---
title: "LangSmith Webhook retries stop after prolonged delivery failures: 2026-10-21 | Harbyn"
description: "LangSmith Webhook retries stop after prolonged delivery failures, announced Oct 21, 2026."
canonical: "https://harbyn.com/changes/langsmith/2026-10-21-webhook-retries-stop-after-prolonged-delivery-failures"
last-updated: 2026-10-25
---

# LangSmith Webhook retries stop after prolonged delivery failures

Markdown version of <https://harbyn.com/changes/langsmith/2026-10-21-webhook-retries-stop-after-prolonged-delivery-failures>.

Behavior change - LangSmith. low severity. In effect.

Destinations that fail every delivery for more than 24 hours receive each event once without retries. Retries resume after the next successful delivery.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [LangSmith](https://harbyn.com/vendors/langsmith.md) |
| Kind | Behavior change |
| Severity | low |
| Status | In effect |
| Announced | Oct 21, 2026 (undated by the vendor; the day it first appeared) |
| Added to Harbyn | Oct 25, 2026 |
| Lead time | No dated deadline |
| 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 LangSmith, 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://docs.langchain.com/langsmith/changelog> (changelog, fetched 2026-10-21 14:31 UTC, sha256 `d39a828b21bd46938346d79499bbe68803acdbe628779a519db84c2fa1348e09`)

## Related changes

### More from LangSmith

- [A2A SendMessage supports non-blocking configuration](https://harbyn.com/changes/langsmith/2026-10-21-a2a-sendmessage-supports-non-blocking-configuration.md) (Behavior change, announced Oct 21, 2026)
- [BYOC sandboxes can use the full node](https://harbyn.com/changes/langsmith/2026-10-21-byoc-sandboxes-can-use-the-full-node.md) (Behavior change, announced Oct 21, 2026)
- [Context Hub webhook limit removed](https://harbyn.com/changes/langsmith/2026-10-21-context-hub-webhook-limit-removed.md) (Behavior change, announced Oct 21, 2026)
- [Engine permissions are split](https://harbyn.com/changes/langsmith/2026-10-21-engine-permissions-are-split.md) (Behavior change, announced Oct 21, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: ORDER\_CHANGE notifications add PreFulfillmentStatusChange for Amazon Autos](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-3.md) (effective Oct 28, 2026)
- [BigCommerce: 301 redirects will apply only to storefront channels](https://harbyn.com/changes/bigcommerce/2026-10-07-301-redirects-now-apply-to-storefront-channels-only.md) (effective Nov 10, 2026)
- [GitHub: Secret scanning audit log business field changes to enterprise slug](https://harbyn.com/changes/github/2026-10-20-updates-to-github-secret-scanning-7.md) (effective Nov 12, 2026)
- [Jira / Atlassian Cloud: New IP address ranges in use from January 1, 2027](https://harbyn.com/changes/atlassian-jira/2026-10-16-atlassian-cloud-adds-new-ip-address-ranges.md) (effective Jan 1, 2027)

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