generated: '2026-07-21'
method: searched
source: https://github.com/unisonweb/unison/releases
scheme: semver (release/x.y.z tags for UCM + language releases)
current_version: 1.3.0
current_release_date: '2026-05-20'
notes: >
  Unison Computing versions the Unison language and UCM (Unison Codebase
  Manager) together through dated GitHub releases on unisonweb/unison.
  A rolling trunk-build prerelease tracks development builds.
entries:
  - version: 1.3.0
    date: '2026-05-20'
    breaking: false
    highlights:
      - Expose P-256 ECDSA crypto builtins
      - New `signature` command
      - LSP fix - no type signature suggestions for generated methods
  - version: 1.2.0
    date: '2026-04-17'
    breaking: false
    highlights:
      - Allow overlap of term+type references during canonicalization
      - Support underscores in numeric literals
      - Don't use pager for type errors
  - version: 1.1.1
    date: '2026-02-24'
    breaking: false
    highlights:
      - Show full type definition for new type defs in `diff.update`
      - Haskeline updates for ANSI terminals and prompt rendering fixes
  - version: 1.1.0
    date: '2026-01-28'
    breaking: false
    highlights:
      - "`dependents` command now works on constructors and ability requests"
      - Edit Definition and Open on Share support in the VS Code extension v1.5.0
  - version: 1.0.2
    date: '2026-01-05'
    breaking: false
    highlights:
      - New `diff.update` command highlights changes in the scratch file
      - MCP server improvements
      - Fixed multi-line `match` scrutinee parsing error
  - version: 1.0.1
    date: '2025-12-21'
    breaking: false
    highlights:
      - Big type-checking speed-up in common situations
      - Faster JSON generation
      - New `moveTo` command
  - version: 1.0.0
    date: '2025-11-25'
    breaking: false
    highlights:
      - Unison 1.0.0 release