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JavaScript SDK changelog

[ reference ][ updated 2026-09-17 ][ confidence high ][ jev-1.13.0 ][ js sdk 0.6.0 ]#javascript · sdk · changelog · versions · npm

TL;DR Two public releases. 0.5.7 was the initial public release; 0.6.0 (2026-09-15, the current version) has exactly one breaking change: Score.criteria is now an ordered sequence instead of a dictionary keyed by integers. If you are on 0.5.7, rewrite score("...", {0: "low", 1: "high"}) as score("...", ["low", "high"]).

Releases

Version Changelog date npm publish date Nature
0.0.0-bootstrap.0 not in any changelog 2026-09-12 registry placeholder; not a usable release
0.5.7 2026-09-11 2026-09-12 initial public release
0.6.0 2026-09-15 2026-09-15 breaking: score criteria become an ordered sequence

The changelog dates come from the upstream changelog (identical in raw/docs/sdk__javascript__changelog.md and raw/github/typesafe-sdk-js/docs/changelog.md); the npm publish dates are from the registry listing recorded during ingestion. The two disagree for 0.5.7: the changelog says 2026-09-11, npm records the publish on 2026-09-12. Treat 2026-09-11 as the release-tag date and 2026-09-12 as the registry timestamp.

0.0.0-bootstrap.0 appears only in the npm version list; it has no changelog entry, no git tag in the ingested repository, and is the conventional placeholder used to claim a package name before the first real publish (inferred).

v0.6.0 (2026-09-15)

Upstream changelog, verbatim:

Breaking changes

  • accept Score.criteria as an ordered sequence instead of a dictionary keyed by integers

That is the entire entry. Nothing else is listed as changed, added, or fixed.

What it means in the JS SDK

ScoreCriteria in 0.6.0 is a tuple type with a two-entry minimum:

type ScoreCriteria = readonly [EntryType, EntryType, ...EntryType[]];

and score() rejects a map at runtime:

if (!Array.isArray(criteria)) {
  throw new TypeSafeError(
    "Score criteria must be a list of descriptions indexed by score from zero, not a map.",
  );
}

validateQuestions, which systemOne() runs before every request, repeats the check per question and also enforces the minimum length:

Migration:

// 0.5.7 — dictionary keyed by integers
const urgency = score("How urgent is this ticket?", {
  0: "can wait",
  1: "this week",
  2: "today",
  3: "right now",
});

// 0.6.0 — ordered sequence, index 0 first
const urgency = score("How urgent is this ticket?", [
  "can wait",
  "this week",
  "today",
  "right now",
]);

The score keys are unchanged — index 0 is still the lowest rubric level — so ScoreResponse.score, .legend and .probabilities keep the same meaning. What improves is inference: with a literal array and the const type parameter on score(), ScoreOf<T> narrows to "0" | "1" | "2" | "3" instead of number, so legend["3"] and probabilities["0"] are typed. See JavaScript SDK interfaces and type aliases.

Nothing else in the public surface is documented as changed. VERSION was bumped to "0.6.0" in src/version.ts (kept in sync with package.json and enforced by npm run check:version), and jsr.json carries the same 0.6.0.

v0.5.7 (2026-09-11)

Upstream changelog, verbatim:

This is the initial public release of TypeSafe JavaScript and TypeScript SDK. Learn more in the documentation.

No feature list is published for 0.5.7. Everything documented on JavaScript/TypeScript SDK: install, client, choice/score/noul describes 0.6.0; the only 0.5.7 difference recorded anywhere in raw/ is the score-criteria shape.

The jump straight to 0.5.7 for a first public release (rather than 0.1.0) is not explained in any source.

Repository state

Fact Value
Repo https://github.com/typesafe-ai/typesafe-sdk-js
Ingested commit 66880ccded6cb642dc1809620c2b108c33730214
Commit date 2026-09-15
Commit subject Release v0.6.0
package.json version 0.6.0
jsr.json version 0.6.0
src/version.ts export const VERSION = "0.6.0";
License MIT
Language TypeScript

The ingested checkout contains a single commit (Release v0.6.0), so per-commit history before 0.6.0 is not available locally; the repository is listed as last pushed 2026-09-15.

Changelogs are generated with git-cliff (pinned at 2.13.1 in devDependencies), which is why the docs site changelog and docs/changelog.md in the repo are byte-identical apart from bullet markers (* vs -).

Version policy notes

Related

Sources