Apache Kafka 4.2.1 Release Announcement

We are proud to announce the release of Apache Kafka 4.2.1. This is a bugfix release that includes several critical fixes. For a full list of changes, be sure to check the release notes.

See the Upgrading to 4.2.1 from any version 0.8.x through 4.1.x section in the documentation for the list of notable changes and detailed upgrade steps.

Summary

This was a community effort, so thank you to everyone who contributed to this release, including all our users and our 45 contributors: Abhinav Dixit, Alieh Saeedi, Andrew Schofield, Apoorv Mittal, Artem Livshits, averemee-si, Bolin Lin, Chia-Ping Tsai, Chia-Yi Chiu, Chirag Wadhwa, Christo, Christo Lolov, Daeho Kwon, David Jacot, Ding, Edoardo Comar, Federico Valeri, Giuseppe Lillo, Hector Geraldino, José Armando García Sancio, Josep Prat, Ken Huang, Kevin Wu, Kirk True, Lianet Magrans, Lucas Brutschy, Luke Chen, majialong, Maros Orsak, Matthias J. Sax, Mickael Maison, Ming-Yen Chung, Murali Basani, Nikita Shupletsov, Nilesh Kumar, Parker Chang, Philippus Baalman, PoAn Yang, Ritika Reddy, Shivsundar R, sstremler, Sushant Mahajan, TaiJuWu, Tirth, zhiyan-tang