To reason about both classical information and quantum information and their interaction, we provided the first steps of a unified logical setting that can encode both. The paper "Modeling correlated information change: from conditional beliefs to quantum conditionals" (2017) illustrates that our dynamic perspective proves very powerful and allows us to draw connections between the classical and quantum information-theoretic research areas. In the mentioned paper, we focus both on classical belief change (when an introspective agent changes her beliefs due to learning new incoming information) and on quantum observations (when an agent performs a quantum measurement). This paper contains a formal relational semantics based on an adaptation of so-called Kripke frames (where the relations are labeled by propositional formulae). It turns out that such a semantics can indeed yield a unified setting that can be used to analyze the informational aspects of quantum measurements as well as classical belief change and counterfactual reasoning in single-agent scenarios. Note that this line of work is still continuing and the next step is the design of a new proto-type logic of an integrated combined logical system, a quantum dynamic epistemic logic, that contains a full ‘internal encoding’ of the actual classical and quantum informational dynamics. The preliminary explorations of the main ingredients for this work on quantum dynamic epistemic logic were first presented at the Workshop on 'Categories and Quantum Mechanics' in Barbados at the McGill research center in 2015 as well as at the concluding VIDI workshop in 2015.