Summary
- createTestHarness() API
- Local Worker test server
- Replaces unstable_startWorker()/unstable_dev()
Links
Resources
Recent
Latest Release Posts
Summary
- MCP 2026-07-28 client/server support
- Stateless createMcpHandler factory per-request servers
- McpAgent deprecated — migrate to SDK v2
Summary
- Supports AI SDK v6 and v7
- Match AI SDK major with @ai-sdk/react major
- Think normalizes streaming and telemetry
Summary
- MCP schema conversions are cached per live connection
- Think adds includeMcpTools opt-out for automatic MCP exposure
- Code Mode runtime exposes search(), describe(), and execute()
Summary
- Run Devin on Cloudflare
- Per-session isolated sandboxes
- Backed by Cloudflare Containers
Summary
- Hourly max storage per namespace
- Only for SQLite-backed namespaces
- Per-object storage not available
Summary
- Default $10 budget alert enabled
- Alerts apply next billing cycle (daily-processed)
- Informational only — editable or removable
Summary
- Preview sent email content in Activity log
- View HTML, text, headers, attachments, raw RFC 5322
- Previews retained ~7 days; enable per sending domain
Summary
- wrangler flagship CLI for app and flag management
- create flags (boolean, string, number, JSON) and update defaults
- rollout, split, and rules for gradual exposure without redeploy
Summary
- six lifecycle email events
- per-domain queue subscriptions
- payload includes SMTP status
Summary
- Legacy KV namespace routes deprecated Jul 15 2026
- Stop working Oct 15 2026 — migrate before then
- Replace /workers/namespaces/ with /storage/kv/namespaces/
Summary
- Create preview accounts via REST API
- Deploy Workers without user Cloudflare account
- Claim URL converts preview to permanent
Summary
- Supports read-only API tokens
- Enables least-privilege for query engines
- Vended credentials inherit storage permissions
Summary
- Automatic manifest optimization during compaction
- Rewrites and clusters manifests by partition to cut metadata I/O
- No config changes — runs for compaction-enabled tables
Summary
- Agents support MCP elicitation (form and url)
- Register handlers with mcp.configureElicitationHandlers in onStart
- Advertised modes persist through Durable Object hibernation
Summary
- plain-text output option
- removes Markdown syntax
- works via env.AI and REST API
Summary
- retries.delay accepts a function
- Function receives ctx and error
- Return string, number, or Promise for duration
Summary
- Wrangler sends npm dependency metadata
- Records declared and exact installed versions
- Opt out via dependencies_instrumentation.enabled=false
Summary
- New Durable Object namespaces must use SQLite
- Creating new KV-backed namespaces will fail on affected accounts
- SQLite adds SQL queries and 30-day point-in-time recovery
Summary
- Wrangler auto-provisions Flagship apps
- app_id written back to config
- Supports wrangler.jsonc and wrangler.toml