QuantConnect.Messaging by: QuantConnect Team and Community Contributors

QuantConnect LEAN Engine: Messaging Project - The external messaging system implementation

QuantConnect.pythonnet by: QuantConnect Python Team

QuantConnect PythonNET package

QuantConnect.Queues by: QuantConnect Team and Community Contributors

QuantConnect LEAN Engine: Queues Project - Handles and generates live and backtesting algorithm jobs

QuantConnect.Research by: QuantConnect.Research

QuantConnect LEAN Engine: Research Project - Core implementation for jupyter research environment

QuantConnect.ToolBox by: QuantConnect.ToolBox

QuantConnect LEAN Engine: ToolBox Project - A collection of data downloaders and converters

Quartz by: Marko Lahma

Quartz Scheduling Framework for .NET

Quartz.Extensions.DependencyInjection by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: AddQuartz, QuartzOptions and the rest live in the Quartz package now. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

Quartz.Extensions.Hosting by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: AddQuartzHostedService, QuartzHostedService and QuartzHostedServiceOptions live in the Quartz package now. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

Quartz.Jobs by: Marko Lahma

Quartz Scheduling Framework for .NET

Quartz.Plugins by: Marko Lahma

Quartz Scheduling Framework for .NET

Quartz.Plugins.TimeZoneConverter by: Sean Farrow

Quartz.NET TimeZoneConverter integration https://github.com/mj1856/TimeZoneConverter

Quartz.Serialization.Json by: Marko Lahma, Quartz.NET

Renamed to Quartz.Serialization.Newtonsoft in 4.0. This package is empty and exists only so a grouped dependency update can move to 4.x - reference Quartz.Serialization.Newtonsoft instead, and see the migration guide.

Quartz.Serialization.SystemTextJson by: Marko Lahma, Quartz.NET

Folded into Quartz in 4.0: the System.Text.Json job store serializer is built into the Quartz package and is the default. This package is empty and exists only so a grouped dependency update can move to 4.x - remove the reference, and see the migration guide.

QuestPDF by: MarcinZiabek

QuestPDF is a modern PDF generation library for C# and .NET. Create invoices, reports, and data exports — a code-first alternative to HTML-to-PDF conversion. Merge and edit documents, generate PDF/A and accessible PDF/UA files, embed ZUGFeRD and Factur-X invoice XML. Source-available with a free Community license.

QuickGraph by: Jonathan Peli de Halleux

QuickGraph provides generic directed/undirected graph datastructures and algorithms for .Net, Silverlight, Windows Phone and Win 8. QuickGraph comes with algorithms such as depth first seach, breath first search, A* search, shortest path, k-shortest path, maximum flow, minimum spanning tree, least common ancestors, etc...

QuikGraph by: Alexandre Rabérin

.NET library that provide mainly graphs structures and algorithms for C#. QuikGraph provides generic directed/undirected graph data structures and algorithms for .NET. It comes with algorithms such as depth first seach, breath first search, A* search, shortest path, k-shortest path, maximum flow, etc... This package is a version of the original QuickGraph renamed QuikGraph and ported to .NET Core. It should be seen as an alternative to the old frozen QuickGraph from CodePlex but with fixes. It does not include every sub modules of the original library such as F# stuff, adapters, etc. This build is only the Core of QuikGraph taking advantage of .NET Core. Supported platforms: - .NET Standard 1.3+ - .NET Core 1.0+ - .NET Framework 3.5+ Supports Source Link

QuikGraph.Graphviz by: Alexandre Rabérin

.NET library that provides a bridge from QuikGraph graphs structures to Graphviz and Dot language serialization. This package is the Graphviz subset of the original QuickGraph renamed QuikGraph and ported to .NET Core. Supported platforms: - .NET Standard 1.3+ - .NET Core 1.0+ - .NET Framework 3.5+ Supports Source Link

R.NET by: Kosei Abe, Jean-Michel Perraud

A .NET interoperability library to access the R statistical language runtime from .NET languages. The library is designed for fast data exchange, in process.

R.NET.Community by: Kosei Abe, Jean-Michel Perraud

Transitional package, you can remove and directly use nuget package ID R.NET

RabbitMQ.Client by: VMware

The RabbitMQ .NET client is the official client library for C# (and, implicitly, other .NET languages)