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The order of selection of OpenMP flags has been changed: Oracle Developer Studio 12.5 accepts ‘-fopenmp’ and ‘-xopenmp’ but only the latter enables OpenMP so it is now tried first.
‘fisher.test(*, hybrid=TRUE)’ now (again) will use the hybrid method when Cochran's conditions are met, fixing PR#16654.
Running of finalizers after explicit GC request moved from the R interface ‘do_gc’ to the ‘C’ interface ‘R_gc’. This helps with reclaiming inaccessible connections.