---
title: "ElevenLabs API Conversation filters no longer accept the missing operator: 2026-09-21 | Harbyn"
description: "ElevenLabs API Conversation filters no longer accept the missing operator, announced Sep 21, 2026."
canonical: "https://harbyn.com/changes/elevenlabs/2026-09-21-api-12"
last-updated: 2026-10-03
---

# ElevenLabs API Conversation filters no longer accept the missing operator

Markdown version of <https://harbyn.com/changes/elevenlabs/2026-09-21-api-12>.

Breaking change - ElevenLabs API. medium severity. In effect.

data\_collection\_params no longer accepts the missing operator. Use an empty value to match conversations where the field was not collected. An empty value in dynamic\_variable\_params matches conversations where the variable was not set.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [ElevenLabs API](https://harbyn.com/vendors/elevenlabs.md) |
| Kind | Breaking change |
| Severity | medium |
| Status | In effect |
| Announced | Sep 21, 2026 |
| Added to Harbyn | Oct 3, 2026 |
| Lead time | No dated deadline |
| Symbols | `data_collection_params`, `dynamic_variable_params` |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses ElevenLabs API, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://elevenlabs.io/docs/changelog.md> (changelog, fetched 2026-10-03 05:42 UTC, sha256 `43059b8c565217296a65aec4778d9144268c3e8a8f519bf3cab220b206846b58`)

## Related changes

### More from ElevenLabs API

- [Crawl job max\_depth deprecated and now ignored](https://harbyn.com/changes/elevenlabs/2026-09-21-api-7.md) (Deprecation, announced Sep 21, 2026)
- [JavaScript and Python SDK v2.69.0 fix Speech Engine JWT verification](https://harbyn.com/changes/elevenlabs/2026-09-21-sdk-releases-2.md) (Behavior change, announced Sep 21, 2026)
- [Python SDK v2.69.0 play raises an error when ffplay fails](https://harbyn.com/changes/elevenlabs/2026-09-21-sdk-releases-5.md) (Behavior change, announced Sep 21, 2026)
- [Multi-context turn boundary marker](https://harbyn.com/changes/elevenlabs/2026-09-21-text-to-speech.md) (Behavior change, announced Sep 21, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: October listing attribute usage and enumeration value updates](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-2.md) (effective Oct 26, 2026)
- [Supabase: four CBC-mode TLS 1.2 cipher suites will be removed from project HTTP APIs](https://harbyn.com/changes/supabase/2026-10-12-an-outdated-subset-of-tls-1-2-ciphers-will-be-disabled-on-project-http-apis.md) (effective Nov 10, 2026)
- [Google Workspace APIs: OAuth clients must be marked as agentic to call Google Workspace MCP servers](https://harbyn.com/changes/google-workspace/2026-10-12-oauth-clients-must-be-marked-as-agentic-to-call-google-workspace-mcp-servers.md) (effective Nov 11, 2026)
- [Bitbucket Cloud API: Git Credential Manager upgrade required for OAuth 2.0 Git authentication](https://harbyn.com/changes/bitbucket/2026-10-13-git-credential-manager-upgrade-required-for-oauth-2-0-git-authentication.md) (effective Nov 30, 2026)

[All upcoming deadlines](https://harbyn.com/deadlines.md)