v1.7.15

This version should not be used in a production environment. v1.7.16 resolves a database leak introduced in this release.

This version is backwards compatible to v1.7.0. It is optional, but encouraged. The supported plugin version is 15.

PlatformVM

Replaced copy-on-write validator set data-structure to use tree diffs to optimize validator set additions
Replaced validation transactions with a standardized representation to remove transaction type handling
Migrated transaction execution to its own package
Removed child pointers from processing blocks
Added P-chain wallet helper for providing initial transactions

Bumped go-ethereum dependency to v1.10.20
Updated API names used to enable services in eth-api config flag. Prior names are supported but deprecated, please update configurations accordingly
Optimized state sync by parallelizing trie syncing
Added eth_syncing API for compatibility. Note: This API is only accessible after bootstrapping and always returns "false", since the node will no longer be syncing at that point
Added metrics to the atomic transaction mempool
Added metrics for incoming/outgoing mempool gossip

Updated Snowman and Avalanche consensus engines to report original container preferences before processing the provided container
Fixed inbound message byte throttler context cancellation cleanup
Removed case sensitivity of IP resolver services
Added failing health check when a whitelisted subnet fails to initialize a chain

Added gRPC client metrics for dynamically created connections
Added uninitialized continuous time averager for when initial predictions are unreliable
Updated linter version
Documented various platform invariants
Cleaned up various dead parameters
Improved various tests