--- title: "oracledb Breaking Changes on npm | Since.dev" description: "What each oracledb release removed, renamed or changed: 9 breaking changes in 1 version on npm, each with its source." canonical_url: https://since.dev/packages/npm/oracledb last_updated: 2026-10-09 --- # oracledb breaking changes Every breaking API change we have recorded in oracledb on npm: 9 breaking changes in 1 version. Below are its newest version, removals and renames first, each with its source. Newest change October 9, 2026 ## 26.0.0 9 breaking changes, first published October 9, 2026. - **Signature changed** `AdvancedQueueMessage.enqTime` Was readonly enqTime: Date; now readonly enqTime: Date | undefined. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `Connection.queryStream` Was queryStream(sql: string, bindParams: BindParameters, options: ExecuteOptions): QueryStream; now queryStream(sql: string, bindParams: BindParameters, options: QueryStreamOptions): QueryStream. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `EndUserSecurityContextOptions` Was type EndUserSecurityContextOptions = | (BaseEndUserSecurityContextOptions & {endUserToken: string; endUserName?: never; key?: never;}) | (BaseEndUserSecurityContextOptions & {endUserToken?: never; endUserName: string; key: string;})... [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `ExecuteOptions.fetchTypeHandler` Was fetchTypeHandler?: (metadata: Metadata) => FetchTypeResponse | undefined; now fetchTypeHandler?: | ((metadata: Metadata, rowsetMetaData: ReadonlyArray>) => FetchTypeResponse | undefined) | undefined. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `fetchTypeHandler` Was function fetchTypeHandler(metadata: Metadata): FetchTypeResponse | undefined; now function fetchTypeHandler(metadata: Metadata, rowsetMetaData: ReadonlyArray>): FetchTypeResponse | undefined. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `ResultSet.toQueryStream` Was toQueryStream(): Readable; now toQueryStream(options?: {rowsPerDataEvent?: number | undefined}): Readable. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `SubscribeOptions.sql` Was sql: string; now sql?: string | undefined. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `SubscriptionMessage.queries` Was queries?: | Array<{tables?: SubscriptionTable\[\];}> | undefined; now queries?: | Array<{id?: bigint | undefined; operation?: number | undefined; tables?: SubscriptionTable\[\];}> | undefined. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) - **Signature changed** `SubscriptionMessage.txId` Was txId: Buffer; now txId?: Buffer | undefined. [npmjs.com](https://www.npmjs.com/package/oracledb/v/26.0.0) ## Check your code These are the changes. To see which of them reach your code, [scan a public repository](https://since.dev/scan.md), or have your coding agent call `check_code` with your manifest or lockfile over [MCP](https://since.dev/docs.md#mcp). [The API](https://since.dev/docs.md#api) reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys. ## Put your code on continuous management. Scan a public repository now, or give your agent one line. ### See how out of date your code is. [Scan a repository](https://since.dev/scan.md). Any public GitHub repository. No sign-in. ### Tell your agent what changed since it was trained. `claude mcp add --transport http since https://api.since.dev/mcp` --- Every page on this site as Markdown: https://since.dev/sitemap.md. For agents: https://since.dev/llms.txt.