# 🚨 URGENT: Klever Blockchain Mainnet Upgrade to v1.7.18 Required Immediately

**URL:** <https://forum.klever.org/t/urgent-klever-blockchain-mainnet-upgrade-to-v1-7-18-required-immediately/4444>\
**Category:** General Discussions\
**Tags:** kleverchain, validator\
**Created:** [June 3, 2026, 6:36pm UTC](https://forum.klever.org/t/urgent-klever-blockchain-mainnet-upgrade-to-v1-7-18-required-immediately/4444 "2026-06-03T18:36:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Duka](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.klever.org/duka/32/415_2.png) [@Duka](https://forum.klever.org/u/Duka)\
**Post date:** [June 3, 2026, 6:36pm UTC](https://forum.klever.org/t/urgent-klever-blockchain-mainnet-upgrade-to-v1-7-18-required-immediately/4444/1 "2026-06-03T18:36:31Z")

</div>

![image](https://europe1.discourse-cdn.com/flex013/uploads/klever/original/2X/6/61d8462b48697d1cddcde61689ef20e0e0123bc9.jpeg)

Dear Klever Blockchain [@Validators](https://forum.klever.org/groups/validators) , Node Operators, and Exchange Partners,

We are officially announcing the release of Klever Blockchain version **v1.7.18** on the Mainnet. This is a critical security update.

**Why This Update is Critical:**

This release focuses primarily on addressing critical security vulnerabilities. Due to the exact nature of these fixes, we strongly urge all network participants, specifically validators, node maintainers, and exchanges, to upgrade their infrastructure to this version **as soon as possible**. Securing the network requires collective, urgent action from all operators to maintain stability and safety.

**Upgrade Impact & Details:**

To facilitate a fast transition, this update has been designed to be applied immediately with zero downtime for chain logic:

- **No Hard Fork:** This update will not trigger a network fork.

- **No Epoch Activation:** It does not require waiting for a specific epoch activation.

- **No Configuration Changes:** You do not need to modify any of your existing configuration files.

For a comprehensive list of technical details, security fixes, and changes included in this version, please refer to the official release notes: [GitHub Release Notes v1.7.18](https://github.com/klever-io/klever-go/releases/tag/v1.7.18).

**Step-by-Step Upgrade Instructions:** Please access your node environment and execute the following commands precisely to complete the upgrade:

**1. Download new image version:**

Bash

```auto
docker pull kleverapp/klever-go:v1.7.18-0-g785b77c

```

**2. Update the permission of directories database:**

Bash

```auto
chown -R 999 $(pwd)/node/config
chown -R 999 $(pwd)/node/db
chown -R 999 $(pwd)/node/logs

```

**3. Stop and remove your current node:**

Bash

```auto
docker stop klever-node && docker rm klever-node

```

**4. Run your node again:**

Bash

```auto
docker run -it -d --restart unless-stopped \
    --user "$(id -u):$(id -g)" \
    --name klever-node \
    -v $(pwd)/node/config:/opt/klever-blockchain/config/node \
    -v $(pwd)/node/db:/opt/klever-blockchain/db \
    -v $(pwd)/node/logs:/opt/klever-blockchain/logs \
    --network=host \
    --entrypoint=/usr/local/bin/validator \
    kleverapp/klever-go:v1.7.18-0-g785b77c \
    '--log-save' '--use-log-view' '--rest-api-interface=0.0.0.0:8080'

```

If you face any issues during the deployment process, please contact the developer team immediately in our technical channels. Do not delay this update.

Thank you for your prompt cooperation in keeping the Klever network secure.

---

<div class="post-metadata">

**Author:** ![MathijsBok](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.klever.org/mathijsbok/32/3_2.png) [@MathijsBok](https://forum.klever.org/u/MathijsBok)\
**Post date:** [June 4, 2026, 8:19am UTC](https://forum.klever.org/t/urgent-klever-blockchain-mainnet-upgrade-to-v1-7-18-required-immediately/4444/2 "2026-06-04T08:19:59Z")

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All updated and running 👊