2.1.0-rc2 (October 12, 2026) SECURITY: Upgrade go version to 1.26.9 to address security vulnerabilities. [ GH-24010 ] deps: Upgrade github.com/hashicorp/raft-wal to v0.5.0 (with raft v1.8.0, serf v0.11.0, memberlist v0.7.0 and go-metrics v0.7.0), removing the dependency on github.com/coreos/etcd. [ GH-23985 ] deps: Upgrade golang.org/x/net to v0.60.0 to address GO-2026-6610, GO-2026-6611, GO-2026-6603, GO-2026-6617 and GO-2026-6612.