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docs: sync to Claude Code v2.1.126 (six new releases since April 27) (#111)

Browse Source 
Bumps tutorial coverage from v2.1.119 → v2.1.126 (May 1, 2026 release).
v2.1.120 was rolled back on its first release day (2026-04-24) but
re-released 2026-04-28 with regressions fixed; v2.1.124/125 skipped.

New feature documentation:
- claude project purge (v2.1.126) — 10-cli
- claude plugin prune / --prune (v2.1.121) — 07-plugins, 10-cli
- claude ultrareview [target] (v2.1.120) — 10-cli
- ${CLAUDE_EFFORT} placeholder + type-to-filter /skills (v2.1.120-121) — 03-skills
- alwaysLoad MCP server config option (v2.1.121) — 05-mcp
- PostToolUse.updatedToolOutput for non-MCP tools (v2.1.121) — 06-hooks
- ANTHROPIC_BEDROCK_SERVICE_TIER, AI_AGENT env vars — 10-cli
- --dangerously-skip-permissions extended path coverage — 09-advanced-features
- Windows PowerShell-as-primary-shell + /model gateway discovery (v2.1.126)
- OAuth code paste fallback (v2.1.126) — 10-cli

Fixes:
- xhigh missing from 03-skills effort enum (regression from April 24)
- README.md latest-version claims (lines 105, 204) and version badge
- CHANGELOG.md v2.4.0 stale "v2.1.120 was rolled back" paragraph

Footer refresh: 22 in-scope English files bumped to May 2, 2026 / 2.1.126.
Localized vi/zh/uk/ja trees out of scope (community-maintained).
This commit is contained in:
Luong NGUYEN
2026-05-03 00:07:51 +02:00
committed by GitHub
parent c78305971e
commit 0f8012c36e
22 changed files with 216 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files
01-slash-commands/README.md
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@@ -601,8 +601,8 @@ If both exist with the same name, the **skill takes precedence**. Remove one or
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/slash-commands
- https://code.claude.com/docs/en/interactive-mode
02-memory/README.md
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@@ -1198,11 +1198,11 @@ For the most up-to-date information, refer to the official Claude Code documenta
- [Official Memory Docs](https://code.claude.com/docs/en/memory) - Anthropic documentation
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/memory
- https://code.claude.com/docs/en/settings
- https://github.com/anthropics/claude-code/releases/tag/v2.1.117
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
03-skills/README.md
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@@ -150,7 +150,7 @@ disable-model-invocation: true # Only user can invoke
user-invocable: false # Hide from slash menu
allowed-tools: Read, Grep, Glob # Restrict tool access
model: opus # Specific model to use
effort: high # Effort level override (low, medium, high, max)
effort: high # Effort level override (low, medium, high, xhigh, max)
context: fork # Run in isolated subagent
agent: Explore # Which agent type (with context: fork)
shell: bash # Shell for commands: bash (default) or powershell
@@ -173,7 +173,7 @@ paths: "src/api/**/*.ts" # Glob patterns limiting when skill activ
| `user-invocable` | `false` = hidden from the `/` menu. Only Claude can invoke it automatically. |
| `allowed-tools` | Comma-separated list of tools the skill may use without permission prompts. |
| `model` | Model override while the skill is active (e.g., `opus`, `sonnet`). |
| `effort` | Effort level override while the skill is active: `low`, `medium`, `high`, or `max`. |
| `effort` | Effort level override while the skill is active: `low`, `medium`, `high`, `xhigh`, or `max`. Available levels depend on the model — `xhigh` is the Claude Code default for Opus 4.7. |
| `context` | `fork` to run the skill in a forked subagent context with its own context window. |
| `agent` | Subagent type when `context: fork` (e.g., `Explore`, `Plan`, `general-purpose`). |
| `shell` | Shell used for `!`command`` substitutions and scripts: `bash` (default) or `powershell`. |
@@ -242,6 +242,7 @@ Skills support dynamic values that are resolved before the skill content reaches
| `$ARGUMENTS[N]` or `$N` | Access specific argument by index (0-based) |
| `${CLAUDE_SESSION_ID}` | Current session ID |
| `${CLAUDE_SKILL_DIR}` | Directory containing the skill's SKILL.md file |
| `${CLAUDE_EFFORT}` | Current effort level (`low`, `medium`, `high`, `xhigh`, or `max`). Useful for branching skill behavior: e.g., `[ "${CLAUDE_EFFORT}" = "max" ] && deep_analysis` (v2.1.120+) |
| `` !`command` `` | Dynamic context injection — runs a shell command and inlines the output |
**Example:**
@@ -598,6 +599,8 @@ ls ~/.claude/skills/
ls .claude/skills/
```
> **Tip (v2.1.121+):** Type to filter the `/skills` interactive menu — useful when many skills are installed.
