getVersion

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getVersion reports the client version (solana-core) and a numeric feature-set identifier for the node that served the call. feature-set is a hash of the runtime features compiled into that build, letting clients detect compatible nodes without comparing version strings.

It confirms which client line a provider runs (Agave, Jito-Solana, Firedancer) and whether a fleet-wide upgrade has finished; every node reports the same feature-set once it has.

Plans & rate limitsAll plans

Free5/s

Operator50/s

Blade Runner200/s

Nexus500/s

Parameters

This method takes no parameters.

Result

resultobject

An object describing the responding node's client build.

Show propertiesProperties

solana-corestringrequired

Client version string, e.g. 4.3.0-rc.0.

feature-setinteger | null

32-bit identifier computed from the runtime features this build supports. Nodes must share a feature-set to be considered version-compatible for consensus purposes.

Notes

constant-k runs a current Agave/Jito build tracking the 4.x release line; expect solana-core and feature-set to change whenever the fleet upgrades.
Different requests can land on different backend nodes behind the same endpoint, so a rolling upgrade can briefly show two different feature-set values.

curl "https://rpc-newyork.constant-k.com/?api-key=YOUR_API_KEY" \  -X POST \  -H "Content-Type: application/json" \  -d '{ "jsonrpc": "2.0", "id": 1, "method": "getVersion" }'

{  "jsonrpc": "2.0",  "result": {    "feature-set": 2409014235,    "solana-core": "4.3.0-rc.0"  },  "id": 1}