# v3

Published articles for v3.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## 【etcd】MVCC 数据模型：Revision、keyIndex 与 generation

DevFeed: [【etcd】MVCC 数据模型：Revision、keyIndex 与 generation](<https://devfeed.tech/articles/etcd-mvcc-revision-keyindex-generation-33986.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/04-mvcc-model/04-mvcc-model.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: tutorial

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>)

Tags: [compaction](<https://devfeed.tech/tags/compaction.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [generation](<https://devfeed.tech/tags/generation.md>), [keyindex](<https://devfeed.tech/tags/keyindex.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [mvcc](<https://devfeed.tech/tags/mvcc.md>), [raft](<https://devfeed.tech/tags/raft.md>), [revision](<https://devfeed.tech/tags/revision.md>), [treeindex](<https://devfeed.tech/tags/treeindex.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5](<https://devfeed.tech/tags/v3-5.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This article analyzes etcd v3.5.33's MVCC data model through three concepts: globally ordered revisions, keyIndex generations that track key lifecycles, and the division of responsibilities between the in-memory treeIndex and the bbolt backend. It explains how these structures support historical Watch replay, transaction comparisons, compaction, and Kubernetes resourceVersion semantics, while distinguishing etcd revisions from Raft indexes.

### Source excerpt

拆解 etcd v3.5.33 的 Revision (main, sub) 全序、keyIndex/generation 生命周期与 treeIndex 分工；简要对照 v2 平面键空间，交代 MVCC 与 Watch/compaction 的语义基础。

## 【etcd】Lease 与 KeepAlive：TTL、checkpoint 与 Leader 切换

DevFeed: [【etcd】Lease 与 KeepAlive：TTL、checkpoint 与 Leader 切换](<https://devfeed.tech/articles/etcd-lease-keepalive-ttl-checkpoint-leader-33992.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/10-lease/10-lease.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: tutorial

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Remote Procedure Call (RPC)](<https://devfeed.tech/topics/rpc.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [checkpoint](<https://devfeed.tech/tags/checkpoint.md>), [client](<https://devfeed.tech/tags/client.md>), [concurrency](<https://devfeed.tech/tags/concurrency.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [follower](<https://devfeed.tech/tags/follower.md>), [k8s](<https://devfeed.tech/tags/k8s.md>), [keepalive](<https://devfeed.tech/tags/keepalive.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [lease](<https://devfeed.tech/tags/lease.md>), [lessor](<https://devfeed.tech/tags/lessor.md>), [primary](<https://devfeed.tech/tags/primary.md>), [raft](<https://devfeed.tech/tags/raft.md>), [ttl](<https://devfeed.tech/tags/ttl.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This article explains etcd v3.5.33 lease behavior, focusing on the lessor's primary, demote, and promote roles, the KeepAlive renewal path that normally bypasses Raft, lease checkpointing, and TTL changes during leader transitions. It also discusses implications for Kubernetes Node Leases and distributed locks.

### Source excerpt

钉 etcd v3.5.33 lessor 的 primary/demote/promote、KeepAlive 不经 Raft 的 Renew 路径、LeaseCheckpoint 与 Promote 时 TTL 展期，以及 Leader 切换对 Node Lease 的排障落格。

## 【etcd】运维与升级：member change、backup/restore 与 3.5-\>3.6/3.7 门

DevFeed: [【etcd】运维与升级：member change、backup/restore 与 3.5-\>3.6/3.7 门](<https://devfeed.tech/articles/etcd-member-change-backup-restore-3-5-3-6-3-7-33996.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/14-ops-upgrade/14-ops-upgrade.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: tutorial

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [upgrade](<https://devfeed.tech/topics/upgrade.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [migration](<https://devfeed.tech/topics/migration.md>)

