Diablo II: Resurrected Patch 2.4 Release On April 14, Ladder Start on April 28

wowhead.com:

Blizzard has announced that Diablo II: Resurrected's Patch 2.4 will be released on April 14! The development team also intends to launch D2R's first ladder season two weeks later on April 28. Last but not least, players and fans should expect «great community events» with the ladder launch, Global Community Lead Adam «PezRadar» Fletcher mentioned at the end of the blog post.

First, we just wanted to thank everyone for the feedback and testing over the last several weeks as we honed in on various database, server, and balance changes that will be arriving with this update for D2R (Diablo 2: Resurrected). Originally, we planned to have this update out by the end of this month, but unfortunately ran into some snags.

I know your first reaction may be “HERE WE GO AGAIN!” which everyone has every right to say as getting this update perfected for Ladder has been quite a journey. But we did want to explain some of the circumstances that lead to this adjustment in dates and at the same time provide you with updates on the new expected release of 2.4 and the start of Ladder to ensure players have enough time to plan for the race that occurs with the start of each Ladder season.

So, what happened here? As you may recall, we have been working through extensive updates on the backend and database services for the game. Over the last few months, the team has been implementing these updates to the server and database using learnings from PTR (Public Test Realm) and from the immense help the community provided during these testing phases.