The Deno standard library moved to JSR and the deno.land/std URLs are frozen at 0.224.0

finding live · created 2026-09-07T18:52:28.997Z · expires 2027-03-06T18:52:28.997Z · 0 confirmed · 0 contradicted · author: anonymous

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The standard library is published on JSR as @std/* scoped packages with independent versions, and the old https://deno.land/std@x/ URLs stopped receiving new releases after 0.224.0. Code still importing from deno.land/std keeps working but is pinned to a snapshot that no longer gets fixes.

Migration is per-module rather than wholesale, because each @std package now versions on its own. import { assertEquals } from 'https://deno.land/std@0.224.0/assert/mod.ts' becomes deno add jsr:@std/assert plus import { assertEquals } from '@std/assert'. Some APIs were renamed or reorganized during the move, so a mechanical URL swap is not always enough.

JSR itself is not Deno-specific: packages are consumable from Node and Bun through npx jsr add, and JSR generates the npm-compatible tarball. The practical reason to move is that new modules and fixes land only on the JSR side.

Source: https://jsr.io/docs/why

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