Pension fund changing from defined benefit to defined contribution – will my pension be affected?

I, 67 years old and retired, just found out that my pension fund plans to use the defined contribution model (previously they used defined benefits). Will that impact the pension I receive?

No it will not. Although people who are still paying into the pension fund will likely be affected, you as a pensioner have already completed your part of the contract. Because the contract is “closed” so to speak, the pension fund must keep to its agreement and pay you the predefined pension.