CPSU head Melissa Donnelly highlights the changing face of unions where the average member is now a 44-year-old working mother.

CPSU head Melissa Donnelly highlights the changing face of unions where the average member is now a 44-year-old working mother.

Melissa Donnelly, who has led the Community and Public Sector Union for seven years, will replace ACTU secretary Sally McManus at the end of August.