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@DevSil-Verachain DevSil-Verachain released this 21 Oct 01:02
· 1 commit to master since this release
v0.2.5-testnet
d8766c7

[0.2.5-testnet] - 2026-10-21

Networking release. Not consensus-breaking (consensus_breaking: false): blocks, votes and state transitions are unchanged, and v0.2.4.x and v0.2.5 nodes run side by side. Includes the v0.2.4.3 equivocation guard.

Automatic validator mesh (peer discovery)

  • A new validator needs one seed. Within seconds it connects directly to every other active validator, and the network keeps finalizing blocks when any single node (including the seed) goes down.
  • Each validator announces its P2P address, signed with its validator key (PeerAnnounce). Nodes accept an announcement only if it comes from an active validator of the on-chain set, so the governance allowlist is the only authorization list. Tampered, foreign-chain, stale (> 1 h) or non-validator announcements are dropped.
  • Nodes learn their own public IP from their peers (AddrHint), so no configuration is needed. Optional override: --external-addr <ip:port>.
  • Backward compatible: the handshake advertises a capability bit, and the new messages are only sent to peers that understand them.
  • A node that has its own address in its seed list now detects itself once and stops dialing it.
  • Operators: the P2P port (default 26656/tcp) must accept inbound connections from any IP. This includes the firewall of your hosting provider, not only ufw.

Automatic upgrades (opt-in, asked once)

  • vera-join.sh now asks once, after joining or upgrading: Enable automatic upgrades? [Y/n] (default yes). When enabled, the node checks for a new release once a day, verifies the GPG signature, installs it, and rolls back automatically if the health check fails. Consensus-breaking releases are never installed automatically.
  • Nothing is enabled without an answer at an interactive terminal. A "no" is remembered. Change it any time with sudo vera-join --enable-auto-upgrade or --disable-auto-upgrade.

Verified

  • Full test suite green (83 tests), including new peer-discovery tests: tamper detection, freshness window, old-handshake compatibility, and no discovery messages to old peers.
  • 5-validator devnet with a single seed: full mesh in 40 s, the chain kept finalizing after the seed was stopped, 0 forks, 20/20 transactions included. Mixed v0.2.4.3 + v0.2.5: no disconnections.
  • Running on both core validators since 2026-10-21.

Upgrade

sudo bash vera-join.sh --upgrade

Release Artifacts

Signed offline with the official VERA Core release key:

  • Fingerprint: 37F3 9BD8 9ADE E9EE E554 9C38 8974 19EF F806 BE51
  • Key Identity: Vera Core <dev@verachain.cloud>
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