Claude Code 并无 3.0：官方版本停在 2.1.309
「Claude Code 3.0」搜索量上涨但该版本不存在，官方 changelog 最新为 2.1.309，近期实际更新是 Code Review 分级、review stop 与 ultrareview 信任校验。
Searches for "claude code 3.0" went up 150% this week. Small problem: Claude Code 3.0 doesn't exist. The official changelog shows 2.1.309, released Oct 22. Before it .308, .307, .306, one or two a day. No 3.0 anywhere. And claude --version on your machine says the same thing. So where does the 3 come from? Thumbnails and aggregators. A video called "Claude Code 3.0 (All Upgrades Explained)" gets more clicks than "2.1.304: Code Review levels". What shipped instead is less exciting and more useful. 2.1.304 gave Code Review levels: Quick, Standard and Deep. 2.1.307 added claude review stop. 2.1.309 made ultrareview require workspace trust. Boring numbers, real changes. I kind of like it. Claude Code ships in small steps almost every day, so there's no big number to hang the hype on. People invent one. The check takes ten seconds: claude --version and the changelog. If a "new version" video can't name an exact number from the changelog, you can close it. Wonder how many people already "upgraded to 3.0" and didn't notice nothing changed.
这条是引用着另一条写的：x.com/vibelancer/status/2113263841538695409