[moomin]

Good guide. I _think_ UOH is “unpinned object heap”, which is a variant of the large object heap that allows compaction. So the only things going into the LOH these days are both large and pinned. But I’m not 100% on this.

[orphea]

The parent is correct, UOH is User Old Heap.

https://devblogs.microsoft.com/dotnet/internals-of-the-poh/

[moomin]

Ah, thankyou. So, if inundestand correctly, UOH is “LOH” and “POH”, it’s not actually a singular heap at all.