---
title: "Shopify Exclusive timestamp filters exclude the full second: 2026-10-19 | Harbyn"
description: "Shopify Exclusive timestamp filters exclude the full second, announced Oct 19, 2026."
canonical: "https://harbyn.com/changes/shopify/2026-10-19-exclusive-timestamp-filters-exclude-the-full-second"
last-updated: 2026-10-25
---

# Shopify Exclusive timestamp filters exclude the full second

Markdown version of <https://harbyn.com/changes/shopify/2026-10-19-exclusive-timestamp-filters-exclude-the-full-second>.

Behavior change - Shopify. medium severity. In effect.

In API version 2026-10, an exclusive lower bound on a timestamp without fractional seconds starts after the end of that second. Records later in the same second are no longer returned, and the exclusive and inclusive bounds no longer overlap.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Shopify](https://harbyn.com/vendors/shopify.md) |
| Kind | Behavior change |
| Severity | medium |
| Status | In effect |
| Announced | Oct 19, 2026 |
| Added to Harbyn | Oct 25, 2026 |
| Lead time | No dated deadline |
| Symbols | `2026-10`, `created_at` |
| Vendor page | <https://shopify.dev/changelog/exclusive-timestamp-filters> |
| 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 Shopify, 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://shopify.dev/changelog/feed.xml> (changelog, fetched 2026-10-22 14:32 UTC, sha256 `1d6bba3ec2170f7d3658ec189dfddd1607ca00afdff015d7caff5083dbc100d1`)

## Related changes

### More from Shopify

- [Checkout footer visibility applies only to merchant-configurable content](https://harbyn.com/changes/shopify/2026-10-15-checkout-footer-visibility-now-applies-to-merchant-configurable-content.md) (Behavior change, announced Oct 15, 2026)
- [Unchanged cart operations no longer trigger carts/update webhooks](https://harbyn.com/changes/shopify/2026-10-12-cart-updates-that-result-in-no-changes-to-the-cart-no-longer-trigger-carts-updat.md) (Behavior change, announced Oct 12, 2026)
- [Global Catalog REST API stops serving traffic on November 2, 2026](https://harbyn.com/changes/shopify/2026-10-09-global-catalog-rest-api-stops-serving-traffic-on-november-2-2026.md) (Retirement, effective Nov 2, 2026)
- [Product view events include currency](https://harbyn.com/changes/shopify/2026-10-08-hydrogen-developer-preview-update-october-8-2026.md) (Behavior change, announced Oct 8, 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)