Juma made a valid point in the Jira ticket: "we cannot change the client upgrade guarantees outside of a major release." To avoid blocking the 4.0 release, this thread should focus on the "client upgrade path." We can create a separate ticket to discuss the advanced compatibility policy.
Additionally, we need to upgrade e2e (and docs) according to the client upgrade path Best, Chia-Ping On 2025/01/20 18:04:43 Chia-Ping Tsai wrote: > To Kuan-Po > > > When we're talking about two major versions, should it be [4.x, 5.x] or > [4.x, 6.x]? The latter seems to refer to three major versions, doesn't it?" > > Sorry for the unclear description. My point is that 5.x can communicate > with both 4.x and 6.x. > > > In the meantime, I think we should align on the plan for 4.0. Do we really > want to keep testing and supporting direct client upgrades from 0.11 to > 4.0? Is that even a good idea? Seems pretty risky to me. > > The upgrade paths described by KIP-1124 do not include 0.11 -> 4.0 > *Propose documenting the following recommended upgrade path: * > > *Kafka Client: [0.11.x - 1.x] → [2.0.x - 3.9.x] → 4.x* > > *Kafka Streams: [0.11.x - 2.3.x] → [2.4.x - 3.9.x] → 4.x* > > *Best,* > > > *Chia-Ping* > > Ismael Juma <m...@ismaeljuma.com> 於 2025年1月21日 週二 上午1:22寫道： > > > Thanks for the KIP - one suggestion I have is to perhaps separate the long > > term policy (which will naturally require a lot more debate) and what we > > plan to do for 4.0. > > > > Why is the long term policy more complicated? Because it is trying to > > predict the future (Matthias made a comment regarding how 2.x and 3.x were > > long release lines for example, but we don't actually know how long 4.x or > > 5.x will be). It's a worthwhile discussion, but shouldn't be rushed. > > > > In the meantime, I think we should align on the plan for 4.0. Do we really > > want to keep testing and supporting direct client upgrades from 0.11 to > > 4.0? Is that even a good idea? Seems pretty risky to me. > > > > Ismael > > > > On Wed, Jan 15, 2025, 5:45 AM Kuan Po Tseng <brandb...@gmail.com> wrote: > > > > > Hi all, > > > > > > I'd like to initiate a discussion thread on *KIP-1124,* which proposes a > > > clear upgrade path for Kafka Client, including Kafka Streams. > > > You can find the details here: > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-1124%3A+Providing+a+clear+Kafka+Client+upgrade+path > > > I’d appreciate it if you could take a look and share your thoughts or > > > feedback. > > > > > > Best regards, > > > Kuan-Po Tseng > > > > > >
