🚀 Browser4 4.15.3

🚀 Browser4 v4.15.3 Release Notes

Release Date: 2026-10-30 15:41:22 UTC
Built by: @galaxyeye

☕ Java requirement — depends on how you install

Install mode	Java needed?
Self-contained bundle — browser4-cli install	None — the bundle ships its own jlink-built JRE
browser4-cli binaries / npm install -g browser4-cli	None — native binary
Standalone Browser4.jar (java -jar)	Java 25+
WebMiner (browser4-cli webminer)	JDK 17+ — auto-detected (the bundle's JRE also satisfies it)
Build from source	JDK 25+ to compile; JDK 25 enables the JVM AOT cache (JEP 483/515)

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docs(skill): add a crawl/swarm/X-SQL/PowerCSS escalation guide and tighten the resident warnings

quickstart.md is the compressed resident reference, so it had no room to answer "when do I outgrow htmlsnapshot?" — add a four-row table (X-SQL, PowerCSS, crawl, swarm) with the reach-for-it trigger and an order-of-preference rule that points at the full docs.

Also fold repeated warnings into one place (eval --ref / --output / stdout, the wait --download baseline, -i dropping draggable refs), so SKILL.md and quickstart.md stop saying the same thing twice and cannot drift apart.

📦 Release Highlights

📊 Release Statistics

Metric	Value
📁 JAR Size	106MB
📝 Commits	10
👥 Contributors	1
🏗️ Build Date	2026-10-30 15:41:22 UTC

🔄 Changes Since Last Release

• docs(skill): add a crawl/swarm/X-SQL/PowerCSS escalation guide and tighten the resident warnings (3283822f03)
• chore: ignore /.b4scratch/ (05a1fa976f)
• feat(agent): gate skills, b4.run and MCP skill management by the access preset (1d2535ab0b)
• fix(cli): treat a null from a mis-wrapped eval script as a failure (b4e33b34a1)
• fix(agent): stop read commands blanking the tab, and recover cut rounds (d989de29f6)
• feat(crawl): read a batch in a chosen session profile, request the page's own URL (6c8c8f07e8)
• chore: drop committed bulk-run output and ignore ./output (703197a090)
• Merge remote-tracking branch 'origin/main' into 4.15.x (f0f9162ae3)
• Auto-bump version to 4.15.3-SNAPSHOT (44c2bba9c1)
• docs(examples): add Amazon microwave best-seller crawl walkthrough (d80c3a0172)

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🚀 Quick Start

Self-contained install

Use the CLI to download the matching Browser4 runtime bundle for your platform
(ships its own jlink-built JRE — no Java installation required):

browser4-cli install
browser4-cli open

CLI & SKILLS

# Open a new browser window
browser4-cli open

# Navigate to a page
browser4-cli goto https://browser4.io

# Inspect the page — note the eN labels on interactive nodes
browser4-cli snapshot

# Interact using refs from the snapshot
browser4-cli click e15
browser4-cli type e15 "Hello World"
browser4-cli press e15 Enter
browser4-cli keydown Shift
browser4-cli mousemove 150 300
browser4-cli mousewheel 0 100
browser4-cli keyup Shift

# Take a screenshot and save it to disk
browser4-cli screenshot

# Use a custom server URL
browser4-cli open --server http://localhost:9090

# Execute multiple commands in one process
browser4-cli batch "open https://browser4.io" "snapshot"

# Stop on the first batch failure
browser4-cli batch --bail "open https://browser4.io" "click e1" "screenshot"

# Advanced: pipe batch commands as JSON via stdin
echo '[
  ["goto", "https://example.com/form-filling"],
  ["click", "#reset-btn"],
  ["fill", "#first-name", "Bob"],
  ["fill", "#last-name", "Smith"],
  ["fill", "#email", "bob@example.com"],
  ["select", "#country", "uk"],
  ["check", "#agree-terms"],
  ["click", "#submit-btn"]
]' | browser4-cli batch --json

# Close the session when done
browser4-cli close

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📄 Full Changelog

v4.15.2...v4.15.3

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Built with ❤️ by the Browser4 team

browser4-cli

This release also includes prebuilt browser4-cli binaries for:

• Linux x64
• Linux ARM64
• Linux musl x64
• Linux musl ARM64
• Windows x64
• macOS x64
• macOS ARM64

npm package:
npm install -g browser4-cli

CLI package version in this release workflow:

• 4.15.3

Self-contained Browser4 runtime bundles

This release also includes self-contained Browser4 runtime bundles with:

• a lib/ directory containing Browser4Bundle.jar and all runtime dependencies
• a minimal jlink-built JRE under runtime/
• platform-specific launcher scripts in bin/

Runtime model:
runtime/bin/java -cp "lib/*" <MainClass>

Supported release assets:

• browser4-bundle-runtime-windows-x64.zip
• browser4-bundle-runtime-linux-x64.tar.gz
• browser4-bundle-runtime-darwin-arm64.tar.gz

Recommended install flow:

browser4-cli install

Full Changelog: v4.15.2...v4.15.3