# Knative v0.18.0 update

Author: [Mete Atamel](https://atamel.dev/) | Published: 2020-10-12 | Topics: Knative, Serverless, Kubernetes, Google Cloud Platform, How To | Canonical: https://atamel.dev/posts/2020/10-12_knative-v0180-update/


I got around to updating my [Knative
Tutorial](https://github.com/meteatamel/knative-tutorial) from Knative `v0.16.0`
to the latest Knative Serving `v0.18.0`
[release](https://github.com/knative/serving/releases/tag/v0.18.0) and Knative
Eventing `v0.18.1`
[release](https://github.com/knative/eventing/releases/tag/v0.18.1).

In this short blog post, I want to outline a couple of minor issues I encountered during
my upgrade. Note that I skipped `v0.17` altogether, some of these changes might
have happened in that release.

## Istio Installation

The biggest change I encountered is how Istio is installed for Knative. In
previous releases, I simply pointed to the yaml files in the latest Istio
version in `third_party` folder of Knative Serving.

In the latest release, the `third_party` folder does not include Istio versions
anymore. Through this
[commit](https://github.com/knative/serving/pull/8945/commits/9fb9b37a705254a1449dff362ac5b5c5a8818e79),
I learned that [net-istio install
scripts](https://github.com/knative-sandbox/net-istio/tree/master/third_party)
is the way to install Istio.

I updated my
[install-istio](https://github.com/meteatamel/knative-tutorial/tree/master/setup#install-istio)
instructions in my Knative Tutorial to take this into account.

## Knative Eventing v0.18.1

When I first installed Knative Eventing `v0.18.0`, I encountered a weird error
where I couldn't inject Broker into the namespace and create triggers. Turns
out, there was a [bug](https://github.com/knative/eventing/issues/4165) in
Knative that caused eventing webhook to get into an infinite crash loop.

The team released Knative Eventing `v0.18.1` to fix the issue and I updated my
setup
[config](https://github.com/meteatamel/knative-tutorial/blob/master/setup/config)
to use separate versions for Knative Serving and Eventing as a result.
Therefore, it's important that you use `v0.18.1` onwards for Knative Eventing.

---

That's it. The rest of my setup and tutorial steps worked fine.

Feel free to reach out to me on Twitter
[@meteatamel](https://twitter.com/meteatamel) or read my previous posts on
[medium/@meteatamel](https://medium.com/@meteatamel).