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v1.6.0

yangshun/tech-interview-handbookv1.6.0Jul 1, 2026by release-please[bot]

AI Summary

This release introduces support for MCP 2026 draft specifications, adds digital signatures to Toolbox binaries, and includes new Dataplex tools alongside enhanced Looker functionality. It also fixes several bugs related to Looker and GDA clients.

Key Highlights

  • Added support for MCP 2026 draft specifications
  • Added digital signatures to Toolbox binaries for enhanced security
  • Introduced new Dataplex tools for listing and retrieving data products and assets
  • Enhanced Looker tools with support for complex filter expressions and dynamic fields

New Features

  • Support MCP 2026 draft specs
  • Add digital signature to Toolbox binaries
  • Configure object operation parameters in Cloud Storage tool
  • Support configurable parameters in Cloud Storage tool
  • Add dataplex-list-data-products tool
  • Add dataplex-get-data-product tool
  • Add dataplex-list-data-assets tool
  • Support complex filter_expression parameter in Looker queries
  • Support dynamic_fields parameter in Looker queries

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    |