- **Switched from alt_getopt to argparse** - Both `moon` and `moonc` now use argparse for argument parsing, providing better help messages via `--help` and more robust option handling

- **Added `-e/--execute` flag to `moon`** - Execute MoonScript code directly from the command line:

```

```

- **New `--transform` option for `moonc`** - Allows custom AST transformations before compilation by specifying a module that receives and returns the syntax tree

- **Improved `-` (stdin) handling** - Now properly enforces that `-` must be the only argument

- `-w` is now also available as `--watch`

- `-l` is now also available as `--lint`

- `-t` is now also available as `--output-to`

- **moon-tags** - New script for generating ctags-compatible tag files for MoonScript, with support for:

- Class definitions

- Class methods

- Top-level function definitions (exported via `{:func}` pattern)

- Lapis route detection (`--lapis` flag)

- Optional line numbers (`--include-line` flag)

- Optionally skip header (`--no-header` flag)

- **`moon.p()` now prints multiple arguments** - Pass multiple values and each will be dumped

- **`util.dump` shows class names** - When dumping objects, the class name is displayed (e.g., `<MyClass>{...}`)

- **Lua keyword property access on self** - Properties with Lua keyword names (like `@then` or `@@then`) now compile correctly using bracket notation instead of invalid `self.then`

- **Fixed ambiguous Lua generation after `import`** - Semicolons are now correctly inserted when the next line starts with `(`, preventing parsing ambiguity

- **Fixed update operators with complex chain indexes** - Expressions like `a[func()].x += 1` now correctly lift the index expression to avoid double evaluation

- **Exit with proper error code** - `moon` now exits with code 1 when the executed script fails

- **Fixed `moonc -`** - Reading from stdin now works correctly

- **Removed accidental debug print** - Removed stray `print file, time` in watcher code

- **`dump.tree` returns string** - Now returns the string instead of printing directly

- **Removed noisy "Built" message** - Single file compilation no longer prints "Built" to stderr

- Migrated CI from Travis to GitHub Actions

- Added comprehensive compiler and transform specs

- Improved binary building workflow for Windows and Linux

- Better error messages for invalid destructure assignments

- Updated `splat.moon` to use argparse, added `--strip-prefix` option