Latest is here:
'
https://armedservices.house.gov/hear...g-tactical-and
The meat is in
LTG Michael Schmidt's written statement, but there's more in the video, particularly after 2:11.10.
The tl;dr as the kiddies say is that part of initial Block 4 is now expected in Aug/Sept, almost a year after the Jan 2023 schedule for the
complete initial Block 4. And it won't be combat-ready for another 12-16 months after that.
The whole multi-year Block 4 plan has been deemed unattainable and is being "reimagined" (their very word) to be slower and include fewer capabilities.
And don't talk about the corrosion issues. Or the fact that MC rates have been declining since 2020.