The post Heimdall v2 Slashes Finality to 5 Seconds appeared on BitcoinEthereumNews.com.

The much-anticipated Heimdall v2 upgrade is expected to be launched by the Polygon PoS network on July 10, reducing finality from 90 seconds to approximately 5 seconds. This upgrade will result in a faster checkpoint, safer bridging, and an improved user experience.  Polygon PoS network is set to embark on the official launch of the Heimdall v2 consensus layer upgrade on July 10, just a few weeks after CNF reported its first migration on the Amoy testnet. According to Polygon Foundation CEO Sandeep Nailwal, this is the most technically complex hard fork since the launch of the mainnet in 2020. More About the Upgrade This upgrade is expected to see Heimdall shedding what Nailwal describes as “tech debt” from its previous build in the 2018/2019 period. From the information available, this will move from “Tendermint + Cosmos-SDK v0.37” to “CometBFT  + Cosmos-SDK v0.50”. Technically, the finality would significantly reduce to about 5 seconds from 90 seconds, while the block time would reduce from 5 to 6 seconds to about 2 seconds. On the day of the migration, the Polygon CEO warns that the Heimdall finality would likely lag by 3 hours. After the migration, there would be faster checkpoints, smoother user experience, and safer bridging. Above all, there would be “a headroom for future upgrades”, according to Nailwal. Meanwhile, node operators have been asked to prepare as the process could take about 30 minutes on the mainnet. With this, they have been asked to have about “20 GB RAM and 2× Heimdall disk free” on the day. According to a blog post, the Heimdall v2 would have a new Chain ID. Also, its initial block at genesis would reportedly be the last block that would be committed from the heimdall-v1 + 1. Bor will continue operating throughout the migration process, so the Polygon…

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Filed under: News - @ July 10, 2025 12:22 am