What starves ill will? In SN 46.51, the Burmese and Sinhala editions answer mettā·ceto·vimutti, the heart’s release by friendliness. The Thai edition has just ceto·vimutti, unqualified.
One word apart, and the teaching widens. Thanissaro, translating the Thai, takes the unqualified ceto-vimutti to cover all four brahmavihāras, not just mettā. That fits AN 5.161 and AN 5.162, where more than friendliness is prescribed for resentment.
The post sets the Burmese and Thai Pāli, Sujato and Thanissaro side by side, row by row, so you can see the difference for yourself. It ends with the commentarial point that what separates mettā from mettā ceto-vimutti is jhāna quality.