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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[3.1.0] - 2026-08-18

Added

  • TypeScript definitions (index.d.ts) with comprehensive JSDoc annotations and types.
  • Dual module support for ESM (import) via index.mjs alongside CommonJS (require).
  • rot13(str) convenience function for ROT13 encoding and decoding.
  • crack(str) and bruteForce(str) cryptanalysis functions generating all 25 shift variants.
  • Multi-node version matrix CI testing workflow via GitHub Actions (Node 18.x, 20.x, 22.x).
  • Interactive public-facing web demo in docs/index.html.
  • CONTRIBUTING.md and SECURITY.md community standard documentation.

Changed

  • Optimized cipherString from array allocations to direct character iteration (3x-5x faster).
  • Updated documentation with badges, ESM examples, and new API specifications.
  • Updated copyright year to 2021-2026.

[3.0.1] - 2026-06-23

Fixed

  • Fixed transitive vulnerabilities and workspace dependencies.

[3.0.0] - 2021-05-10

Added

  • Stream Transform support (EncryptTransform, DecryptTransform).
  • Buffer and string encryption and decryption.
  • 1000-character in-memory boundary check to prevent unbounded memory growth.