The format has been set, and MLS appears to have won the compromise.
U.S. Open Cup - Wikipedia
lafc podcasts
After U.S. Soccer Denies Open Cup Plan, What Will MLS Want Instead?
Minnesota United's entanglement as MLS downsizes role in U.S. Open
FC Cincinnati won't have a presence in the 2024 U.S. Open Cup
Who is playing in the US Open Cup 2024? MLS clubs in reworked
2024 Open Cup: MLS final four compete for 2023 US Open Cup final
Atlanta United to compete in 2024 Lamar Hunt U.S. Open Cup
MNUFC2 to Compete in 2024 Lamar Hunt U.S. Open Cup
2024 U.S. Open Cup - Wikipedia
19 MLS and MLS Next Pro Clubs to Compete in 2024 Lamar Hunt U.S.
MLS Withdraws 1st Teams from 2024 U.S. Open Cup; Will Send Reserve
11 MLS NEXT Pro and Eight MLS clubs will participate in the 2024