Release v0.4.0

The engine's deployable build.

Node binaries and every chain runtime are not built here — they are
pinned in config/versions.env
and downloaded by ppn fetch from the release of the repo that
builds each one. This release only carries what has no upstream home.

Docker

docker run -p 10000-10030:10000-10030 -p 8545:8545 paritytech/previewnet-engine:v0.4.0

Upstream Pins

• bulletin: v0.0.23-paseo
• individuality: v0.3.1 — resolved from latest at release time
• paseo-runtimes: v2.4.4
• polkadot-sdk: polkadot-weekly2026w35-rc1 — resolved from latest at release time
• web3-storage: v0.4.1-paseo — resolved from latest at release time
• doppelganger (bite only): v0.2.1

Per-chain bindings: networks/previewnet.json

DotNS is not built here either — since dotns v0.5.6-rc1 its release carries
the pallet-revive genesis, and ppn fetch takes it from the tag
config/versions.env pins.

Device Uniqueness Backend

Not built here — ppn fetch takes the dub binary from
device-uniqueness-backend-community's
own release at the tag config/versions.env pins, and every service is a
--role of it: dub-api (all-in-one), device-attestation-chain-writer,
registration-queue and invite-tickets-pool.

Fork bundles

Not here: they live on the rolling bites
pre-release, refreshed nightly, which is where ppn fork fetch-bundle reads them.

What's Changed

• bulletin: promote HOP at half retention; drop slot-based authoring by @karolk91 in #11
• Resolve PPN_SECRETS_FILE where custom processes can see it by @mordamax in #13

New Contributors

• @karolk91 made their first contribution in #11

Full Changelog: v0.3.0...v0.4.0