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.

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.

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