### Testing a Skill
Two ways to test:
@@ -820,8 +823,8 @@ Once you start building skills seriously, two things become essential: a library
- [Hooks Guide](../06-hooks/) - Event-driven automation
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/skills
- https://code.claude.com/docs/en/settings
04-subagents/README.md
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@@ -1217,11 +1217,11 @@ graph TD
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/sub-agents
- https://code.claude.com/docs/en/agent-teams
- https://github.com/anthropics/claude-code/releases/tag/v2.1.117
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
05-mcp/README.md
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@@ -207,6 +207,27 @@ When MCP tool descriptions exceed 10% of the context window, Claude Code automat
> **Note:** Tool search requires Sonnet 4 or later, or Opus 4 or later. Haiku models are not supported for tool search.
### Bypassing Tool Search per Server (v2.1.121+)
If a particular MCP server's tools are needed on every turn, mark its
configuration with `"alwaysLoad": true` to skip tool-search deferral and
keep its tools always available:
```json
{
"mcpServers": {
"always-on-tool": {
"command": "node",
"args": ["./tools/always.js"],
"alwaysLoad": true
}
}
}
```
Use sparingly — every always-loaded tool consumes context that could
otherwise be used for tool search to surface a more relevant tool.
## Dynamic Tool Updates
Claude Code supports MCP `list_changed` notifications. When an MCP server dynamically adds, removes, or modifies its available tools, Claude Code receives the update and adjusts its tool list automatically -- no reconnection or restart required.
@@ -1111,8 +1132,8 @@ export GITHUB_TOKEN="your_token"
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/mcp
- https://code.claude.com/docs/en/changelog
06-hooks/README.md
+14 -3
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@@ -523,6 +523,17 @@ All hooks receive JSON input via stdin:
}
```
> **Scope (v2.1.121+):** `hookSpecificOutput.updatedToolOutput` is now honored for **all** tools, not just MCP tools. A `PostToolUse` hook on `Bash`, `Edit`, `Read`, etc. can rewrite the tool's output before Claude sees it — useful for redacting secrets, normalizing diffs, or filtering noisy command output. Example (strip ANSI color codes from a `Bash` output):
>
> ```json
> {
> "hookSpecificOutput": {
> "hookEventName": "PostToolUse",
> "updatedToolOutput": "<plain-text output with ANSI escapes removed>"
> }
> }
> ```
## Environment Variables
| Variable | Availability | Description |
@@ -1355,11 +1366,11 @@ Edit `~/.claude/settings.json` or `.claude/settings.json` with the hook configur
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/hooks
- https://code.claude.com/docs/en/changelog
- https://github.com/anthropics/claude-code/releases/tag/v2.1.118
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
07-plugins/README.md
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@@ -660,10 +660,14 @@ claude plugin enable <name> # Enable a disabled plugin
claude plugin disable <name> # Disable a plugin
claude plugin validate # Validate plugin structure
claude plugin tag <version> # Create a release git tag with version validation (v2.1.118+)
claude plugin prune # Remove orphaned auto-installed plugin dependencies (v2.1.121+)
claude plugin uninstall <name> --prune # Uninstall and cascade-clean orphaned dependencies (v2.1.121+)
```
Example: `claude plugin tag v0.3.0` validates the version format, creates the matching git tag, and is the recommended way to cut plugin releases for distribution.
`claude plugin prune` is useful after installing or uninstalling marketplace plugins that pulled in their own dependencies — it removes any auto-installed plugins whose parent plugin has since been removed. `plugin uninstall --prune` does the same cascade in a single step.
