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Version: v1
For the complete documentation index, see llms.txt

Compact developer tools

Compact is Midnight's dedicated smart contract programming language, designed for building secure, efficient, and adaptable decentralized applications.

Compact developer tools are a command-line utility for installing, updating, managing, and running the Compact toolchain and compiler.

Link to related documentation

To download the component, click the appropriate link under Artifacts.

Release 0.5.3LATEST

29 September 2026

Artifacts

Summary

Maintenance release: toolchain installs no longer need unzip, and running compact update again repairs a failed install.

  • compact update unpacks toolchain archives itself, so installing a toolchain no longer needs unzip.
  • Running compact update <version> again after a failed install now reinstalls that version instead of reporting already installed and failing.
  • compact no longer sets a missing compiler as the default, and commands that find a broken default now print the compact update <version> command that repairs it.
  • compact update deletes an unreadable toolchain archive and downloads it once more instead of failing on every retry.
  • --help output wraps to the width of your terminal.
  • Known issue: with toolchain 0.22.0 or 0.23.0 installed by 0.5.3, include "std"; fails to compile. Use import CompactStandardLibrary; instead.