How had the farm changed in the years since boxers death?

After a few years, the only animals that even remember the Rebellion are Clover, Benjamin, Moses, and some of the pigs. Muriel, Bluebell, Jessie, and Pincher have died. Mr. Jones has died in a home for alcoholics. Still, no animal has retired, and no pasture has been put aside for retired animals. Napoleon and Squealer have both become very fat. The farm is bigger, thanks to land purchased from Mr. Pilkington, and now features a threshing machine and hay elevator. The windmill is finished, but the animals use it to mill corn for a profit instead of to generate electricity as planned. Napoleon puts the animals to work building an additional windmill, which he promises will supply electricity. However, he discourages the animals from dreaming of luxury, saying, “The truest happiness … [lies] in working hard and living frugally”