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release: v0.8.5 — durability hardening (AOF rewrites never drop acked writes) #456

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Merged
TinDang97 merged 1 commit into from
Aug 8, 2026
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release: v0.8.5 — durability hardening (AOF rewrites never drop acked writes) #456

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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [Unreleased]

## [0.8.5] — 2026-08-08

### Added
- **Cluster mode now works on the default (monoio) runtime — v0.9 W0/C-1
(#405).** The cluster control plane (bus listener, gossip ticker, failover
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2 changes: 1 addition & 1 deletion Cargo.lock
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2 changes: 1 addition & 1 deletion Cargo.toml
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@@ -1,6 +1,6 @@
[package]
name = "moon"
version = "0.8.4"
version = "0.8.5"
edition = "2024"
rust-version = "1.94"
description = "A high-performance Redis-compatible server written in Rust"
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3 changes: 2 additions & 1 deletion README.md
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Expand Up @@ -374,7 +374,8 @@ Redis 8.6.1.*
| **v0.8.1** | Deploy-safe busy-poll (O3 contention governor auto-gates on shared cores) + single-shard tuning preset | **GA** |
| **v0.8.2** | Storage kernel unification — one value codec / spill pipeline / eviction entry point / accessor skeleton, millisecond-TTL fidelity fix, batched sync-eviction manifest fsyncs | **GA** |
| **v0.8.3** | Connection plane at scale — idle conns 56.5 → 3.25 KB (−94%, task-exit parking + idle downshift + TLS diet), loud maxclients, striped registry, c1M-ready (1 M idle ≈ 3.3 GB) | **GA** |
| **v0.8.4** (current) | c1M follow-ups — TLS task-parking (47 → 26 KB idle), park/wake registry handoff, park-vs-error spin fix (RST'd parked conn no longer pins a shard) | **GA** |
| **v0.8.4** | c1M follow-ups — TLS task-parking (47 → 26 KB idle), park/wake registry handoff, park-vs-error spin fix (RST'd parked conn no longer pins a shard) | **GA** |
| **v0.8.5** (current) | Durability hardening — AOF rewrites never drop acked writes (overflow spill + exactly-once snapshot cut, adversarially verified), fail-loud WAL mid-chain tears, sticky append/fsync degraded latches, deep-review wave (LFU/LRU arithmetic, cluster election, silent-failure hardening) | **GA** |
| **v0.9** | Horizontal scale — cluster-on-monoio + multi-shard replicas | planned |
| **v1.0** | Every [`PRODUCTION-CONTRACT.md`](docs/PRODUCTION-CONTRACT.md) GA box ticked | gate |

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5 changes: 5 additions & 0 deletions RELEASES.md
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# Releases

## v0.8.5 — 2026-08-08
milestones: none (patch release: 2026-08 deep-review wave + durability wave 1)
waivers: none new — `XSHARD-READ-01` remains the open GA gap (ROADMAP R4), unchanged from v0.8.4.
evidence: Patch release rolling up the 2026-08 deep-review wave (#453) and durability wave 1 (#452/#54, PR #454), both merged after two-round adversarial review. Headline: AOF rewrites no longer drop acked writes under sustained load — a per-writer RewriteOverflow spill buffer with an exactly-once snapshot cut covers all six fold arms on both runtimes; merge-base A/B (tests/recovery_matrix_w1.rs) showed main losing ~5.6k acked writes per hit, fixed is exact across SIGKILL + recovery (251k appends through the overflow in the release-gate run). The re-verify round closed an abort-treated-as-commit P0 (aborted multi-shard fold discarded spills + false Synced acks), a same-key replay-inversion window, an ungated ordered-append leg, and taken-batch loss accounting; residual architectural findings tracked in #455. Also: WAL v3 mid-chain tears now abort boot (exit 70) instead of replaying past the hole (MOON_WAL_SALVAGE=1 override); sticky aof_last_append_status + per-writer aof_last_fsync_status latches; reason-DEL escalated backpressure with ONE shared bound per eviction sweep; manifest-sync failure latch keeps the AOF backstop until a newer snapshot persists; failed spill pwrite re-inserts the victim; eviction metadata widened (LFU decay/LRU inversion/OBJECT IDLETIME wrap/WATCH ABA); cluster election acks actually received + inline fast path disabled in cluster mode; CLIENT TRACKING max_keys enforced. Validation: fmt + clippy x2 feature sets, macOS monoio 4541 + tokio 3705 and VM Linux 4563 lib tests, rewrite-under-pipelined-load e2e green, PR CI green on both PRs pre-merge; crash-matrix nightly + ITERS=20 soak dispatched on the RC (b346910d), green before tag (soak-first-then-tag).

## v0.8.4 — 2026-07-29
milestones: none (patch release: c1M P1 follow-ups + the park-vs-error spin fix)
waivers: none new — `XSHARD-READ-01` remains the open GA gap (ROADMAP R4), unchanged from v0.8.3.
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