The National Library in Warsaw just published several catalogues of its collection:

Katalog fotografii ze zbioru Aleksandra Czołowskiego, 2020
Bibliografia przekładów Josepha Conrada, 2020

Catalogue of Incunabula in the National Library of Poland, vol. 1 & 2, 2020
Katalog rękopisów Biblioteki Narodowej, seria III, tom VII, cz. 1-3, 2020

Despite pandemic and lockdowns Polish National Library worked diligently to release new bibliographies. Congratulations and thank you for your donation, National Library.