Tags: [backup](<https://devfeed.tech/tags/backup.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [learner](<https://devfeed.tech/tags/learner.md>), [member-change](<https://devfeed.tech/tags/member-change.md>), [migration](<https://devfeed.tech/tags/migration.md>), [operations](<https://devfeed.tech/tags/operations.md>), [raft](<https://devfeed.tech/tags/raft.md>), [recovery](<https://devfeed.tech/tags/recovery.md>), [restore](<https://devfeed.tech/tags/restore.md>), [snapshot](<https://devfeed.tech/tags/snapshot.md>), [upgrade](<https://devfeed.tech/tags/upgrade.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5](<https://devfeed.tech/tags/v3-5.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [v3-6](<https://devfeed.tech/tags/v3-6.md>), [v3-7](<https://devfeed.tech/tags/v3-7.md>)

### AI overview

A Chinese-language operational guide to etcd v3.5.33 covering member replacement and learner promotion, live snapshot backup and restore, Kubernetes control-plane recovery, patch upgrades, and documented upgrade gates from etcd 3.5 to 3.6 and 3.7.

### Source excerpt

member add/remove/replace 与 learner promote 检查单；snapshot backup/restore 及 K8s 语境 revision bump；3.5.33 补丁线与 3.6/3.7 官方升级门禁项，不超前写未钉 tag 能力。

## 【etcd】单 Raft 组与服务器角色：Leader、Follower、Learner 与 request 路由

DevFeed: [【etcd】单 Raft 组与服务器角色：Leader、Follower、Learner 与 request 路由](<https://devfeed.tech/articles/etcd-raft-leader-follower-learner-request-33984.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/02-single-raft/02-single-raft.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: article

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [gRPC](<https://devfeed.tech/topics/grpc.md>)

Tags: [apiserver](<https://devfeed.tech/tags/apiserver.md>), [apply](<https://devfeed.tech/tags/apply.md>), [atomic](<https://devfeed.tech/tags/atomic.md>), [commit](<https://devfeed.tech/tags/commit.md>), [compaction](<https://devfeed.tech/tags/compaction.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [etcdserver](<https://devfeed.tech/tags/etcdserver.md>), [follower](<https://devfeed.tech/tags/follower.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [leader](<https://devfeed.tech/tags/leader.md>), [learner](<https://devfeed.tech/tags/learner.md>), [linearizable](<https://devfeed.tech/tags/linearizable.md>), [raft](<https://devfeed.tech/tags/raft.md>), [request](<https://devfeed.tech/tags/request.md>), [single-raft-group](<https://devfeed.tech/tags/single-raft-group.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5](<https://devfeed.tech/tags/v3-5.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [wal](<https://devfeed.tech/tags/wal.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This article explains how etcd v3.5.33 embeds a single Raft group, separates EtcdServer responsibilities from the Raft library, and routes requests across Leader, Follower, and Learner roles. It covers gRPC write forwarding, linearizable and serializable reads, and the handling of watch, lease, and mutating requests.

### Source excerpt

钉清 etcd v3.5.33 单 Raft 组拓扑、EtcdServer 与 go.etcd.io/raft/v3 边界、Leader/Follower/Learner 角色及 gRPC 写读路由；与 distributed/13 分工。

## 【etcd】选型收束与开放问题：排除树与系列边界关闭

DevFeed: [【etcd】选型收束与开放问题：排除树与系列边界关闭](<https://devfeed.tech/articles/etcd-33998.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/16-selection/16-selection.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: article

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>)

Tags: [apiserver](<https://devfeed.tech/tags/apiserver.md>), [backup](<https://devfeed.tech/tags/backup.md>), [compaction](<https://devfeed.tech/tags/compaction.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [exclusion-tree](<https://devfeed.tech/tags/exclusion-tree.md>), [foundationdb](<https://devfeed.tech/tags/foundationdb.md>), [guide](<https://devfeed.tech/tags/guide.md>), [k8s](<https://devfeed.tech/tags/k8s.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [lease](<https://devfeed.tech/tags/lease.md>), [open-questions](<https://devfeed.tech/tags/open-questions.md>), [raft](<https://devfeed.tech/tags/raft.md>), [selection](<https://devfeed.tech/tags/selection.md>), [tikv](<https://devfeed.tech/tags/tikv.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [zookeeper](<https://devfeed.tech/tags/zookeeper.md>)

