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v2026.4.26 — Cerebras + Hermes/Claude Migration + Compaction Preflight

Released: April 26, 2026 Theme: Provider expansion + cross-agent migration + compaction logic upgrade Breaking Changes: None

Core Highlights

1. Cerebras Joins Bundled Providers

New Cerebras bundled plugin:

  • Onboarding
  • Static model catalog
  • Docs
  • Manifest-owned endpoint metadata

2. openclaw migrate Cross-Agent Import

New openclaw migrate command imports from other agent systems into OpenClaw:

  • Claude import: bundled Claude importer previews and applies Claude Code, Claude Desktop instructions, MCP servers, skills, command prompts, safe archive / manual-review state
  • Hermes import: bundled Hermes importer handles config, memory / plugin hints, model providers, MCP servers, skills, supported credentials
  • Includes plan, dry-run, JSON, pre-migration backup, onboarding detection, archive-only report copies

3. Talk Mode Google Live

Control UI / Talk adds:

  • Generic browser realtime transport contract
  • Google Live browser Talk sessions (constrained ephemeral tokens)
  • Gateway relay for backend-only realtime voice plugins

4. Compaction Preflight Trigger

New opt-in agents.defaults.compaction.maxActiveTranscriptBytes:

  • Runs normal local compaction when active JSONL grows too large
  • Requires transcript rotation so successful compaction moves future turns onto a smaller successor file
  • No more crude byte-splitting of history

5. Memory / Embedding Endpoint Hardening

OpenAI-compatible memory adds memorySearch.inputType, queryInputType, documentInputType:

  • For asymmetric embedding endpoints
  • Includes direct query embeddings and provider batch indexing

Ollama memory query prefixes:

  • Model-specific retrieval query prefixes for nomic-embed-text, qwen3-embedding, mxbai-embed-large
  • Document batches unchanged

6. Matrix E2EE One-Shot Setup

New openclaw matrix encryption setup:

  • Single setup flow handles Matrix encryption enable, recovery bootstrap, verification status
  • Previously required multiple steps

7. Control UI Raw Config Editing Improvements

  • Pending-changes raw config diff panel
  • Parses JSON5
  • Sensitive values redacted until reveal
  • Opening the panel doesn’t trigger fake raw-edit callbacks

8. Big Gateway / Plugin Stability Batch

  • Gateway startup: hello-ok includes connecting client and fresh presence version, no follow-up event needed
  • Gateway treats broken-pipe stream errors (like EPIPE) as non-fatal — Discord delivery or closed pipes no longer crash gateway after reply ready
  • CLI/update: npm global updates install into a verified temporary prefix before swapping the package tree (no mixed old/new installs)
  • Plugins startup: reuse canonical realpath — Windows npm-global startups no longer repeat expensive path resolution
  • Plugins install: OPENCLAW_PLUGIN_STAGE_DIR can hold layered runtime-dep roots (read-only preinstalled deps before writable root)
  • Gateway starts in degraded mode when a single plugin entry has invalid schema config (openclaw doctor --fix quarantines that plugin config — no more crash-loop on every channel)
  • Bonjour mDNS advertisements default to system hostname when DNS-safe, avoiding openclaw.local probing conflicts and gateway restart loops

9. Channel Fixes

  • Discord: thread sessions inherit parent channel’s /model override without inheriting parent transcript
  • WhatsApp: QR-login WebSocket connections honor HTTPS_PROXY/HTTP_PROXY (also respecting NO_PROXY)
  • Channels/message tool: Discord, Slack, Mattermost user: / channel: target syntax surfaces in shared message target schema
  • Feishu/Windows: bundled channel sidecar loads no longer fail with raw C: ESM loader errors on Windows

10. Model / Reasoning Fixes

  • Anthropic: trailing assistant prefill removed when extended thinking enabled (Opus 4.7 / Sonnet 4.6 no longer fail user-final-turn validation)
  • Reasoning: Groq and LM Studio can declare provider-native reasoning effort values (no more hardcoded low/medium)
  • Local models: custom providers with only baseUrl default to Chat Completions adapter, loopback auto-trusted
  • Ollama/WSL2: warns when GPU + autostart ollama.service + Restart=always combine (with systemd / .wslconfig / keep-alive mitigations)

11. Reasoning Output Sanitization

  • Orphan closing reasoning tags with following answer text treated as privacy boundary (delivery, history, streaming, Control UI sanitizers all enforce)
  • Closed reasoning blocks keep strict stripping

Upgrade Recommendations

  • Customers migrating from other agent systems (Claude, Hermes): use openclaw migrate
  • Cerebras users: upgrade and use
  • Heavy long-conversation users: compaction preflight prevents runaway
  • Matrix users: E2EE setup vastly simplified
  • Windows deployments: multiple Windows path fixes
  • WhatsApp behind proxy: QR login finally goes through proxy

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