## Installation Methods
### From Marketplace
@@ -1033,12 +1037,12 @@ The following Claude Code features work together with plugins:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/plugins
- https://code.claude.com/docs/en/plugin-marketplaces
- https://github.com/anthropics/claude-code/releases/tag/v2.1.117
- https://github.com/anthropics/claude-code/releases/tag/v2.1.118
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
07-plugins/devops-automation/README.md
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@@ -108,9 +108,9 @@ Result:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/plugins
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
07-plugins/documentation/README.md
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@@ -120,9 +120,9 @@ export GITHUB_TOKEN="your_github_token"
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/plugins
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
07-plugins/pr-review/README.md
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@@ -92,9 +92,9 @@ Result:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/plugins
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
08-checkpoints/README.md
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@@ -325,8 +325,8 @@ Remember: checkpoints are not a replacement for git. Use checkpoints for rapid e
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/checkpointing
- https://code.claude.com/docs/en/settings
09-advanced-features/README.md
+6 -2
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@@ -807,6 +807,10 @@ Permission modes control what actions Claude can take without explicit approval.
Cycle through modes with `Shift+Tab` in the CLI. Set a default with the `--permission-mode` flag or the `permissions.defaultMode` setting.
> **`--dangerously-skip-permissions` extended path coverage (v2.1.121, v2.1.126)**: The `--dangerously-skip-permissions` CLI flag (and equivalent `bypassPermissions` mode) now bypasses prompts for writes to a much broader allowlist — `.claude/skills/`, `.claude/agents/`, `.claude/commands/`, `.claude/`, `.git/`, `.vscode/`, and shell config files. Catastrophic removal commands (`rm -rf /`, etc.) still prompt regardless of mode. Treat the flag as a sharper tool than before; use it only in throwaway sandboxes.
> **Windows shell detection (v2.1.120, v2.1.126)**: Git for Windows / Git Bash is no longer required. When Git Bash is absent, Claude Code uses PowerShell as the shell tool. From v2.1.126 PowerShell is the *primary* shell when the PowerShell tool is enabled, and detection covers PowerShell 7 installed via the Microsoft Store, MSI without PATH, or as a `.NET global tool`.
### Activation Methods
**Keyboard shortcut**:
@@ -2162,8 +2166,8 @@ For more information about Claude Code and related features:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/permission-modes
- https://code.claude.com/docs/en/interactive-mode
10-cli/README.md
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@@ -56,8 +56,11 @@ The older JavaScript bundle is still produced for Windows and for environments t
| `claude remote-control` | Start Remote Control server | `claude remote-control` |
| `claude plugin` | Manage plugins (install, enable, disable) | `claude plugin install my-plugin` |
| `claude plugin tag <version>` | Create a release git tag for a plugin with version validation (v2.1.118+) | `claude plugin tag v0.3.0` |
| `claude install [version]` | Install a specific native-binary version. Accepts `stable`, `latest`, or an explicit version string | `claude install 2.1.119` |
| `claude auth login` | Log in (supports `--email`, `--sso`) | `claude auth login --email user@example.com` |
| `claude install [version]` | Install a specific native-binary version. Accepts `stable`, `latest`, or an explicit version string | `claude install 2.1.126` |
| `claude project purge [path]` | Delete all local Claude Code state for a project (transcripts, tasks, debug logs, file-edit history, prompt history, and `~/.claude.json` entry). Omit `[path]` for an interactive picker. Flags: `--dry-run` to preview, `-y/--yes` to skip confirmation, `-i/--interactive` to confirm each item, `--all` for every project (v2.1.126+) | `claude project purge ~/work/repo --dry-run` |
| `claude plugin prune` | Remove orphaned auto-installed plugin dependencies (parent plugin gone). `plugin uninstall --prune` does the same cascade after uninstalling a target (v2.1.121+) | `claude plugin prune` |
| `claude ultrareview [target]` | Run `/ultrareview` non-interactively. Prints findings to stdout, exits 0 on success / 1 on failure. Use `--json` for raw payload, `--timeout <minutes>` to override the 30-minute default (v2.1.120+) | `claude ultrareview 1234 --json` |
| `claude auth login` | Log in (supports `--email`, `--sso`). Since v2.1.126, accepts the OAuth code pasted into the terminal as a fallback when the browser callback can't reach localhost (WSL2, SSH, containers) | `claude auth login --email user@example.com` |
| `claude auth logout` | Log out of current account | `claude auth logout` |
| `claude auth status` | Check auth status (exit 0 if logged in, 1 if not) | `claude auth status` |
@@ -147,6 +150,8 @@ claude -p --model opus --fallback-model sonnet "analyze architecture"
claude --model opusplan "design and implement the caching layer"
```
> **Gateway model discovery (v2.1.126+)**: When `ANTHROPIC_BASE_URL` points at an Anthropic-compatible gateway, `/model` populates its picker from the gateway's `/v1/models` endpoint instead of the hard-coded list — useful for self-hosted proxies that expose a different model lineup.
