Shopify Just Rebuilt Webhooks (and a Lot More) | Eytan Seidman | Spring '26 Editions

Eytan Seidman, VP of Product at Shopify, returns to the Liquid Weekly Podcast for a special Spring '26 Editions walkthrough with Karl and Taylor.

It is a full tour of what is dropping for developers: static app home extensions, the App Events API, AI Kit, Sidekick app extensions going GA, the ongoing Dev Dashboard overhaul, a rebuilt logging experience, UCP and agentic commerce, next-gen events replacing webhooks, and the shift from Managed Pricing to Shopify App Pricing. Basically a whole episode of changelog.

A must-listen for app developers, agencies, and anyone building on the Shopify platform.

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Find Eytan Online

• LinkedIn: https://www.linkedin.com/in/eytanseidman/
• X: https://x.com/eytanseidman

See the Spring '26 Editions: https://www.shopify.com/editions/spring2026

Timestamps

• (00:00) Intro snippets
• (01:03) Intros and welcoming back Eytan Seidman
• (02:17) Static app home extensions: building apps fully on Shopify
• (08:08) App Events API: observability and monitoring in Dev Dash
• (13:03) AI Kit: store auth, store execute, and how it differs from MCP
• (17:54) Sidekick app extensions GA: data and app action extensions
• (25:21) Dev Dashboard overhaul: store and team management
• (31:34) Logging overhaul: API requests, filtering, and unified logs
• (35:40) Catalog improvements and the UCP CLI
• (38:16) Building carts across merchants with UCP
• (40:35) Agent to agent purchasing and accountability
• (44:04) Next-gen events: rebuilding webhooks
• (52:08) Shopify App Pricing: usage-based pricing and meters
• (58:27) Closing: what Eytan is most excited for devs to try
• (1:00:50) Picks of the Week

Picks of the Week

• Taylor: A MagSafe power bank. After his recording died in the fourth inning of his daughter's softball game, he picked one up so he can hot-swap batteries mid-game and record full-length games start to finish. https://amzn.to/4vXCZAj
• Karl: Atkins chocolate truffles, found in the reduced aisle at Kroger. A cheap, high-protein, low-carb sweet that hits the spot if you are doing keto. https://www.kroger.com/p/atkins-endulge-dark-chocolate-truffles/0063748000511
• Eytan: Two aviation books. Flying Blind by Dominic Gates, a Seattle Times reporter, on the 737 MAX and the fall of Boeing, tracing the program from the 1960s through the late 2010s: https://www.goodreads.com/book/show/55994102-flying-blind. And The Sporty Game, an older read on the early Boeing vs Airbus competition: https://www.goodreads.com/en/book/show/312480.The_Sporty_Game