v1.38.0

💥 Breaking

• WASM API
  • Renamed RegisterToolchainOutput.lock_file_name to RegisterToolchainOutput.lock_file_names
    and its type to Vec<String>.
  • Renamed RegisterToolchainOutput.manifest_file_name to
    RegisterToolchainOutput.manifest_file_names and its type to Vec<String>.

🚀 Updates

• Added a new Go toolchain implementation, powered entirely by our new WASM plugin system. It can be enabled with the unstable_go identifier.
  • Supports tiers 1, 2, and 3!
  • Supports Go workspaces via go.work files.
  • Extracts project dependencies and relationships from go.mod files.
  • Extracts version and lockfile information from go.sum and go.work.sum files.
  • Basic vendor support (go mod vendor) during Docker prune.
• Added new tools for moon mcp.
  • get_touched_files - Gets touched files between base and head.
  • sync_projects - Runs the SyncProject action for one or many projects.
  • sync_workspace - Runs the SyncWorkspace action.
• Added new moon toolchain command and sub-commands.
  • Add a toolchain to .moon/toolchain.yml with moon toolchain add.
  • View information about a toolchain plugin with moon toolchain info.
• Added support for terminal desktop notifications. Can be enabled with the new
  notifier.terminalNotifications setting in .moon/workspace.yml.
• Added a notifier.webhookAcknowledge setting, that ensures webhooks resolve with a 2xx status
  code.
• Updated project graph invalidation to take manifests from toolchain plugins into account.

🐞 Fixes

• Fixed an issue with task output hydration that would sometimes fail with a permission denied error
  when cleaning stale files.

🧩 Plugins

• Updated rust_toolchain to v0.2.0.
  • Cached the globals bin directory when extending task commands/scripts.
  • Task hashing now includes the host OS, arch, and libc.
• WASM API
  • Added LocateDependenciesRootInput.toolchain_config field.
  • Added PruneDockerInput.toolchain_config field.
  • Added ScaffoldDockerInput.toolchain_config field.

⚙️ Internal

• Updated proto to v0.50.1 (from 0.49.4).

v1.37.3

🐞 Fixes

• Fixed an issue where git:// based code generation couldn't checkout a specific commit.
• Fixed incorrect casing for the moon migrate --skipTouchedFilesCheck option.

v1.37.2

🚀 Updates

• Updated moon ci to always run the sync workspace action, even when no tasks are affected.

🐞 Fixes

• Fixed an issue where git commands would attempt to execute, even when no git binary was found.
• Fixed an issue where moon docker scaffold would over scaffold the same project multiple times.
• Fixed an issue where proto would be installed when MOON_TOOLCHAIN_FORCE_GLOBALS is set.
• Reworked the git commands that are executed for git:// based code generation.

⚙️ Internal

• Updated dependencies.

v1.37.1

📚 Documentation

• Updated the MCP documentation.
  • Added Zed support.
  • Added an llms.txt file to our website.
  • Updated code examples to include the MOON_WORKSPACE_ROOT environment variable.

🐞 Fixes

• Fixed environment variable inheritance for config settings not always working correctly.

🧩 Plugins

• Updated rust_toolchain to v0.1.2.
  • Fixed cargo-binstall failing in CI when the binary already exists.
• WASM API
  • Added SetupEnvironmentInput.globals_dir field.

⚙️ Internal

• Updated dependencies.

v1.37.0

🔖 RFCs

• Task input additions and enhancements: #1985

🚀 Updates

• Added a new Rust toolchain implementation, powered entirely by our new WASM plugin system. Since toolchain plugins are new and unstable, this Rust toolchain can be enabled with the unstable_rust identifier (instead of rust).
  • Supports multiple Cargo workspaces, and workspaces can exist at any depth.
  • More accurate project relationship detection.
  • New addMsrvConstraint setting.
  • Better Docker prune implementation.
  • Improved manifest/lockfile parsing.
  • Cargo/rustup commands are now hashed and cached.
• Added an unstable moon mcp command, which starts an MCP (model context protocol) stdio server
  that responds to AI agent requests.
  • Supports the following tools: get_project, get_projects, get_task, get_tasks.
  • We will be expanding this with more functionality over time, like run_task, etc.
• Updated webhook events.
  • Added environment.initializing and environment.initialized events.
  • Added root and toolchain fields to dependencies.installing and dependencies.installed
    events.
  • Deprecated the runtime field in all events. Will be removed once toolchain plugins are
    complete.

