Hi Sebastian, Recently we upgraded exactly from same version to that version, and you need just two rolling restarts if you want two keep same log format version, or three to upgrade that version too.
Personally, I would recommend you to keep those properties, for example you could keep the current log format version for compatibility with old clients versions. Cheers, Get Outlook for Android<https://aka.ms/ghei36> From: Sebastian Schmitz Sent: Thursday, 25 July, 03:22 Subject: [EXTERNAL] Handling of inter.broker.protocol.version and lo.message.format.version after upgrading To: users@kafka.apache.org Hey guys, I wonder what I should do with both settings for future upgrades after having finished the upgrade from 0.10.1 to 2.1.1. Should I just remove it from the config so it will default to the current version of Kafka or do I have to do the rolling upgrade with changing versions and restarting Kafka three times each time? Thanks Sebastian -- DISCLAIMER This email contains information that is confidential and which may be legally privileged. If you have received this email in error please notify the sender immediately and delete the email. This email is intended solely for the use of the intended recipient and you may not use or disclose this email in any way.