                                                   | fbb5af6b170431edb08741828a2581f9ee8548dd37c3e8222a3c2722f0007f32    |
| [windows/amd64](https://storage.googleapis.com/mcp-toolbox-for-databases/v1.6.0/windows/amd64/toolbox.exe) | For **Windows** systems running on **Intel/AMD 64-bit processors**.                                                      | 3be7e587c86dd9dbdb593a380396f399358c179ce37aed3045b4c8bf42569394    |
| [windows/arm64](https://storage.googleapis.com/mcp-toolbox-for-databases/v1.6.0/windows/arm64/toolbox.exe) | For **Windows** systems running on **ARM 64-bit processors**.                                                            | 3c6345114032a0671a5b66764673124ec4c27b5b41d1816ea15ac8afb5ca7cdc    |