davidrusu · Oct 19, 2026 · Oct 10, 2026 · Oct 19, 2026
diff --git a/content/blockchain/updates/2026-10-05.md b/content/blockchain/updates/2026-10-05.md
@@ -0,0 +1,88 @@
+---
+title: 2026-10-05 Logos Blockchain weekly
+tags:
+  - blockchain-updates
+date: 2026-10-05
+lastmod: 2026-10-05
+draft: false
+description: Weekly update of Logos Blockchain
+---
+
+# Logos Blockchain Weekly Update - 2026-10-05
+
+## `blockchain:highlights`
+
+- **Testnet 0.3.0 released!** [node 0.3.0](https://github.com/logos-blockchain/logos-blockchain/releases/tag/0.3.0), [Logos Execution Zone v0.3.0](https://github.com/logos-blockchain/logos-execution-zone/releases/tag/v0.3.0)
+- **Hard fork support landed in the node: fork digest, era deployment settings, protocol names derived from the fork digest** [#3679](https://github.com/logos-blockchain/logos-blockchain/pull/3679), [#3683](https://github.com/logos-blockchain/logos-blockchain/pull/3683), [#3687](https://github.com/logos-blockchain/logos-blockchain/pull/3687), [#3689](https://github.com/logos-blockchain/logos-blockchain/pull/3689)
+- **Blend connection traffic bounded at the receiver RFC merged** [logos-lips#421](https://github.com/logos-co/logos-lips/pull/421)
+- **EmPoWering retarget bounds and pool funding RFC merged** [logos-lips#443](https://github.com/logos-co/logos-lips/pull/443)
+- **Zone SDK automatic refund of transactions on timeout merged** [#3704](https://github.com/logos-blockchain/logos-blockchain/pull/3704)
+- **Nimbos block validation hardened against denial of service** [nimbos#204](https://github.com/logos-co/nimbos/pull/204)
+
+## `blockchain:bedrock:research`
+
+- `blockchain:bedrock:research:cryptarchia`
+  - Blend connection traffic bounded at the receiver RFC merged [logos-lips#421](https://github.com/logos-co/logos-lips/pull/421); connection maintenance tightened after the implementation review: only verified messages count towards a connection's share, handshake time a core node parameter (draft) [logos-lips#468](https://github.com/logos-co/logos-lips/pull/468)
+  - Eras RFC extended: eras can change consensus parameters, transactions and protocol identifiers carry the fork digest (draft) [logos-lips#439](https://github.com/logos-co/logos-lips/pull/439)
+  - Strict EdDSA verification gas figures merged [logos-lips#464](https://github.com/logos-co/logos-lips/pull/464); multi-signature encoding swaps index and signature, merged [logos-lips#469](https://github.com/logos-co/logos-lips/pull/469); gossip topics clarified in the p2p network document, merged [logos-lips#466](https://github.com/logos-co/logos-lips/pull/466)
+
+- `blockchain:bedrock:research:empowering`
+  - Retarget bounds and pool funding RFC merged: reward retarget bounded below by ceil(F/(P-F)) and above by its genesis target, pool refilled from a share of fees with the accounting carried through genesis, rewards, and cryptoeconomics [logos-lips#443](https://github.com/logos-co/logos-lips/pull/443)
+  - Onboarding model extended so a fraction of mined tokens unlocks immediately, calculator and documentation updated [doc](https://www.overleaf.com/read/xqzvgkxbcvhn#75248b); slides summarising model parameters, derived quantities, and assumptions [slides](https://www.overleaf.com/read/ksqyvvxyszyq#f8a284)
+
+## `blockchain:bedrock:eng`
+
+- `blockchain:bedrock:eng:blend`
+  - Unordered warm buffer for Proof of Work Blend proofs, removing head-of-line blocking in prefetch, merged [#3678](https://github.com/logos-blockchain/logos-blockchain/pull/3678)
+  - Blend stability diagnostic scenarios for devnet and testnet-style tests merged [#3677](https://github.com/logos-blockchain/logos-blockchain/pull/3677)
+
+- `blockchain:bedrock:eng:node`
+  - Hard fork support merged: variant tags removed and block slot moved first in the header [#3679](https://github.com/logos-blockchain/logos-blockchain/pull/3679), deployment settings support multi-era definitions [#3683](https://github.com/logos-blockchain/logos-blockchain/pull/3683), fork digest computation [#3687](https://github.com/logos-blockchain/logos-blockchain/pull/3687), libp2p protocol names derived from the fork digest [#3689](https://github.com/logos-blockchain/logos-blockchain/pull/3689)
