0xPolygon/heimdall-v2 - v0.5.3 New Hotfix

Published: Dec 12, 2025
Type: Hotfix

Release Summary

Heimdall version v0.5.3 has been released. This is an important update that all node operators are strongly encouraged to apply as soon as possible for all networks.

The key change in this release is an update to the CometBFT dependency, which incorporates a necessary fix. This upgrade is critical for node stability and security.


Additionally, this release includes a quality-of-life improvement for validators:

The SetValidatorDowntime command has been updated to make start and end timestamps optional. If you submit the command without specifying timestamps, the downtime will now default to starting 6 minutes into the future and will last for 6 minutes, simplifying the process.

Release Notes

## Description

In this release we ship a fix in cometBFT. It's recommended to all node operators to upgrade asap for all networks.

## What's Changed
* Submit SetValidatorDowntime without specifying timestamps by @avalkov in https://github.com/0xPolygon/heimdall-v2/pull/510
* backport by @marcello33 in https://github.com/0xPolygon/heimdall-v2/pull/512
* chore: bump kurtosis-pos by @kamuikatsurgi in https://github.com/0xPolygon/heimdall-v2/pull/513
* bump comet and cosmos by @marcello33 in https://github.com/0xPolygon/heimdall-v2/pull/516
* develop to main by @marcello33 in https://github.com/0xPolygon/heimdall-v2/pull/517


**Full Changelog**: https://github.com/0xPolygon/heimdall-v2/compare/v0.5.2...v0.5.3

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