img 11.03.21
Lexie

Lexie

Report Generator Improvements, .Net Core Migration – Release Notes v10575-v10864

This release was another big one in moving our system over to .Net Core format to grant you access to the newest and best tools that have been added to C#. Also included in this release are changes to our report generator, now any report you run on a backtest will include an estimated capacity […]

img Back to Blog
  • img

    Pioneering Tomorrow’s Trading

    QuantConnect provides a free algorithm backtesting tool and financial data so engineers can design algorithmic trading strategies.

    Sign up for Free
  • img 03.02.21
    Lexie

    Lexie

    .Net Core Migration, Github Actions CI, New Python Packages – Release Notes v10339-v10574

    This release is a big update for LEAN, we’re marching towards .NET Core support with the migration of our projects to .NET Core format. We’re still a few weeks away from being ready but we’re optimistic Core will bring a speed up and better cross-platform compatibility. We’ve integrated with the new Github Actions CI system […]

    img 20.01.21
    Lexie

    Lexie

    New Indicators, Speed and Performance Improvements – Release Notes v9993-v10335

    We rounded out 2020 continuing our focus on speed, stability, and feature-completeness as we added more indicators and debugged some tricky option-universe selection edge cases. We sped up the regression test-suite and welcomed several new open-source contributors! Special thanks to Cnaccio, aarjaneiro, aricooperman,and mathpaquette. QuantConnect is an open-source platform. Join us as we break open […]

    img 24.11.20
    Lexie

    Lexie

    Interactive Brokers Currency Improvements, New Notebook API Support, Options Backtesting Enhancements – Release Notes v9464-v9760

    LEAN v9464-v9760 unlocks key live trading functionality for accounts with non-USD base currencies, to better serve our global clients. We’ve streamlined harnessing the QuantConnect API in the Jupyter Research environment to analyze backtests and projects with ease. We made improved options backtesting for better out-of-the-money assignment messaging.  Features  OptionChain and OptionContract improvements (Github | Docker)  […]

    img 05.10.20
    Lexie

    Lexie

    Autocomplete Python Stubs CI, Binance Exchange Integration, LEAN Speed Improvement – LEAN Release Notes v9194-v9449

    In the last 2 weeks the QuantConnect team has been focused on stability and bug fixes. Diving deep into some of the long lingering issues and publishing fixes for the along with additional regression tests to lock in that stability. We also surpassed 10,000 unit tests giving the platform a rock solid foundation for expansion! […]

    img 01.09.20
    Lexie

    Lexie

    Python Auto-complete, and with Integrated Docker-Local IDE Support with VSCode, PyCharm and Visual Studio. Release notes v9842-v9185

    In this release of updates, we have made substantial changes to improve our local development experience through deep integration of the LEAN Docker containers, along with publishing a research docker container for running your LEAN Research Notebooks locally. These docker containers are completely integrated into VSCode, PyCharm, and Visual Studio allowing you to run backtests […]

    img 08.08.17
    Stefano Raggi

    Stefano Raggi

    Senior Engineer

    R-Support, Visual Studio Integration, Python Updates – LEAN Release Notes v2.4.0.1

    This release adds R-support to LEAN; allowing you to run R-code from your LEAN C# algorithms. This makes the R statistics libraries available for use in QuantConnect. Additionally a community member contributed a plugin for Visual Studio which uses the QuantConnect API to perform file editing tasks and deploy backtests. Additionally this release extends Python […]

    img 04.05.17
    Avatar

    Jared Broad

    Founder & CEO

    Python Library Support – LEAN Release Notes v2.4.0.0

    This release adds full python support to enable using common python libraries in your algorithm.It is implemented using the PythonNet library which allows importing C# classes into python and vice versa. The new python algorithms are fully supported in local and cloud trading. There are some minor API adjustments to use the new library but […]

    img 16.03.17
    Avatar

    Jared Broad

    Founder & CEO

    Free Streaming Live Data with IEX – LEAN Release Notes v2.3.0.3

    This release adds the IEXDataQueueHandler allowing LEAN users to stream free US equity trades to their strategy; along with numerous bug fixes to the OANDA and FXCM brokerage implementations. Additional regression algorithms were added to automate testing of daily data algorithms. The Interactive Brokers connection logic was also made more intelligent to fail quickly when […]

    img 11.02.17
    Avatar

    Jared Broad

    Founder & CEO

    Release Notes – LEAN v2.3.0.1

    This release fixed minor bugs in LEAN to improve its stability and consistency across backtesting and live trading. There were no breaking changes in regression tests or the API of LEAN. Features Update AlgoSeek data converter to accept input file mask to only convert specific source files. Added IsAssignable to detect assignment orders in backtesting*. […]