Changelog

All notable changes to Strata are documented in this file.

January 15, 2026

v0.4.0 — Developer Ergonomics & Integration Reference

Added

• Rust Value construction macros null!, bool!, int!, string!, bytes!, list!, map!

• Nested macro construction with last-write-wins map semantics

• JavaScript Value factory upgrades (additive only)

• Primary Value factory (legacy V remains supported)

• Ergonomic JS helpers for lists, maps, and bytes

• Integration Reference documentation section

• Canonical API and integration examples for Rust and JavaScript

• Explicit strictness and footgun documentation

• Additional unit tests enforcing DX behavior

Guarantees

• Canonical encoding unchanged

• Hashing semantics unchanged (BLAKE3-256 over canonical bytes)

• Value model unchanged

• Decode behavior unchanged

• Cross-language determinism preserved

• All v0.3.x vectors remain valid and unchanged

Not Changed

• Binary layout and tags

• Canonical byte output

• Hash output for any existing value

• Decode acceptance or rejection rules

• Northstar T1, T2, T3 behavior

Notes

• This is a DX-only minor release

• No canonical truth was modified

• No migration required

• Same values → same bytes → same hashes

• Any future canonical change requires a new MINOR version and a new Northstar

January 4, 2026

v0.3.0 - Cross-Language Determinism

Added

• JavaScript implementation (strata-js)

  • TypeScript-first, Node 20+ runtime

  • Full support for the v1 value model

  • BigInt-backed integer semantics

  • Canonical encoder and strict decoder

  • BLAKE3-256 hashing over canonical bytes

  • Strata Text (.st) parser

  • CLI with compile, decode, hash, and fmt commands

• Cross-language golden vector enforcement

  • JavaScript consumes vectors directly from /vectors

  • Positive vectors enforced byte-for-byte

  • Negative vectors enforced with exact error kind and offset

• Northstar T1 – Wire Determinism

  • Rust → JS envelope transport

  • Canonical bytes and hashes must match exactly

• Northstar T2 – Raw Wire Determinism

  • Raw .scb bytes over HTTP

  • No helpers, no framing, no normalization

• Northstar T3 – Framed Streaming Determinism

  • Streaming transport with explicit framing

  • Arbitrary chunking without hash instability

• CI enforcement for all Northstar tests

  • Rust CI

  • JS CI

  • Northstar T1, T2, T3 block merges on failure

Guarantees

• Rust and JavaScript produce identical canonical bytes

• Rust and JavaScript produce identical hashes

• Decoding behavior matches exactly across languages

• All v1 and v2 vectors remain valid and unchanged

Not Changed

• Canonical encoding rules

• Hashing semantics

• Value model

• Binary layout and tags

• Decode failure conditions

Notes

• This release introduces parity and enforcement tooling only

• No canonical truth was modified

• Any future change to bytes, hashes, or semantics requires a new MINOR version and a new Northstar