v0.8.4

Which download do I need?

Two of them, and you only ever need one.

I want to…	Download
Run a node or validator (server, headless, no desktop)	helix-cli-… for your platform — unpack it and run helix start. No installer, no dependencies.
Use the wallet on my desktop (send, stake, explorer, run a node from the UI)	helix-gui-… for your platform. The wallet already contains the node — you do not need the CLI as well.

Which wallet installer?

• Linux — .AppImage runs anywhere without installing (make it executable and start it) · .deb for Debian/Ubuntu · .rpm for Fedora/RHEL
• macOS — .dmg (Apple Silicon)
• Windows — .exe is the normal installer · .msi is for managed/automated rollout

Running a validator?

Start the node first, confirm peer_count is above zero, and only then send the stake
transaction — see the founding-validator checklist in the
README. The wait itself is safe (a validator
serving its one-epoch activation delay is no longer charged with missed blocks), but a node
that isn't connected can't vote once it is activated.

Already jailed? Take this release before sending helix tx unjail — see below.

Validator operators: this release changes consensus

Downtime-jailing and the catch-up loop both changed. Nodes running different versions can
disagree about who is jailed, so all operators should update together. If you are currently
jailed, install this version first and unjail afterwards.

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What's in v0.8.4

a validator can finally stay in the set

Fixes the reason the network never had a working second validator: the periodic
RPC catch-up tore down the validator's own consensus round every few seconds, so
it never precommitted, never appeared in a commit certificate, and was jailed for
absence it was not responsible for.

Also closes the door underneath it — a proposer could jail any rival by leaving
its precommit out of the certificate. Convictions now require the certificate to
carry 2/3+1 of the voting power.

Consensus changed: all operators should update together, and anyone currently
jailed should install this before unjailing.

Full Changelog: v0.8.3...v0.8.4