v1.21.0-rc1

1.21.0-rc1 (March 06, 2025)

SECURITY:

• Update golang.org/x/crypto to v0.35.0 to address GO-2025-3487. Update golang.org/x/oauth2 to v0.27.0 to address GO-2025-3488. Update github.com/go-jose/go-jose/v3 to v3.0.4 to address GO-2025-3485. [GH-22207]
• Upgrade Go to 1.23.6. [GH-22204]

FEATURES:

• config: add UseSNI flag in remote JSONWebKeySet agent: send TLS SNI in remote JSONWebKeySet [GH-22177]
• v2: remove HCP Link integration [GH-21883]

IMPROVEMENTS:

• raft: add a configuration raft_prevote_disabled to allow disabling raft prevote [GH-21758]
• raft: update raft library to 1.7.0 which include pre-vote extension [GH-21758]
• SubMatView: Log level change from ERROR to INFO for subject materialized view as subscription creation is retryable on ACL change. [GH-22141]
• ui: Adds a copyable token accessor/secret on the settings page when signed in [GH-22105]
• xDS: Log level change from ERROR to INFO for xDS delta discovery request. Stream can be cancelled on server shutdown and other scenarios. It is retryable and error is a superfluous log. [GH-22141]

BUG FIXES:

• logging: Fixed compilation error for OS NetBSD. [GH-22184]