🧩 Plugins

• Added test utilities for testing toolchain plugin functions.
• Improved cache handling and invalidation for SetupEnvironment and InstallDependencies actions.
• WASM
  • Reworked all virtual path fields in "output" structs to greatly reduce the JSON payload.
  • Reworked the ManifestDependency type to be an enum instead of a struct.
  • Added ProjectDependency.via field.

⚙️ Internal

• Updated proto to v0.49.4 (from 0.49.1).
• Updated dependencies.

v1.36.3

🐞 Fixes

• Fixed an issue where environment variables with default/fallback values (${VAR:+default}) were
  not parsed correctly.

⚙️ Internal

• Updated dependencies.

v1.36.2

🚀 Updates

• Added support for shell-specific environment variable namespaces when scanning and substituting
  values. Supports the following:
  • $E: - Elvish
  • $env:: - Ion
  • $ENV. - Murex
  • $env. - Nu
  • $env: - PowerShell
• Updated all identifiers to support unicode alpha-numeric characters instead of just ASCII.

🐞 Fixes

• Fixed some issues where MOON_TOOLCHAIN_FORCE_GLOBALS wasn't respected for Python and Rust
  toolchains.

v1.36.1

🐞 Fixes

• Fixed an issue where tasks would not substitute environment variables when executing, because it
  did not run in a shell.

⚙️ Internal

• Updated dependencies.

v1.36.0

🚀 Updates

• Added more unstable support for toolchain plugins.
  • In the project graph:
    • Extend projects with dependencies, tasks, and an alias.
  • In the action pipeline:
    • Added SetupEnvironment action that executes the setup_environment WASM API.
    • Added InstallDependencies action that executes the install_dependencies WASM API.
  • When running tasks:
    • Extend the command/script with additional parameters before executing.
    • Inject dependency and lock information into the hash.
  • With Docker:
    • Updated docker prune to utilize the new WASM APIs for toolchain plugins.
• Added --host and --port options to moon action-graph, moon task-graph, and
  moon project-graph.
• Added --stdin option to moon ci and moon run, which will allow touched files to be passed
  via stdin, instead of running VCS commands to determine them.
  • This is a follow-up fix to the revert in a previous version. This functionality is now opt-in
    instead of the default, to avoid problematic edge cases.
• Updated and improved remote caching:
  • Added an unstable_remote.cache.verifyIntegrity setting, that will verify the digest of
    downloaded blobs to ensure they aren't corrupted or incomplete. Will degrade performance but
    ensure reliability.
  • Added a file rollback mechanic to that will be triggered when hydration fails part way and
    written files need to be removed.
  • Updated blob existence checks to be batched and parallelized.
  • Can now be enabled entirely through environment variables.
• Updated and improved code generation:
  • Added support for array and object variable types in template.yml. The values must be JSON
    compatible.
  • Updated generator.templates to support https:// URLs that point to an archive that can be
    unpacked.
• Removed the restriction around moon.{yml,pkl} not being allowed as a task input. However, will
  not be included when using **/*.

🐞 Fixes

• Fixed an issue where terminal prompt validation would not trigger.
• Fixed an issue with remote cache hydration where multiple files with the same blob hash would fail
  to write them all.
• Fixed an issue where changing args or env of a task dependency would not invalidate its cache.
• Fixed an issue where environment variables passed on the command line would not overwrite task
  env.
• Fixed tag-based task dependencies not creating implicit project dependencies.
• Fixed some task/command argument quoting issues.

🧩 Plugins

• Added new toolchain WASM APIs.
  • extend_project_graph - Extend projects with toolchain specific info.
  • extend_task_command - Extend the command child process with parameters.
  • extend_task_script - Extend the script child process with parameters.
  • locate_dependencies_root - Locate the package dependencies workspace root.
  • parse_manifest - Parse a manifest file to extract dependencies.
  • parse_lock - Parse a lock file to extract resolved dependencies.
• WASM
  • Added InstallDependenciesInput.packages and production fields.
  • Added InstallDependenciesOutput.operations field.
  • Added PruneDockerInput.projects and root fields.
  • Added PruneDockerOutput.
  • Added SetupEnvironmentOutput.operations field.
  • Added SetupToolchainOutput.operations field.
  • Added SyncWorkspaceInput.toolchain_config field.
  • Added TeardownToolchainInput.version field.

⚙️ Internal

• Updated Rust to v1.87.0.
• Updated proto to v0.49.1 (from 0.47.11).

v1.35.7

🐞 Fixes

• Reverted moon ci and moon run accepting touched files via stdin, as it's causing issues in CI
  environments. Will revisit for the next release.