Earlier this year, the International Aid Transparency Initiative (IATI) Technical Team implemented a bug fix to the Activity Status codelist by swapping the descriptions for two codes, and changing the names for clarity. The affected codes were '3' (formerly 'Completion', now 'Finalisation') and '4' (formerly 'Post-completion', now 'Closed'). This is not a "breaking change", meaning it does not require action on the part of publishers as the codes now better reflect the widely-held understanding of these two status options.
You can check your DevResults Status Options and how they map to IATI Activity Status codes by going to Administration > Status Options.
In addition, IATI also added several new sector, aid type, and finance type codes to reflect changes made in 2018 by the OECD Development Assistance Committee (DAC). You can find the full list of new codes on the IATI Github page (n.b. that withdrawn codes are still available in DevResults for the time being, but will be removed by the end of June, after we have ensured all DevResults users have stopped using them).
These new codes are now available in the table found on Administration > Sectors and on the Activity IATI tab in various fields.