+  - u32::MAX enforced for canonical encodings so 32-bit and 64-bit architectures agree, merged [#3693](https://github.com/logos-blockchain/logos-blockchain/pull/3693); bounded sets integrated for UncleHeaders, Inputs, and Locators, merged [#3664](https://github.com/logos-blockchain/logos-blockchain/pull/3664)
+  - Chain sync peer selection made protocol-aware, merged [#3640](https://github.com/logos-blockchain/logos-blockchain/pull/3640); chain recovery restores the LIB with its real parent id (in-review) [#3719](https://github.com/logos-blockchain/logos-blockchain/pull/3719), [#3720](https://github.com/logos-blockchain/logos-blockchain/pull/3720)
+  - Mempool aligned with the RFC: transactions of every block newly entering the canonical chain retired (in-review) [#3734](https://github.com/logos-blockchain/logos-blockchain/pull/3734)
+  - Deferred proof typestate (in-review): each op types its deferred proof [#3732](https://github.com/logos-blockchain/logos-blockchain/pull/3732), deferred proofs pushed into the batch on verification [#3733](https://github.com/logos-blockchain/logos-blockchain/pull/3733), naming standardised [#3735](https://github.com/logos-blockchain/logos-blockchain/pull/3735), split per kind [#3736](https://github.com/logos-blockchain/logos-blockchain/pull/3736)
+  - Hierarchical deterministic wallet: passphrase primitive (in-review) [#3695](https://github.com/logos-blockchain/logos-blockchain/pull/3695); node integration drafted then shelved pending the private UTXO design [#3727](https://github.com/logos-blockchain/logos-blockchain/pull/3727)
+  - KMS message signing exposed over FFI for the module referral program (in-review) [#3744](https://github.com/logos-blockchain/logos-blockchain/pull/3744)
+  - `select!` cancellation safety revision merged [#3725](https://github.com/logos-blockchain/logos-blockchain/pull/3725); own spans emitted in the tracing crate macro, merged [#3543](https://github.com/logos-blockchain/logos-blockchain/pull/3543)
+  - Release checklist updated from the 0.3.0 release learnings [#3710](https://github.com/logos-blockchain/logos-blockchain/pull/3710); Rust toolchain bumped to 1.99 [#3729](https://github.com/logos-blockchain/logos-blockchain/pull/3729), [Overwatch#157](https://github.com/logos-co/Overwatch/pull/157)
+
+- `blockchain:bedrock:eng:testing`
+  - Cucumber invariants consolidated to cut CI cost, merged [#3672](https://github.com/logos-blockchain/logos-blockchain/pull/3672); mempool diagnostics transaction throughput improved (in-review) [#3741](https://github.com/logos-blockchain/logos-blockchain/pull/3741)
+  - Testing Framework integration unified around the app model, merged [#3681](https://github.com/logos-blockchain/logos-blockchain/pull/3681); shared port allocator (in-review) [#3706](https://github.com/logos-blockchain/logos-blockchain/pull/3706); Cucumber runner reusable across node implementations (in-review) [#3723](https://github.com/logos-blockchain/logos-blockchain/pull/3723); interoperability runners and mixed-cluster testing (in-review) [#3730](https://github.com/logos-blockchain/logos-blockchain/pull/3730)
+  - CI: redundant post-merge code checks avoided [#3714](https://github.com/logos-blockchain/logos-blockchain/pull/3714); merge-queue telemetry (in-review) [#3740](https://github.com/logos-blockchain/logos-blockchain/pull/3740)
+
+- `blockchain:bedrock:eng:zone-sdk`
+  - Automatic and m-of-n refund of transactions on timeout merged [#3704](https://github.com/logos-blockchain/logos-blockchain/pull/3704), after transaction status and subscription removal [#3703](https://github.com/logos-blockchain/logos-blockchain/pull/3703)
+  - λSQL: SQL execution bounded and displaced write recovery verifies the original write (in-review) [#3701](https://github.com/logos-blockchain/logos-blockchain/pull/3701)
+
+- `blockchain:bedrock:eng:logos-core`
+  - Testnet 0.3.0 released: node [0.3.0](https://github.com/logos-blockchain/logos-blockchain/releases/tag/0.3.0) and Logos Execution Zone [v0.3.0](https://github.com/logos-blockchain/logos-execution-zone/releases/tag/v0.3.0)
