Dear Readers, while we would like to remind you of the very important Special Issue, no. 1, 2024, dedicated to the 75th anniversary of Professor Jan Sokołowski, containing original, cutting-edge papers from the domains of interest and work of Jan Sokołowski, notably shape optimization and control theory, we would also like to draw your attention to the subsequent issues of our Journal, having appeared, at present time up to issue 4/2025, which offer a number of highly interesting and novel results, with special emphasis on non-standard problems of optimization and their treatment.

Regarding the last issue published, namely 4/2025, we would like to draw your attention to an interesting data set, associated with one of the papers, appearing there, devoted to internal migrations in Poland at the municipality level, available at https://data.mendeley.com/datasets/wyjzkfx6yd/3 .