---
author: alex-grintsvayg
title: 'HF1807: A Hard Fork on July 9th, 2018'
date: '2018-06-05 07:00:00'
---

## What's Changing

LBRY is announcing hard fork HF1807. This fork will extend how long claims are valid before they expire. 
Currently, claims expire after about 1.5 years unless they are updated. After the fork takes effect, claims will expire after 10 years.
Existing claims that have not expired will have their expiration extended to 10 years.
Any claims that expire before the fork takes effect will stay expired. We will republish them manually to preserve access to that content.

Only claim expiration is changing. The block rewards, token distribution, hash algorithms, etc. are all staying the same.

The fork will take effect at block 400155, which will occur on July 9th, 2018 at around noon EST.

## What You Should Do

For most people, nothing needs to be done. The fork will take effect transparently and won't change your experience of LBRY.

**If you are running a full node or mining pool, upgrade to the latest version of lbrycrd as soon as possible**.
Pre-built binaries are available on [the releases page](https://github.com/lbryio/lbrycrd/releases). You will need version 0.12.2.0 or higher.

We will post updates about this fork to this page. If you want to be notified of news about this fork and future forks, please join the [fork mailing list](/forklist).

## Fork Details

The fork is explained in detail in [this pull request](https://github.com/lbryio/lbrycrd/pull/137), including the relevant code.
Please review the details and the code if you are able to.
We pay significant bounties for any bugs found in blockchain code, especially fork-related code. Email grin@lbry.io if you wish to discuss. 