+  - Unique explorer database per deployment, merged [#3647](https://github.com/logos-blockchain/logos-blockchain/pull/3647); blockchain module client and Zone SDK backend pinned to the 0.3.0-rc.5 node [logos-blockchain-module#109](https://github.com/logos-blockchain/logos-blockchain-module/pull/109); generated client checked in CI (in-review) [logos-blockchain-module#107](https://github.com/logos-blockchain/logos-blockchain-module/pull/107)
+  - Logos Execution Zone indexer backend reworked into a default `http` feature (in-review) [#897](https://github.com/logos-blockchain/logos-execution-zone/pull/897)
+
+## `blockchain:logos-execution-zone`
+
+- `blockchain:logos-execution-zone:sequencer`
+  - Decentralized sequencing polish: incorrect slashing when many sequencers join at once fixed (in-review) [#944](https://github.com/logos-blockchain/logos-execution-zone/pull/944); head blocks marked on view entries (in-review) [#945](https://github.com/logos-blockchain/logos-execution-zone/pull/945); `sequencer_bootstrap` integration tests run sequentially, merged [#934](https://github.com/logos-blockchain/logos-execution-zone/pull/934)
+  - Read-only sequencer: FFI primitives unification (in-review) [#930](https://github.com/logos-blockchain/logos-execution-zone/pull/930), wallet statistics collection removed (in-review) [#940](https://github.com/logos-blockchain/logos-execution-zone/pull/940), read-only sequencer set up at wallet startup in the wallet FFI (draft) [#948](https://github.com/logos-blockchain/logos-execution-zone/pull/948)
+  - Transactional actors with side-effects (draft) [#935](https://github.com/logos-blockchain/logos-execution-zone/pull/935)
+
+- `blockchain:logos-execution-zone:cross-zone`
+  - Peer zone identity relies on Bedrock channel guarantees instead of the signing key, merged [#931](https://github.com/logos-blockchain/logos-execution-zone/pull/931)
+
+- `blockchain:logos-execution-zone:fees`
+  - Privacy-preserving transactions pay fees inside their proof, with transaction dry-runs for wallets to price any transaction (in-review) [#949](https://github.com/logos-blockchain/logos-execution-zone/pull/949)
+  - Public transaction fees journal written [logos-docs#514](https://github.com/logos-co/logos-docs/issues/514); private transaction fees scoped with a tracker [#941](https://github.com/logos-blockchain/logos-execution-zone/issues/941); transaction ordering by arrival vs nonce flagged for a dedicated fix [#942](https://github.com/logos-blockchain/logos-execution-zone/issues/942)
+  - Indexer and explorer modules use the `prove` feature for the indexer FFI, merged [#936](https://github.com/logos-blockchain/logos-execution-zone/pull/936)
+
+- `blockchain:logos-execution-zone:accounts`
+  - Chained calls added to effect application, so programs act on the latest state of an account, merged [#929](https://github.com/logos-blockchain/logos-execution-zone/pull/929)
+  - Program deployment hardening: WriteSegment requires authorization (draft) [#943](https://github.com/logos-blockchain/logos-execution-zone/pull/943); system builtins upgradable through the builtin loader (draft) [#946](https://github.com/logos-blockchain/logos-execution-zone/pull/946)
+  - Logos Execution Environment, Logos Execution Zone, and built-in program specs updated (draft) [#932](https://github.com/logos-blockchain/logos-execution-zone/pull/932)
+
+## `nimbos`
+
+- Block validation hardened against denial of service: staged multi-tier validation and cooperative asynchronous orphan promotion across Chain and BlockProcessor, merged [nimbos#204](https://github.com/logos-co/nimbos/pull/204)
+- Genesis validations merged [nimbos#203](https://github.com/logos-co/nimbos/pull/203); network key parsing fixed [nimbos#209](https://github.com/logos-co/nimbos/pull/209); Mantle encoding and decoding return explicit results instead of raising, merged [nimbos#201](https://github.com/logos-co/nimbos/pull/201)
+- Block header commits to `body_root`, aligning block ids with the spec (in-review) [nimbos#210](https://github.com/logos-co/nimbos/pull/210); deployment settings validation and genesis block creation (in-review) [nimbos#212](https://github.com/logos-co/nimbos/pull/212); GossipSub proposals ignored during initial block download (in-review) [nimbos#214](https://github.com/logos-co/nimbos/pull/214)