According to the main Reddit thread, the hard fork is going to introduce four key changes. The upgrade is going to bring some changes to the dynamic block size algorithm in order to fix big bang attack, a spam-bloating attack, and ensure scaling in for the short-run and long-run.

The second update concerns Monero network's mining algorithm, which is said to bring down ASIC mining. The team stated,

"Second, a third PoW tweak (CryptoNight-R) to curb the ASICs currently present on the network and further preserve ASIC resistance. As a result, miners will have to update their miners (i.e. mining software) as well."

The network's constant mining algorithm updates resulted in several ASIC mining pools incurring losses. Coinhive, a cryptocurrency mining platform, cited this upcoming hard fork as one of the reasons they shut down operations on March 8. The drop in XMR's price during the crypto-winter was another reason that contributed to the mining platform shutting down.