Qt 6.11 introduces the Qt Task Tree module as a technology preview, bringing declarative APIs to C++ for managing asynchronous workflows. The module uses a recipe-based approach where developers define task execution patterns declaratively, while QTaskTree handles lifecycle management, execution order, parallel/sequential processing, and error handling automatically. It unifies various Qt asynchronous APIs (QProcess, QNetworkReply, QtConcurrent, QTimer) through a common interface using task adapters. The module supports advanced features like conditional execution, loops, logical operators for tasks, and different execution modes. Originally developed for QtCreator in 2022, it's now used in over 100 places within that project for build management, VCS commands, and plugin communication.
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