5.19 Release notes

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5.19 Release notes

Release date

Cinchy v5.19 was released on April 2, 2026.

New capabilities

Cinchy MCP Server

Cinchy v5.19 introduces the Cinchy MCP Server, a Model Context Protocol (MCP) server that lets AI assistants like Claude interact directly with your Cinchy data platform.

MCP is an open standard created by Anthropic that provides a universal interface for AI models to interact with external tools and data sources. Think of it as USB-C for AI: one protocol that connects any AI client to any data platform.

With the Cinchy MCP Server, you can use natural language in your AI assistant to query tables, insert and update data, troubleshoot data syncs, and more. All operations are authenticated under your own identity and respect Cinchy's row and column-level entitlements.

v5.19 ships with 21 tools across five categories — Core, Data, Syncs, Discovery, and Platform — covering everything from listing tables and running CQL to triggering syncs and diagnosing failures. Authentication uses OAuth 2.1 with PKCE; every tool call runs as the authenticated user, so Cinchy's row- and column-level entitlements are fully enforced.

For the full architecture diagram, complete tool catalog, security model, and Claude Desktop setup steps — including tools added in later releases — see the Cinchy MCP Server guide.

Bug fixes

Fixed an issue where the Cinchy Connections WebApi IIS package did not include the correct IBM DB2 native driver libraries for Windows. The build pipeline now produces platform-specific builds for both Linux and Windows (IIS), ensuring that DB2 data sources work correctly on IIS deployments.

Post-upgrade step for IIS customers using DB2

After upgrading Cinchy Connections to v5.19.0 on IIS, you must add the DB2 CLI driver to the system PATH and restart IIS. Run the following in an elevated PowerShell prompt on the machine hosting Cinchy Connections:

$clidriver = "<path\to\clidriver>"
[Environment]::SetEnvironmentVariable("PATH", "$clidriver\bin;$clidriver\bin\icc64;$env:PATH", "Machine")
iisreset

For example, if Cinchy Connections is installed at C:\inetpub\wwwroot\Connections:

$clidriver = "C:\inetpub\wwwroot\Connections\clidriver"
[Environment]::SetEnvironmentVariable("PATH", "$clidriver\bin;$clidriver\bin\icc64;$env:PATH", "Machine")
iisreset

warning

If the Cinchy Connections Worker is hosted on a separate machine, repeat this process on that machine as well.

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