Bor v2.5.6 and Erigon v3.3.6

[Sanket_Polygon]

Hi all, we have released a new version of bor v2.5.6 and erigon v3.3.6 which defines the block number for the Dandeli hardfork on Mainnet, at block height 81424000 . The expected times for the hardfork is on Friday, Jan 09, 2026, 02:00 PM UTC . It adjusts the gas target calculations to mitigate gas price spikes and to increase effective network throughput.

Steps for upgrading Bor node

1. Stop bor service

   sudo service bor stop
   
   
   

2. Install Bor with a version tag, network name (mainnet), and node type (sentry, validator, or archive).

   # Replace the node type
   curl -L https://raw.githubusercontent.com/maticnetwork/install/main/bor.sh | bash -s -- v2.5.6 <network> <node_type>
   
   
   

3. Check bor version

   /usr/bin/bor version
   
   # It should print 
   # v2.5.6
   
   
   

4. Restart bor service

   sudo service bor start
   
   
   

What’s Changed

• backport by @marcello33 in #1919

• Fix parallel evm revert by @avalkov in #1918

• p2p: added functionality to temporarily ban peers to prevent connections by @pratikspatil024 in #1922

• chore: bump kurtosis-pos by @kamuikatsurgi in #1923

• backport v2.5.4 by @pratikspatil024 in #1926

• fix(miner): delete pending task after successful block sealing to prevent node stall by @kamuikatsurgi in #1929

• v2.5.5 release by @kamuikatsurgi in #1936

• chore: backport master to develop by @kamuikatsurgi in #1937

• Remove Recommit and Fix Parent Actual Time track on Prepare by @lucca30 in #1938

• chore: update deps by @kamuikatsurgi in #1939

• V2.5.6 candidate by @lucca30 in #1941

• Backport master to develop by @lucca30 in #1942

• Revert “V2.5.6 candidate” by @pratikspatil024 in #1947

• Revert “Backport master to develop” by @pratikspatil024 in #1948

• fix: ignore invalid signer error for specific block range by @avalkov in #1944

• fix(miner): track pending work using block number to avoid duplicate block building work by @kamuikatsurgi in #1943

• fix(rpc): maxFeePerGas and maxPriorityFeePerGas for StateSyncTx type by @kamuikatsurgi in #1952

• chore: bump kurtosis-pos by @kamuikatsurgi in #1954

• Fix missing chain validator service setup by @Raneet10 in #1957

• fix(api): traceBlock by @kamuikatsurgi in #1959

• Dandeli HF: modify block gas target calculations by @manav2401 in #1968

• v2.5.6 stable release by @pratikspatil024 in #1949

Full Changelog: v2.5.5…v2.5.6

Docker Images

You can find the latest docker images here:

Bor: https://hub.docker.com/r/0xpolygon/bor/tags

Heimdall:https://hub.docker.com/r/0xpolygon/heimdall/tags

Thanks,

Polygon Team

[bogales.finance]

Thanks for the update, just a contribution for some of the developer community in Africa. I recently tried to run my own RPC service using erigon here in rural South Africa and have failed because of poor connectivity and data storage limitation. As such, I wanted to know, are you able to also provide lite version of erigon which would be able to work for RPC services in environments where speed is limited to 1Mbps and disk-storage limited to 500 GB? Thanks for any response.