v1.5.3

This version is backwards compatible with prior v1.5.x versions.

Uptime

• Changed minimum uptime requirement to receive a staking reward from 60% to 80%.

Networking

• Added 3 new network messages: AppRequest, AppResponse and AppGossip. These messages allow instances of a blockchain to send arbitrary data to each other as defined by their VM. Previously, instances of a blockchain could only communicate with one another by issuing blocks.
• Upon receipt of a Pong message, disconnect from the sender if their version is incompatible.
• Prepended method named in common.Sender with Send for clarity (e.g. Put --> SendPut).

P-Chain

• Added functionality to track changes in validator weight by block.
• Added API method GetValidatorsAt which allows for retrieval of a subnet's (or the Primary Network's) validator set at a given P-Chain height.

C-Chain

• Incorporate changes from Geth v1.10.8
• Remove references to Ancients

Consensus

• Added method Timestamp() to the snowman.Block interface.

Local Networks

• Updated the start time of the validators in the local genesis. The end time for validators specified in the local config in versions before v1.5.3 is Sep. 10, 2021 00:00:00 UTC. Because of this, you must upgrade to AvalancheGo v1.5.3 in order to run a local network after this time.

Config Options

• Added AvalancheGo config option consensus-app-gossip-size, which defines the number of peers an AppGossip message is gossiped to.
• Added C-Chain config option log-level. Options are: "trace", "debug", "info", "warn", "error", "crit". Defaults to "debug" (as before.)