## System Prompt Customization
| Flag | Description | Example |
@@ -320,6 +325,21 @@ claude -r "feature-auth" --fork-session "test with different architecture"
The original session remains unchanged, and the fork becomes a new independent session.
### Project State Cleanup (v2.1.126+)
`claude project purge` deletes all local Claude Code state for a project — transcripts, task lists, debug logs, file-edit history, prompt history lines, and the project's `~/.claude.json` entry. Use `--dry-run` first to preview the deletion; `--all` walks every project on the machine.
```bash
# Preview what would be deleted (safe)
claude project purge ~/work/repo --dry-run
# Delete state for a specific project, no prompts
claude project purge ~/work/repo --yes
# Walk every project interactively
claude project purge --all --interactive
```
## Advanced Features
| Flag | Description | Example |
@@ -505,6 +525,16 @@ pipeline {
}
```
**Headless `ultrareview` (v2.1.120+):**
```yaml
# .github/workflows/ultrareview.yml
- name: Claude ultrareview
run: claude ultrareview ${{ github.event.pull_request.number }} --json > review.json
```
`claude ultrareview` exits 0 on a clean review and 1 when findings are reported, so it's a drop-in PR gate. Use `--timeout <minutes>` to override the 30-minute default.
### 2. Script Piping
Process files, logs, and data through Claude for analysis.
@@ -761,6 +791,8 @@ The "ultrathink" keyword in prompts activates deep reasoning. The `max` effort l
| `CLAUDE_CODE_HIDE_CWD` | When set to `1`, hides the current working directory in the startup logo (privacy / screen-share use) (v2.1.119+) |
| `CLAUDE_CODE_FORK_SUBAGENT` | Set to `1` to enable forked subagents on external builds (Bedrock, Vertex, Foundry). No effect on Anthropic API where forked subagents are GA (v2.1.117+) |
| `OTEL_LOG_TOOL_DETAILS` | Set to `1` to unredact custom and MCP command names in OpenTelemetry events (v2.1.117+). Redaction remains the default. |
| `ANTHROPIC_BEDROCK_SERVICE_TIER` | Selects the Bedrock service tier: `default`, `flex`, or `priority` (v2.1.122+) |
| `AI_AGENT` | Set automatically on subprocesses so external CLIs (e.g., `gh`) can attribute traffic to Claude Code (v2.1.120+) |
> **`ENABLE_TOOL_SEARCH` on Vertex AI (v2.1.119+)**: Tool search is **disabled by default on Google Cloud Vertex AI** deployments. Users who want the tool-search capability on Vertex must explicitly opt in with `export ENABLE_TOOL_SEARCH=true`. On direct Anthropic API it remains enabled by default.
@@ -868,8 +900,8 @@ claude -p --output-format json "query"
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/cli-reference
- https://code.claude.com/docs/en/settings
@@ -879,5 +911,5 @@ claude -p --output-format json "query"
- https://github.com/anthropics/claude-code/releases/tag/v2.1.116
- https://github.com/anthropics/claude-code/releases/tag/v2.1.117
- https://github.com/anthropics/claude-code/releases/tag/v2.1.118
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
CATALOG.md
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@@ -530,8 +530,8 @@ chmod +x ~/.claude/hooks/*.sh
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/commands
CHANGELOG.md
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@@ -1,12 +1,89 @@
# Changelog
## [v2.5.0] — 2026-05-02
### Synced to Claude Code v2.1.126
Bumps tutorial coverage from Claude Code v2.1.119 → v2.1.126 (May 1, 2026 release).
v2.1.120 was rolled back on its first release day (2026-04-24) but re-released
successfully on 2026-04-28 with the originally-reported regressions fixed.
v2.1.124 and v2.1.125 were skipped by Anthropic and never released.
### Added (English docs)
- `claude project purge [path]` subcommand (v2.1.126) — deletes all Claude Code
state for a project (transcripts, tasks, debug logs, file-edit history,
prompt history, `~/.claude.json` entry). Supports `--dry-run`, `-y/--yes`,
`-i/--interactive`, `--all`. Documented in `10-cli/README.md`.
