v1.1.19 - 2025-07-28

Release Notes

Added

• aiken-project: Pretty print execution units. Added --plain-numbers
  flag to check command, to switch between the two formats. @nikhils9
• aiken-lang: New type decorators that allow control over the encoding of types. @rvcas @MicroProofs

Changed

• aiken-project: Reintroduce filtering by files with the extension .ak like in the past. This was how it was at first anyways. @keyan-m

Fixed

• aiken-lang: Fix formatting issue with grouped pipeline followed by tuple index. @rvcas
• aiken-lang: Fix formatting issue with record updates and punning syntax. @rvcas
• aiken-lang: Prevent validator params being in the top level scope for functions. @MicroProofs
• aiken-lang: Formatting for long import lines @rvcas
• aiken-lang: aiken add wrongly rejects valid org/project pairs. @rvcas
• uplc: PlutusData comparison in the UPLC VM shouldn't rely on CBOR encoding. @rvcas @KtorZ

Install aiken 1.1.19

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/aiken-lang/aiken/releases/download/v1.1.19/aiken-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy ByPass -c "irm https://github.com/aiken-lang/aiken/releases/download/v1.1.19/aiken-installer.ps1 | iex"

Install prebuilt binaries into your npm project

npm install @aiken-lang/[email protected]

Install prebuilt binaries via Homebrew

brew install aiken-lang/tap/aiken

Download aiken 1.1.19

File	Platform	Checksum
aiken-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
aiken-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
aiken-x86_64-pc-windows-msvc.tar.gz	x64 Windows	checksum
aiken-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum