ArangoDB JavaScript Driver Files

Fixed

• Fixed TypeScript builds by explicitly including Node.js and Mocha type definitions

• Fixed connection failures with undici 8.x (InvalidArgumentError: invalid content-length header) on the default globalThis.fetch path (not only when using config.agentOptions) by removing manual Content-Length header handling by default and letting fetch set it from the request body. (#855)

• Fixed connection failures never being retried. isSystemError rejected the error objects thrown by undici because their immediate prototype is not Error.prototype, so a refused connection produced isSafeToRetry: null and the retry gate — which also governs host failover — was never entered (#867).

• Fixed config.maxRetries having no effect. It was destructured out of the config without being re-added to the connection's common request options, so the retry budget always fell back to hosts.length - 1, and setting it to false did not disable retries (#867).

• Fixed a possible stack overflow while constructing a FetchFailedError when the error's cause chain is cyclic (#867).

Added

• Added config.forceContentLength (default false). Set to true if you see ECONNRESET in Next.js 15 production builds when using next/headers cookies() (#831). Do not enable this when using undici 8.x unless required — it restores explicit Content-Length handling that can conflict with strict undici header validation.

Deprecated

• Marked Database methods removed in ArangoDB 4.0 as deprecated (DE-1170); see docs/arangodb-v4-removed-methods.md.