### AI overview

This concluding article presents a mechanism-based decision tree for deciding when to retain etcd and when to migrate to TiKV or FoundationDB. It defines etcd's fit for small data sets with Watch and Lease dependencies, identifies disqualifying conditions such as quota pressure, sharding needs, cross-key transactions, Watch backpressure, and insufficient operational capacity, and clarifies the boundaries between related article series.

### Source excerpt

用机制排除树收束何时该留 etcd、何时迁 TiKV/FDB/ZK；回收 distributed/39、tikv-htap/18、foundationdb/18 的 etcd 叶；列出 Watch 背压、Lease+fencing、quota 迁移等开放问题；以 ADR 语言关闭续作边界。

## 【etcd】排障五轴：Raft/WAL/MVCC/Watch/Lease 口令表

DevFeed: [【etcd】排障五轴：Raft/WAL/MVCC/Watch/Lease 口令表](<https://devfeed.tech/articles/etcd-raft-wal-mvcc-watch-lease-33997.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/15-troubleshoot/15-troubleshoot.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: tutorial

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>)

Tags: [apiserver](<https://devfeed.tech/tags/apiserver.md>), [applied-index](<https://devfeed.tech/tags/applied-index.md>), [apply](<https://devfeed.tech/tags/apply.md>), [committed-index](<https://devfeed.tech/tags/committed-index.md>), [compaction](<https://devfeed.tech/tags/compaction.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [errcompacted](<https://devfeed.tech/tags/errcompacted.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [five-axes](<https://devfeed.tech/tags/five-axes.md>), [incident](<https://devfeed.tech/tags/incident.md>), [keepalive](<https://devfeed.tech/tags/keepalive.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [lag](<https://devfeed.tech/tags/lag.md>), [lease](<https://devfeed.tech/tags/lease.md>), [mvcc](<https://devfeed.tech/tags/mvcc.md>), [node-lease](<https://devfeed.tech/tags/node-lease.md>), [raft](<https://devfeed.tech/tags/raft.md>), [restore](<https://devfeed.tech/tags/restore.md>), [troubleshooting](<https://devfeed.tech/tags/troubleshooting.md>), [ttl](<https://devfeed.tech/tags/ttl.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5](<https://devfeed.tech/tags/v3-5.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [wal](<https://devfeed.tech/tags/wal.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This troubleshooting article organizes etcd failures into five diagnostic axes: Raft consensus, WAL persistence and recovery, MVCC storage and capacity, Watch client synchronization, and Lease TTL semantics. It maps symptoms to axes, explains relevant etcdctl health and status fields, and notes Kubernetes control-plane relationships, including apiserver and Node Lease behavior. The article is anchored to etcd v3.5.33.

### Source excerpt

按 Raft、WAL、MVCC、Watch、Lease 五轴做症状否证；解释 etcdctl endpoint status/health 字段语义；并对照 K8s 控制面 apiserver 超时与 Node Lease 漂移。

## 【etcd】Compaction、Defrag 与容量：quota、alarm 与 SLO

DevFeed: [【etcd】Compaction、Defrag 与容量：quota、alarm 与 SLO](<https://devfeed.tech/articles/etcd-compaction-defrag-quota-alarm-slo-33994.md>)

Original publisher: [Read original article](<https://quant67.com/post/etcd/12-compaction-quota/12-compaction-quota.html>)

Author: Liao Tonglang

Published: 2026-08-26T00:00:00Z

Content type: tutorial

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>)

