This volume contains the proceedings of PLACES 2026, the 17th edition of the Workshop on Programming Language Approaches to Concurrency and Communication-cEntric Software. The workshop is scheduled to take place in Turin, Italy, on April 11, 2026, as a satellite event of ETAPS, the European Joint Conferences on Theory and Practice of Software. PLACES offers a forum for exchanging new ideas on how to address the challenges of concurrent and distributed programming and how to improve the foundations of modern and future computer applications. PLACES welcomes researchers from various fields, and its topics include the design of new programming languages, models for concurrent and distributed systems, type systems, program verification, and applications in various areas (e.g., microservices, sensor networks, blockchains, event processing, business process management).

翻译：本卷收录了PLACES 2026——第17届编程语言方法在并发与通信中心软件研讨会的论文集。该研讨会定于2026年4月11日在意大利都灵举行，作为欧洲软件理论与应用联合会议（ETAPS）的卫星会议。PLACES为研究者提供了一个交流新思想的论坛，探讨如何应对并发与分布式编程的挑战，以及如何改进现代和未来计算机应用的基础。PLACES欢迎来自不同领域的研究者，其主题包括新型编程语言的设计、并发与分布式系统的模型、类型系统、程序验证，以及各类应用（例如微服务、传感器网络、区块链、事件处理、业务流程管理）中的实践。