Problematic tests list (5 rows):

bugs.core_2484_test | Success message when connecting to tiny trash database file
bugs.core_5236_test | IN/ANY/ALL predicates may cause sub-optimal (late filtering) execution of joins
bugs.gh_0310_test | System table with keywords
bugs.gh_6875_test | Significant performance regression of SIMILAR TO and SUBSTRING(SIMILAR) when pattern is taken from variable (rather than directly specified)
bugs.gh_8223_test | SubQueryConversion = true: error "no current record for fetch operation" with complex joins

This list is the same for:

6.0.0.767 2025.05.01 cdd2943f | CS