- `claude plugin prune` subcommand (v2.1.121) — removes orphaned auto-installed
plugin dependencies; `plugin uninstall --prune` cascades. Documented in
`07-plugins/README.md`.
- `claude ultrareview [target]` subcommand (v2.1.120) — runs `/ultrareview`
non-interactively from CI/scripts, prints findings to stdout, exits 0/1 on
success/failure; supports `--json` and `--timeout <minutes>`. Documented in
`10-cli/README.md`.
- `${CLAUDE_EFFORT}` placeholder available inside skill content (v2.1.120) —
resolves to the current effort level. Documented in `03-skills/README.md`.
- `alwaysLoad` MCP server config option (v2.1.121) — when `true`, all tools
from that server skip tool-search deferral. Documented in `05-mcp/README.md`.
- `PostToolUse.hookSpecificOutput.updatedToolOutput` now works for all tools
(v2.1.121), previously MCP-only. Documented in `06-hooks/README.md`.
- `ANTHROPIC_BEDROCK_SERVICE_TIER` environment variable (v2.1.122) — selects
Bedrock service tier (`default`, `flex`, `priority`). Documented in
`10-cli/README.md` env-var table.
- `--dangerously-skip-permissions` extended-path coverage (v2.1.121, v2.1.126)
— now bypasses prompts for writes to `.claude/skills/`, `.claude/agents/`,
`.claude/commands/`, `.claude/`, `.git/`, `.vscode/`, shell config files.
Catastrophic removal commands (`rm -rf /` etc.) still prompt. Documented in
`09-advanced-features/README.md` permission-modes section.
- OAuth code paste fallback (v2.1.126) — `claude auth login` accepts the OAuth
code pasted into the terminal when the browser callback can't reach
localhost (WSL2, SSH, containers). Documented in `10-cli/README.md`.
- Type-to-filter `/skills` menu (v2.1.121). Documented in `03-skills/README.md`.
- `AI_AGENT` environment variable (v2.1.120) — set on subprocesses so `gh` can
attribute traffic to Claude Code. Documented in `10-cli/README.md` env-var
table.
### Changed
- `--from-pr` (v2.1.119) and `/resume` PR-URL search (v2.1.122) now both
support GitHub, GitHub Enterprise, GitLab, and Bitbucket URLs.
- Windows: Git for Windows / Git Bash no longer required (v2.1.120) — Claude
Code uses PowerShell as the shell tool when Git Bash is absent. From v2.1.126,
PowerShell is the primary shell when the PowerShell tool is enabled. Detection
extended to PowerShell 7 installed via Microsoft Store, MSI without PATH, or
`.NET global tool`. Documented in `09-advanced-features/README.md` platform
notes.
- `/model` picker now lists models from your gateway's `/v1/models` endpoint
when `ANTHROPIC_BASE_URL` points at an Anthropic-compatible gateway
(v2.1.126). Documented in `10-cli/README.md`.
- `--dangerously-skip-permissions` no longer prompts for writes to a much
broader allowlist (see Added). Catastrophic removals still prompt.
- Image paste auto-downscale (v2.1.126) — images larger than 2000px are
downscaled on paste; oversized images in history are auto-removed and the
request retried. (Tutorial-relevant only as a safety/UX note.)
### Security
- Fixed `allowManagedDomainsOnly` / `allowManagedReadPathsOnly` being ignored
when a higher-priority managed-settings source lacked a `sandbox` block
(v2.1.126).
### Notes for translation maintainers
The `vi/`, `zh/`, `uk/`, and `ja/` localized trees are community-maintained
and may lag the English source. Contributors syncing translations should diff
against the English files updated in this release.
## [v2.4.0] — 2026-04-27
### Synced to Claude Code v2.1.119
Bumps tutorial coverage from Claude Code v2.1.112 → v2.1.119 (April 23, 2026 release).
v2.1.120 was published April 24 and rolled back due to regressions; clients are
auto-rolled back to v2.1.119, which remains the stable target.
v2.1.120 was published April 24, briefly rolled back the same day due to regressions,
and re-released on April 28 with fixes — it is now part of the normal release line.
A subsequent v2.1.126 (May 1, 2026) is the next stable target and is covered in the
v2.5.0 entry above.