Tags: [alarm](<https://devfeed.tech/tags/alarm.md>), [bbolt](<https://devfeed.tech/tags/bbolt.md>), [benchmark](<https://devfeed.tech/tags/benchmark.md>), [compaction](<https://devfeed.tech/tags/compaction.md>), [defrag](<https://devfeed.tech/tags/defrag.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [errcompacted](<https://devfeed.tech/tags/errcompacted.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [follower](<https://devfeed.tech/tags/follower.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [lag](<https://devfeed.tech/tags/lag.md>), [leader](<https://devfeed.tech/tags/leader.md>), [mvcc](<https://devfeed.tech/tags/mvcc.md>), [nospace](<https://devfeed.tech/tags/nospace.md>), [performance](<https://devfeed.tech/tags/performance.md>), [quota](<https://devfeed.tech/tags/quota.md>), [raft](<https://devfeed.tech/tags/raft.md>), [resourceversion](<https://devfeed.tech/tags/resourceversion.md>), [v3](<https://devfeed.tech/tags/v3.md>), [v3-5](<https://devfeed.tech/tags/v3-5.md>), [v3-5-33](<https://devfeed.tech/tags/v3-5-33.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This technical article explains how etcd v3.5.33 compaction, defragmentation, quota handling, and the NOSPACE alarm interact. It distinguishes revision-history removal from bbolt file reclamation, describes periodic and revision-based auto-compaction, and connects retention, quota, defrag pauses, and Watch or Kubernetes control-plane behavior to operational SLOs.

### Source excerpt

钉 etcd v3.5.33 MVCC compaction 与 bbolt defrag 的分工、auto-compaction 保留窗口、quota-backend-bytes 与 NOSPACE alarm 写入门，以及 ErrCompacted 如何写进 Watch SLO。

## Mikrotik Winbox 4.3 is out

DevFeed: [Mikrotik Winbox 4.3 is out](<https://devfeed.tech/articles/mikrotik-winbox-4-3-is-out-40185.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/resources/mikrotik-winbox-4-3-is-out/>)

Author: j2sw

Published: 2026-07-29T14:38:07Z

Content type: release

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [MikroTik](<https://devfeed.tech/topics/mikrotik.md>), [Windows](<https://devfeed.tech/topics/windows.md>), [Zip](<https://devfeed.tech/topics/zip.md>), [GUI](<https://devfeed.tech/topics/gui.md>), [layout](<https://devfeed.tech/topics/layout.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [feature](<https://devfeed.tech/tags/feature.md>), [file](<https://devfeed.tech/tags/file.md>), [form](<https://devfeed.tech/tags/form.md>), [input](<https://devfeed.tech/tags/input.md>), [layout](<https://devfeed.tech/tags/layout.md>), [mikrotik](<https://devfeed.tech/tags/mikrotik.md>), [network-engineering-resources](<https://devfeed.tech/tags/network-engineering-resources.md>), [performance](<https://devfeed.tech/tags/performance.md>), [redesign](<https://devfeed.tech/tags/redesign.md>), [render](<https://devfeed.tech/tags/render.md>), [right](<https://devfeed.tech/tags/right.md>), [sorting](<https://devfeed.tech/tags/sorting.md>), [table](<https://devfeed.tech/tags/table.md>), [toolbar](<https://devfeed.tech/tags/toolbar.md>), [ui](<https://devfeed.tech/tags/ui.md>), [v3](<https://devfeed.tech/tags/v3.md>), [version](<https://devfeed.tech/tags/version.md>), [widget](<https://devfeed.tech/tags/widget.md>), [winbox](<https://devfeed.tech/tags/winbox.md>), [windows](<https://devfeed.tech/tags/windows.md>), [zip](<https://devfeed.tech/tags/zip.md>)

### AI overview

MikroTik WinBox 4.3 is a release update that adds a Windows ARM64 package and introduces or improves table, form, toolbar, settings, font, login, window-selection, layout, and scrolling behavior.

