mcp-toolbox Releases

Expands platform support with Windows ARM64 binaries and integrates Data Lineage. It also adds remaining vector assist tools for Cloud SQL Postgres and implements a search catalog tool for Spanner.

Jun 4, 2026

This release candidate focuses on refining the Ruby language support within the project to improve code quality and usability.

Jun 4, 2026

This release candidate addresses a specific bug regarding output redirection, ensuring that debug and status messages are correctly sent to stderr when using JSON or XML formats.

Jun 3, 2026

Improves interaction with the Claude API by implementing retry logic for 5xx errors and managing documentation verbosity.

May 25, 2026

This release fixes a dependency-tree cache reset issue and adds a warning for late WebSocket adapter registration while bumping the ws dependency.

May 25, 2026

Contains critical security fixes including a new Gecko obfuscation layer and corrections for ACL bypass vulnerabilities and server stability issues.

May 23, 2026

Adds per-phase model selection capabilities for the codex executor and updates documentation to reflect this support.

May 22, 2026

Implements tool-level scopes validation for MCP auth and propagates client IP for Looker requests. It also sets up SQLCommenter for client metadata and adds multi-sql tools for Cloud SQL Admin.

May 21, 2026

Addresses a bug where snapshot mode eagerly instantiates Terminus transient indicators, which was introduced in version 11.1.20.

May 21, 2026

A major update introducing new AI models, persistent containers for Anthropic sessions, and resumable Deep Research for Gemini.

May 13, 2026

Fixes client connectivity issues when connecting to servers located behind symmetric NAT environments.

May 10, 2026

Introduces Hysteria Realms, a feature allowing users to host Hysteria servers from home or mobile networks without public IP or port forwarding.

May 10, 2026

Adds HTTPS/TLS listener support and a comprehensive Cloud Storage source with object management tools. It also introduces Knowledge Catalog search capabilities for Data Quality Scans.

May 7, 2026

This release addresses critical security vulnerabilities and stability issues, including a fix for a server OOM crash triggered by malicious QUIC packets. It also resolves compatibility issues with older nftables versions and thread safety concerns. However, it introduces a breaking change where UDP forwarding will not work between new clients and older servers.

Apr 26, 2026

Adds vector assist tools for Cloud SQL Postgres and fixes a Looker configuration YAML flattening issue. This release focuses on database vector capabilities and configuration stability.

Apr 13, 2026

This is the first stable release of the MCP Toolbox, marking a significant milestone after beta development. It introduces vector search support for Elasticsearch, refactors Looker tools into more granular components, and adds semantic search capabilities for BigQuery.

Apr 10, 2026

This release focuses on repository renaming and tooling enhancements. It adds MCP tool annotations to all tools, introduces conversational analytics for Data Agents, and adds support for Claude Code in generated skills.

Apr 8, 2026

Adds support for GitHub Copilot CLI and fixes OpenCode path consistency issues. Optimizes token usage by moving bootstrap injection to user messages.

Mar 31, 2026

This release introduces a new `enable-api` flag, generic authentication service types, and Protected Resource Metadata endpoint support. It also includes an upgrade to the documentation site.

Mar 27, 2026

Replaces slow subagent review loops with faster inline self-review checklists. Restructures the brainstorm server directory and adds Codex App compatibility.

Mar 25, 2026