When was it decided that Greece would receive short-term debt relief?

In its statement of 25 May 2016, the Eurogroup mandated the ESM to work on a first set of debt relief measures, referred to as short-term measures.

The ministers said that these measures would be implemented after the closure of the first review and before the end of the current ESM programme (the third programme). On 5 December 2016, the ESM presented detailed plans for the short-term measures to the Eurogroup.

On January 23, the governing bodies of the  ESM and of the EFSF completed the approval process of  the measures. The measures were successfully implemented over the course of 2017.