### Source excerpt

What's new in 4.3 (2026-Jul-20 10:14): *) app: add Windows for arm64 version in file WinBox_Windows_arm64.zip;*) form: make multiline input field height logic as in WinBox v3;*) table: add quick comment feature (allow multi-row commenting);*) table: allow opening "Table settings" also via right mouse click;*) table: calculate implicit height to fit 16 regular rows including ... Read more The post Mikrotik Winbox 4.3 is out appeared first on Justin Wilson (j2sw).

## Fable 5 Launch Claims Tested Through Seven Experiments and 1,000+ Timed Runs

DevFeed: [Fable 5 Launch Claims Tested Through Seven Experiments and 1,000+ Timed Runs](<https://devfeed.tech/articles/claude-fable-5-the-ultimate-guide-for-pms-v3-39177.md>)

Original publisher: [Read original article](<https://www.productcompass.pm/p/claude-fable-5-guide>)

Author: Paweł Huryn

Published: 2026-06-11T04:28:43Z

Content type: comparison

Language: en

Sources: [The Product Compass](<https://devfeed.tech/sources/the-product-compass.md>)

Topics: [experiments](<https://devfeed.tech/topics/experiments.md>), [prompt](<https://devfeed.tech/topics/prompt.md>), [Claude](<https://devfeed.tech/topics/claude.md>)

Tags: [claude](<https://devfeed.tech/tags/claude.md>), [days](<https://devfeed.tech/tags/days.md>), [experiments](<https://devfeed.tech/tags/experiments.md>), [guide](<https://devfeed.tech/tags/guide.md>), [launch](<https://devfeed.tech/tags/launch.md>), [prompt](<https://devfeed.tech/tags/prompt.md>), [v3](<https://devfeed.tech/tags/v3.md>)

### AI overview

The article examines Fable 5 launch claims using seven experiments and more than 1,000 timed runs, covering claims that changed, the cost of producing a real finding, and an initial prompt to run.

### Source excerpt

Fable 5 is four days old. 7 experiments and 1,000+ timed runs later: the launch claims that flipped, what a real finding costs, and the first prompt you should run.

## 【分布式系统百科】分布式 KV 存储对比：etcd、TiKV 与 FoundationDB

DevFeed: [【分布式系统百科】分布式 KV 存储对比：etcd、TiKV 与 FoundationDB](<https://devfeed.tech/articles/kv-etcd-tikv-foundationdb-33978.md>)

Original publisher: [Read original article](<https://quant67.com/post/distributed/39-kv-stores/kv-stores.html>)

Author: Liao Tonglang

Published: 2026-04-13T00:00:00Z

Content type: comparison

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [etcd](<https://devfeed.tech/topics/etcd.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>)

Tags: [bbolt](<https://devfeed.tech/tags/bbolt.md>), [boltdb](<https://devfeed.tech/tags/boltdb.md>), [compaction](<https://devfeed.tech/tags/compaction.md>), [coreos](<https://devfeed.tech/tags/coreos.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [distributed-systems](<https://devfeed.tech/tags/distributed-systems.md>), [errcompacted](<https://devfeed.tech/tags/errcompacted.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [go](<https://devfeed.tech/tags/go.md>), [k8s](<https://devfeed.tech/tags/k8s.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [lease](<https://devfeed.tech/tags/lease.md>), [mmap](<https://devfeed.tech/tags/mmap.md>), [mvcc](<https://devfeed.tech/tags/mvcc.md>), [raft](<https://devfeed.tech/tags/raft.md>), [readindex](<https://devfeed.tech/tags/readindex.md>), [revision](<https://devfeed.tech/tags/revision.md>), [single-raft-group](<https://devfeed.tech/tags/single-raft-group.md>), [ssd](<https://devfeed.tech/tags/ssd.md>), [v3](<https://devfeed.tech/tags/v3.md>), [wal](<https://devfeed.tech/tags/wal.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This Chinese-language comparison examines etcd, TiKV, and FoundationDB as distributed key-value stores for metadata. It focuses on architecture, implementation, performance, and limitations, with detailed coverage of etcd's single Raft group, MVCC, Watch, Lease, bbolt storage engine, linearizable reads, compaction, and defragmentation.

