Hi Jim, Thank you for the advice regarding the upgrade path.
I apologize for the confusion; we have decided to change our approach. We are now planning a fresh installation of Apache NiFi 2.6 on new servers (dev2, stage2, and prod2), setting up a three-node cluster in each environment. Could you please provide the relevant documentation or the steps we should follow for a new NiFi 2.6 cluster installation? Since we are looking at a major jump, how stable would you rate the latest NiFi 2.6 release for production use right now? Kind regards, Johnson On Tue, Nov 25, 2025 at 2:30 PM Jim Halfpenny <[email protected]> wrote: > Hi Johnson, > Here's some general advice for upgrading your NiFi 1.17 installation. > There have been a lot of changes since NiFi 1.17 so you won't be able to > jump straight to the latest version. > > - NiFi 1.x is no longer maintained so ideally you want to aim to > upgrade to NiFi 2. > - Because you are on NiFi 1.17 you would need to upgrade to the latest > version of NiFi 1 (1.28.0) before you can upgrade to NiFi 2.x. > - The NiFi documentation is good, I would suggest starting there -> > https://nifi.apache.org/documentation/v1/. The admin guide has some > useful information on upgrading your NiFi cluster. > - Make sure you back up your NiFi installation before you begin > upgrading and test the upgrade in a non-production environment before doing > this for real. > - There are a lot of features and processors deprecated in NiFi 2, so > you will need to make sure that you thoroughly test your workflows. > > Kind regards, > Jim > > On Mon, 24 Nov 2025 at 14:47, Sadhasivam, Johnson via dev < > [email protected]> wrote: > >> Hi Team, >> >> We are planning to upgrade our current Apache NiFi environment, which is >> running a three-node cluster on version 1.17.0 (attached screenshot for >> your reference). >> >> Could you please advise on the latest stable version of NiFi that you >> recommend for this upgrade? >> >> Additionally, please share any relevant documentation that includes the >> installation steps. >> >> >> [image: image.png] >> Thanks, >> Johnson Sadhasivam >> >
