tendermint/UPGRADING.md

Upgrading Tendermint Core

This guide provides steps to be followed when you upgrade your applications to a newer version of Tendermint Core.

Upgrading from 0.23.0 to 0.24.0

New 0.24.0 release contains a lot of changes to the state and types. It's not compatible to the old versions.

To reset the state do:

$ tendermint unsafe_reset_all

Config changes

p2p.max_num_peers was removed in favor of p2p.max_num_inbound_peers and p2p.max_num_outbound_peers.

# Maximum number of inbound peers
max_num_inbound_peers = 40

# Maximum number of outbound peers to connect to, excluding persistent peers
max_num_outbound_peers = 10

As you can see, the default ratio of inbound/outbound peers is 4/1. The reason as we want it to be easier for new nodes to connect to the network. You can tweak these parameters to alter the network topology.