No, it's a 6 month release cadence. You might be confusing the initial release with a point release which are less regular. Edit: oh, my bad, I see the article author had the wrong year for 24.

  22 was March 2024
  23 was September 2024
  24 was March 2025
  25 was September 2025

This is much better than the old "release train" system where e.g Java 5 and Java 6 were released in Sept 2004 and Nov 2006 respectively!