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Changelog

All notable changes to Zinder are documented in this file. Zinder releases one lockstep product version across its first-party crates, services, runtime images, and API artifacts.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.6.0] - 2026-08-10

Changed

  • Lightwalletd-compatible deployments now advertise transparent-address support only when their serving data can answer those requests. Startup rejects configurations that lack a transparent wallet projection or retained transaction bytes. (#71)
  • Document the production Testnet Zebra readiness calibration that keeps ordinary block gaps available while peer, sync, lag, and stale-tip failures remain fail-closed. (#73)

Fixed

  • Stale fixed-view mempool epochs now reach the typed view-expiration path so wallet consumers can reacquire the view without treating expected chain rotation as service unavailability. (#69)
  • Secondary query and projection processes no longer create thousands of short-lived storage threads per second while following the chain. (#72)

[0.5.0] - 2026-07-29

Added

  • Expose network upgrade activations through the native query API. (#16)
  • Add the optional Cipherscan-compatible explorer API adapter. (#15)
  • Ship the native WalletQuery API alongside the lightwalletd compatibility service. (#22)
  • Publish guarded amd64 and arm64 runtime images, API artifacts, and lockstep GitHub Releases from validated tags. (#24)
  • Add borrowed and Arc-owned chain snapshots that pin canonical wallet reads to one chain epoch and return typed refresh guidance when that epoch is unavailable. (#28)
  • Prepare zinder-core, zinder-proto, and zinder-client as a registry-ready Rust SDK catalog with hermetic protocol artifacts and standalone package verification. (#30)
  • Publish zinder-core, zinder-proto, and zinder-client from tagged releases through guarded crates.io trusted publishing with resumable source-provenance verification. (#31)
  • Publish deterministic x86-64-v3 and AArch64 GNU/Linux bundles containing the four supported Zinder runtime executables with checksums and build metadata. (#32)
  • Publish keyless signatures, SLSA provenance, and SPDX 2.3 SBOMs for Zinder GNU/Linux bundles and release images. (#33)
  • Run the canonical writer, the wallet projector, and the native WalletQuery reader as one supervised container against a single volume, for hosts that attach one volume per service. (#60)

Changed

  • Establish the fact-first RocksDB lifecycle with bounded catchup, projection workloads, and coherent checkpoint recovery. (#17)
  • Cut wallet serving over to canonical facts, projection-aware readiness, and native operational controls. (#18)
  • Replace transitional service and configuration names with the final ingest, projector, query, and compatibility vocabulary. (#19)
  • Require mempool snapshots to match the visible chain tip, bound ingestion and retention work, and treat ordinary tip movement as synchronization instead of a source failure. (#27)
  • Make zinder-client remote-first without RocksDB or storage dependencies, remove the unused storage-backed local adapter, and add typed network-upgrade discovery for chain-index consumers. (#29)
  • Update the Ironwood dependency stack and report the NU6.3 mainnet activation height in the Cipherscan migration overview. (#51)
  • Build the explorer materialized views inside the ingest runtime from canonical storage. The view store is built from genesis on first start, the [storage.materialized_views] RocksDB budget now also applies to zinder-ingest, and stores built with a checkpoint height do not host materialized views. (#52)
  • Certify live regtest and lightwalletd parity behavior against Zebra 6.2.2, including its current RPC consistency and security fixes. (#57)
  • Derive native WalletQuery capabilities from admitted storage and providers, fail invalid compositions before serving, and support the Regtest-certified source-built Zallet backend. Regtest JSON-RPC health treats a successful node tip observation as ready because the isolated chain has no public-network tip. Native contract revision 5 removes unauthenticated retention-duration fields from WalletServerInfo and replaces COMPACT_BLOCK_RANGE_TOO_LARGE with BLOCK_RANGE_TOO_LARGE; generated native clients must be regenerated. (#67)

Fixed

  • Preserve configured artifact-store contracts when canonical ingest opens or rebuilds storage. (#20)
  • Keep the ingest operations endpoint available after a reorg exceeds the configured window so operators can inspect the drained state and rebuild or restore without a crash loop. (#25)
  • Allow tagged release retries to find and resume an existing draft GitHub Release while still rejecting published releases and API failures. (#35)
  • Restore post-publication SDK verification against a fresh crates.io-only consumer. (#37)
  • Make release image publication wait for GHCR tag convergence and verify attestations with compatible strict identity constraints. (#39)
  • Keep deployment admission aligned with the strict release image attestation verifier. (#40)
  • Accept the compatibility image's declared native query dependency in release SBOM evidence. (#41)
  • Verify release archives and stable image promotion with compatible attestation identity selectors. (#43)
  • Check out the validated release commit before preparing draft GitHub Release assets. (#45)
  • Bind GitHub Release publication to the validated repository when the publication job runs without a checkout. (#47)
  • Correct six documented identifiers that no longer matched the shipped API, including the mempool cursor error, the subtree roots RPC, and the capability table name. (#50)
  • Expose typed wallet-sync capabilities through zinder-client, preserve cold admission when a block hash is displaced repeatedly, and provide a current-contract ExplorerQuery overlay that serves transaction detail and transparent activity without opening the canonical store. (#53)
  • Prevent the single-host ingest runtime from exhausting file descriptors while opening the canonical and Explorer materialized-view stores. (#54)
  • Keep the native WalletQuery service responsive under concurrent range reads; syncing wallets no longer lose their streams, and readiness stays answerable while a wallet catches up. (#60)

[0.4.0] - 2026-07-11

Zinder's release history before the changeset-style changelog is available in the repository at the v0.4.0 tag.