core:
 * Fix parsing text in some broken pdf files. Issue #1040
 * Fix memory issue when using threads. Issue #1050
 * TextSelectionDumper: Fix getText() for space after word
 * Change signature of OutputDev:tilingPatternFill
 * Make PDFDocBuilder return a std::unique_ptr
 * Improve well formed check for shading functions
 * Fix leak in case of fread failing
 * Fix memory leak in broken file in JBIG2Stream::readGenericBitmap
 * PSOutputDev: Fix stack overflow in broken files

glib:
 * poppler_annot_free_text_get_callout_line: Fix wrong static cast
 * poppler-structure-element: fix memleak
 * Improve documentation
 * demo: keep same visual appearance between displayed and copied text

utils:
 * pdftotext: Add -cropbox option
 * pdftoppm: Add -progress option
 * pdftoppm: Fix rounding bug in computation of output bitmap size. Issue #927

qt6:
 * Add missing poppler-qt6.pc.cmake