Active Objects are a programming paradigm that supports a non-competitive, data-driven concurrency model. This renders active object languages to be well-suited for simulation, data race-free programming, and formal verification.

Active Objects based on Algebraic Effects.- Actor-based Designs for Distributed Self-organisation Programming.- Encore: Coda.- Bridging Between Active Objects: Multitier Programming for Distributed, Concurrent Systems.- A Survey of Actor-Like Programming Models for Serverless Computing.- Programming Language Implementations with Multiparty Session Types.- Modelling.- Integrated Timed Architectural Modeling/Execution Language.- Simulating User Journeys with Active Objects.- Actors Upgraded for Variability, Adaptability, and Determinism.- Analysis.- Integrating Data Privacy Compliance in Active Object Languages.- Context-aware Trace Contracts.- Type-Based Verification of Delegated Control in Hybrid Systems.- Enforced Dependencies for Active Objects.

Active Objects are a programming paradigm that supports a non-competitive, data-driven concurrency model. This renders active object languages to be well-suited for simulation, data race-free programming, and formal verification. Concepts from active objects made their way into languages such as Rust, ABS, Akka, JavaScript, and Go. This is the first comprehensive state-of-art overview on the subject, the invited contributions are written by experts in the areas of distributed systems, formal methods, and programming languages.

First comprehensive overview on the state of art in active object languages Contributors are experts in distributed systems, formal methods, and programming languages Valuable for researchers and practitioners in software engineering and foundations of programming