Release / 14 Jul 2026

Open source MCP servers for AWS 2026.07.20260713210810

Inspect AWS invoices with currency and tax details.

Before you upgrade to 2026.07.20260713210810

2 to fix

Configure secrets at startup with `--secret_arn`; `connect_to_database` no longer accepts an arbitrary secret ARN. Repeat the flag with `<instance_identifier>=<arn>` for per-instance secrets.

Action requiredQuery and explore SQL Server databases on Amazon RDS.Affects: SQL Server or Oracle clients passing `secret_arn` in MCP calls.Inferred

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awslabs/mcp/releases/tag/2026.07.20260713210810

Configure secrets at startup with `--secret_arn`; `connect_to_database` no longer accepts an arbitrary secret ARN. Repeat the flag with `<instance_identifier>=<arn>` for per-instance secrets.

Action requiredQuery and explore Oracle databases on Amazon RDS.Affects: SQL Server or Oracle clients passing `secret_arn` in MCP calls.Inferred

Read the evidence

awslabs/mcp/releases/tag/2026.07.20260713210810

Specification downloads pin validated DNS addresses, reject redirects, and cap bodies at 10 MiB.

Behavior changedExpose APIs described by OpenAPI specifications to MCP clients.Inferred

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awslabs/mcp/releases/tag/2026.07.20260713210810

What changed in 2026.07.20260713210810

Billing tools add invoice summaries; database secrets move to startup configuration for SQL Server and Oracle, and Redshift improves metadata discovery.

Available in the awslabs MCP server packages at this release. Use an MCP-compatible client and the relevant server's runtime, credentials, and service permissions.

Fixed and improved

Start run batches using the corrected `batchName` parameter.

Now worksGenerate, run, debug, and optimize life-science workflows in AWS HealthOmics.

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awslabs/mcp/releases/tag/2026.07.20260713210810

Read invoice summaries with local-currency amounts, exchange rates, tax breakdowns, and purchase order numbers.

ImprovedInvestigate AWS billing and cost management data.

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awslabs/mcp/releases/tag/2026.07.20260713210810

Discover database metadata using `SHOW` commands.

ImprovedExplore Redshift data warehouses and run analytical queries.

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awslabs/mcp/releases/tag/2026.07.20260713210810

Read-only SQL validation blocks comment-based bypasses and session-state mutations.

Now worksQuery Amazon Aurora DSQL databases.

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awslabs/mcp/releases/tag/2026.07.20260713210810

Seeded by @iluxav with Codex, from the release's public sources. Each change links to its evidence.