### Added (English docs)
INDEX.md
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@@ -874,13 +874,13 @@ Want to add more examples? Follow the structure:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/hooks
- https://code.claude.com/docs/en/commands
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
**Total Examples**: 100+ files
**Categories**: 10 features
LEARNING-ROADMAP.md
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@@ -738,12 +738,12 @@ Once you've completed all milestones:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/hooks
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
**Maintained by**: Claude How-To Contributors
**License**: Educational purposes, free to use and adapt
QUICK_REFERENCE.md
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@@ -505,11 +505,11 @@ Getting started checklist:
**This Card**: Keep it handy for quick reference!
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/hooks
- https://code.claude.com/docs/en/commands
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
README.md
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@@ -12,7 +12,7 @@
[![GitHub Stars](https://img.shields.io/github/stars/luongnv89/claude-howto?style=flat&color=gold)](https://github.com/luongnv89/claude-howto/stargazers)
[![GitHub Forks](https://img.shields.io/github/forks/luongnv89/claude-howto?style=flat)](https://github.com/luongnv89/claude-howto/network/members)
[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
[![Version](https://img.shields.io/badge/version-2.1.119-brightgreen)](CHANGELOG.md)
[![Version](https://img.shields.io/badge/version-2.1.126-brightgreen)](CHANGELOG.md)
[![Claude Code](https://img.shields.io/badge/Claude_Code-2.1+-purple)](https://code.claude.com)
🌐 **Language / Ngôn ngữ / 语言 / Мова:** [English](README.md) | [Tiếng Việt](vi/README.md) | [中文](zh/README.md) | [Українська](uk/README.md) | [日本語](ja/README.md)
@@ -102,7 +102,7 @@ Run `/lesson-quiz [topic]` after each module. The quiz pinpoints what you missed
- **GitHub stars** from developers who use Claude Code daily
- **Forks** from teams adapting this guide for their own workflows
- **Actively maintained** — synced with every Claude Code release (latest: v2.1.119, April 2026)
- **Actively maintained** — synced with every Claude Code release (latest: v2.1.126, May 2026)
- **Community-driven** — contributions from developers who share their real-world configurations
[![Star History Chart](https://api.star-history.com/svg?repos=luongnv89/claude-howto&type=Date)](https://star-history.com/#luongnv89/claude-howto&Date)
@@ -201,7 +201,7 @@ cp -r 03-skills/code-review ~/.claude/skills/
Yes. MIT licensed, free forever. Use it in personal projects, at work, in your team — no restrictions beyond including the license notice.
**Is this maintained?**
Actively. The guide is synced with every Claude Code release. Current version: v2.1.119 (April 2026), compatible with Claude Code 2.1+.
Actively. The guide is synced with every Claude Code release. Current version: v2.1.126 (May 2026), compatible with Claude Code 2.1+.
**How is this different from the official docs?**
The official docs are a feature reference. This guide is a tutorial with diagrams, production-ready templates, and a progressive learning path. They complement each other — start here to learn, reference the docs when you need specifics.
@@ -871,11 +871,11 @@ MIT License - see [LICENSE](LICENSE). Free to use, modify, and distribute. The o
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/changelog
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
- https://github.com/anthropics/claude-code/releases/tag/v2.1.113
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5
STYLE_GUIDE.md
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@@ -631,8 +631,8 @@ Before submitting content, verify:
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/changelog
claude_concepts_guide.md
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@@ -3145,8 +3145,8 @@ Claude Code supports three models with adaptive reasoning effort:
*Now includes: Hooks, Checkpoints, Planning Mode, Extended Thinking, Background Tasks, Permission Modes (6 modes), Headless Mode, Session Management, Auto Memory, Agent Teams, Scheduled Tasks, Chrome Integration, Channels, Voice Dictation, and Bundled Skills*
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/hooks
resources.md
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@@ -249,10 +249,10 @@ These steps capture the core recommendations for smooth workflows with Claude Co
| **Monitor Tool** | Watch a background command's stdout stream and react to events instead of polling (v2.1.98+) | [Advanced Features](09-advanced-features/) |
---
**Last Updated**: April 24, 2026
**Claude Code Version**: 2.1.119
**Last Updated**: May 2, 2026
**Claude Code Version**: 2.1.126
**Sources**:
- https://code.claude.com/docs/en/overview
- https://code.claude.com/docs/en/changelog
- https://github.com/anthropics/claude-code/releases/tag/v2.1.119
- https://github.com/anthropics/claude-code/releases/tag/v2.1.126
**Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.7, Claude Haiku 4.5