### Source excerpt

一个典型的架构评审场景：团队需要一个分布式键值存储来承载新系统的元数据。候选方案三个----etcd、TiKV、FoundationDB。三者都提供强一致性保证，都经过大规模生产验证，但设计目标截然不同。选错了，轻则性能不达标，重则数据丢失后无法恢复。这篇文章从架构、实现、性能和局限四个维度，把三个系统拆开来看。

## svu v3 automates semantic versioning from Git tags and conventional commits

DevFeed: [svu v3 automates semantic versioning from Git tags and conventional commits](<https://devfeed.tech/articles/svu-v3-37856.md>)

Original publisher: [Read original article](<https://carlosbecker.com/posts/svu3/>)

Author: Carlos Alexandro Becker

Published: 2025-02-20T00:00:00Z

Content type: article

Language: en

Sources: [Carlos Becker](<https://devfeed.tech/sources/carlos-becker.md>)

Topics: [releases](<https://devfeed.tech/topics/releases.md>), [Code](<https://devfeed.tech/topics/code.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [dotfiles](<https://devfeed.tech/topics/dotfiles.md>)

Tags: [configuration](<https://devfeed.tech/tags/configuration.md>), [file](<https://devfeed.tech/tags/file.md>), [git](<https://devfeed.tech/tags/git.md>), [git-tags](<https://devfeed.tech/tags/git-tags.md>), [semantic](<https://devfeed.tech/tags/semantic.md>), [v3](<https://devfeed.tech/tags/v3.md>), [version](<https://devfeed.tech/tags/version.md>)

### AI overview

The article introduces svu, a tool and library that determines the next semantic version from Git tags and conventional commits. It describes svu v3, including an internal refactor, dependency updates, renamed or removed flags, and the ability to create a configuration file in a repository.

### Source excerpt

Back in 2017, I got tired of manually checking and creating git tags.

## Announcing Docusaurus 3.0

DevFeed: [Announcing Docusaurus 3.0](<https://devfeed.tech/articles/announcing-docusaurus-3-0-40940.md>)

Original publisher: [Read original article](<https://docusaurus.io/blog/releases/3.0>)

Author: Sébastien Lorber

Published: 2023-10-31T00:00:00Z

Content type: release

Language: en

Sources: [Docusaurus Blog](<https://devfeed.tech/sources/docusaurus-blog.md>)

Topics: [MDX](<https://devfeed.tech/topics/mdx.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [React](<https://devfeed.tech/topics/react.md>), [TypeScript](<https://devfeed.tech/topics/typescript.md>)

Tags: [changes](<https://devfeed.tech/tags/changes.md>), [compatibility](<https://devfeed.tech/tags/compatibility.md>), [dependencies](<https://devfeed.tech/tags/dependencies.md>), [id](<https://devfeed.tech/tags/id.md>), [maintenance](<https://devfeed.tech/tags/maintenance.md>), [mdx](<https://devfeed.tech/tags/mdx.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [npm](<https://devfeed.tech/tags/npm.md>), [react](<https://devfeed.tech/tags/react.md>), [release](<https://devfeed.tech/tags/release.md>), [typescript](<https://devfeed.tech/tags/typescript.md>), [upgrade](<https://devfeed.tech/tags/upgrade.md>), [v3](<https://devfeed.tech/tags/v3.md>)

### AI overview

Meta Open Source announces Docusaurus 3.0, a major release with upgraded dependencies and documented breaking changes. The release upgrades Node.js, React, MDX, and TypeScript versions, while Docusaurus 2 enters maintenance mode with security support for three months.

### Source excerpt

Today, we are happy to announce Docusaurus 3.0! 🥳