On 25 Years of CIAA Through the Lens of Data Science.- Manipulation of Regular Expressions Using Derivatives: an Overview.- How to Settle the ReDoS Problem: Back to the Classical Automata Theory.- Ordered Context-Free Grammars.- Symbolic Weighted Language Models, Quantitative Parsing and Automated Music Transcription.- A Similarity Measure for Formal Languages Based on Convergent Geometric Series.- Hybrid Tree Automata and the Yield Theorem for Constituent Tree Automata.- Some results concerning careful synchronization of partial automata and subset synchronization of DFA’s.- A Toolkit for Parikh Matrices.- Syntax Checking Either Way.- On the Power of Pushing or Stationary Moves for Input-Driven Pushdown Automata.- The Cut Operation in Subclasses of Convex Languages (Extended Abstract).- Variations of the Separating Words Problem.- Homomorphisms on graph-walking automata.- Nondeterministic State Complexity of Site-Directed Deletion.- Energy Complexity of Regular Language Recognition.- Real-Time, Constant-Space, Constant-Randomness Verifiers.- Constrained Synchronization for Monotonic, Solvable and Automata with Simple Idempotents.- An Ambiguity Hierarchy of Weighted Context-free Grammars.