Logan Mwangi, five, suffered 56 external injuries and catastrophic internal damage at the hands of Angharad Williamson.
Cases include Lola James, Kaylea Titford and Logan Mwangi, who all died in horrendous conditions.
Care Inspectorate Wales says there is still "significant pressure" on Bridgend children's services.
The racist past of Angharad Williamson's partner was correctly withheld from the jury, a court says.
A selection of 26 photographs from across Wales in 2022 with the stories behind them.
A minister says "crucial" sharing of information failed to happen before Logan Mwangi was killed.
Cwm Taf Morgannwg safeguarding board says it takes full responsibility.
Logan's former head teacher says he had a cheeky smile and was talking all the time.
Logan went to hospital with a broken arm and bruises but was not referred to child protection.
