Hello everyone,
The final version of the next LuaRT release will be available soon.
Contrary to what I had planned, this version includes numerous internal changes and bug fixes.
Indeed, development of the cross-platform version is progressing rapidly, and I've decided to integrate some of the upcoming features in this version (which will also allow you to test them).
This Windows-specific version will be the last one, the project will be deprecated (only bug fixes) as multiplatform LuaRT will be the main project now.
I therefore invite you to test LuaRT 2.2.0 in advance, as a thank you for your enthusiasm for this project.
I hope to be able to release LuaRT 2.2.0 in the coming days if your feedback is positive. The documentation will then be updated.
Here are the download links and the complete changelog. I look forward to your feedback!
➡️ Download links
🛡️ VirusTotal detection
LuaRT v2.2.0 (Apr 2026)
Highlights
- Lua VM updated to 5.5
- New optional source preprocessor with language extensions
- New
capture module for camera/video capture (requires Windows 10+)
- New LuaRT interpreters options
-p, -l, -v
- Various additions and bugfixes
Lua VM
- Updated to latest Lua VM 5.5
Language Extensions (Preprocessor)
- Optional preprocessor that expands to standard Lua code
- Preserves Lua 5.5 compatibility by default
- New:
--! luart-extensions comment at very first line to activate the LuaRT preprocessor
- New:
async function name(args) ... end syntax to declare an async Task factory
- New:
await expr syntax to await for a Task fo finish
- New:
import mod syntax for requiring modules
- New:
class Name { ... } and class Name(Parent) { ... } syntax for Object definition
- New:
try ... catch err ... end syntax for simple error handling
- New: String interpolation with
"hello ${name}" syntax
- New: LuaRT interpreter
-p CLI option to preprocess a file and print output to stdout
LuaRT interpreters
- New:
-l name option to require a library before running the script
- New:
-v option to show version information
- Fixed: requiring for binary modules on
x86 won't crash anymore
rtc
- Updated: Faster loading time for compiled executables startup
- Updated: embedded content is now obfuscated (simple encryption)
- Fixed: Now Lua files included in the embedded content are really compiled to Lua bytecode
- Fixed: multiple compiled executables instances can now execute at the same time
- Fixed: multiple compiled executables with different LuaRT versions can now execute at the same time
LuaRT C API
- New:
lua_starttask() to start a Task from C
- New:
luaL_loadfilep() for preprocessor-aware file loading
sys module
- New:
sys.TaskFactory(fn) for method-style async functions
- New:
sys.tasks property to get a list of all active tasks
- Fixed:
sys.clipboard.content text is no more trimed by one character
- Updated:
COM object now supports using properties with parameters (using a function call)
- Updated:
Bufferconcatenation now returns a Lua string
console module
- Fixed: Flushing
console.stdin works now as expected
capture module
- New
capture module for camera and video capture
- New
capture.devices property to enumerate video and audio devices
- New
Camera object to record video (with preview widget if ui module is already loaded)
- New
Camera:snapshot(path) method to take a photo
- New
Camera.record.start() and Camera.record.stop() methods for video recording
ui module
- New:
ui.task is a Task object that manages ui updates in the background
- New:
Window:showasync() method to show the Window with a helper Task that ends when the Window hides.
- New:
Edit.textlimit and Edit.textlength property
- New: Drag and drop support with
Listbox:onDropItem() and Tree:onDropItem() events
- New:
List:insert(), Tab:insert(), Tree:insert(), Combobox:insert() methods (buggy with icons...)
- New:
ListItem:move(), TreeItem:move(), TabItem:move(), ComboboxItem:move() methods (buggy with icons...)
- Removed:
ui.run() function have been removed (use now ui.task or Window:showasync())
- Fixed: No more random
ui module crashes on x86
- Fixed:
ui won't crash when some custom Windows messages are received
- Fixed:
Button clicks won't beep anymore
- Fixed:
tooltip is now correctly dark/light themed
- Fixed:
ui.opendialog() and ui.savedialog() are now modals as expected
- Fixed:
Edit:onChange() and Entry:onChange() won't enter an onChange() loop anymore
net module
- Fixed:
Http requests with large content are no more truncated
webview module
- Fixed:
Webview now uses correctly embedded content for requests
C module
- Fixed:
c.sizeof() and c.Array() now accepts the 'Z' character as a correct C type
serial module
- Fixed:
Port.stopbits now is correctly sets to one by default
sqlite module
- Fixed:
db.query() now always release statement memory
json module
- Fixed:
json:save() now correctly returns false in case of error
xml module
- Fixed: XML attributes now works as expected
yaml module
- Fixed:
save() and encode() functions now preserves tabulations and hierarchy
