Pi 0.84.3

ChangelogRelease notesAug 24, 2026Pi 0.84.3GitHub releasenpmNew Features

PowerShell tool — Use optional native PowerShell command execution on Windows. See PowerShell Tool. Safer managed updates — Stage, verify, and atomically activate updates for installer-managed installations. See Install and Manage. Model and thinking controls — Select thinking levels with /thinking, search defaults, keep selections session-scoped, and persist them explicitly with Ctrl+S. See Models and Thinking.

Breaking Changes

Renamed the inherited GoogleThinkingLevel type to GoogleApiThinkingLevel and added ResolvedGoogleThinkingLevel for normalized adapter levels.

Added

Added an optional powershell tool for Windows, configurable through defaultTools and the SDK. See PowerShell Tool. Added a /thinking selector and searchable default choices to the model and thinking selectors; Ctrl+S saves the selected model as the global default. See Models and Thinking. Added optional routing session IDs to exported compaction summary helpers so callers can preserve provider routing without enabling prompt cache writes. Added transcript usage notices for compaction and branch summaries when cache miss notices are enabled. Added session_compact_failed extension events so compaction failures and aborts expose their reason, retry state, source, and error message to handlers (#8175). Added inherited provider-neutral toolChoice support to simple stream requests. Added inherited automatic Anthropic server-side refusal fallback for supported first-party models, including returned-model usage pricing (#8017). Added inherited configurable OpenAI-compatible thinking-token budget fields for vLLM, Qwen/SGLang, and llama.cpp servers. See OpenAI Compatibility (#8275 by @bnsd55). Added inherited China-specific ZAI Coding Plan models, including GLM-4.6V vision support and API-equivalent usage cost estimates (#8220). Added inherited deepseek-v4-pro-0813 support to the Qwen Token Plan Individual catalog (#8194).

Changed

Changed experimental installer-managed installations so pi update stages, verifies, and atomically activates the selected release in place. See Install and Manage. Changed inherited built-in xAI models to use the Responses API with encrypted reasoning replay and made Grok 4.6 the default xAI model (#8124 by @Jaaneek). Changed inherited Anthropic, Azure OpenAI, Google, Mistral, and OpenAI adapters to send Pi's default User-Agent unless overridden (#8305). Changed Windows and WSL keybinding defaults to avoid terminal-reserved shortcuts for image paste, model cycling, editor undo, fullscreen transcript navigation and search, and message queueing (#8372). Changed Bun release archives to ship the native clipboard binary only inside the wrapper package, removing a duplicate platform package from each archive. Changed package resource glob expansion to use Node.js's built-in implementation with deterministic visible-path matching, reducing the installed runtime dependency tree. Changed the bundled Node.js runtime to load jiti only when importing an extension and Babel only when uncached source needs transformation, reducing CLI startup time and bundle size. Changed syntax highlighting to initialize only twenty common languages eagerly and defer the remaining grammars until after the initial TUI render, reducing CLI startup time. Changed the Node.js CLI and RPC entrypoints to load a bundled runtime, reducing startup filesystem reads while keeping the public library and legacy module paths on the modular runtime for normal dependency identity. Changed session sharing to render clickable terminal links, display only the canonical Radius artifact URL, and include the current system prompt and active tool definitions in Radius session shares.

Fixed

Fixed failed extension factories leaving event subscriptions, provider registrations, and default flag state active (#8424 by @acmerfight). Fixed models.json typings omitting the documented OpenAI-compatible compat.supportsFinishReason provider and model override (#8487 by @petrroll). Fixed /model and /thinking selections being persisted globally unless explicitly saved with Ctrl+S (#5263). Fixed JSON and RPC toolcall_start events omitting the tool call id and name (#7953 by @christianklotz). Fixed extensions failing to load when the Node.js CLI runs as a single-executable application (#8237). Fixed nested Markdown skills inside .agents/skills/ grouping directories not being discovered. Fixed compaction and branch summarization requests exposing tools to providers. Fixed single-object edit tool inputs failing validation by accepting them as one-edit arrays in both coding-agent and harness edit tools (#7835). Fixed root Markdown files such as README.md and AGENTS.md in skill directories being reported as broken skills unless they declare valid skill frontmatter (#7805). Fixed the default Cerebras model referencing an unavailable Z.AI model. Fixed inherited OpenAI-compatible Chat Completions reasoning replay to preserve and resend assistant-level reasoning_details verbatim and in order (#7994). Fixed inherited Anthropic server-side fallback responses being priced with the requested model instead of the returned fallback model (#8285). Fixed inherited GitHub Copilot login triggering model-policy rate limits by limiting policy updates, retrying model discovery once, and honoring server retry delays (#7850). Fixed inherited Amazon Bedrock dropping and failing to replay opaque redacted reasoning from non-Anthropic models (#8314 by @seiji). Fixed inherited Z.AI Coding Plan models deriving incomplete reasoning-effort metadata, including missing GLM-5.3 low, high, and max levels (#8336). Fixed inherited DeepSeek V4 Flash on OpenCode and OpenCode Go omitting its supported low thinking level (#8181 by @tianshuang). Fixed inherited Azure OpenAI Responses ignoring toolChoice in provider-specific stream requests. Fixed inherited Amazon Bedrock response hooks receiving only a synthesized request id instead of the raw response headers (#8234). Fixed inherited Kimi usage reporting so top-level cached_tokens count as cache reads instead of normal input tokens (#8075). Fixed inherited Google custom models ignoring thinkingLevelMap, which dropped extended thinking controls (#8135). Fixed writes to auth.json and models-store.json overriding administrator-managed file permissions and ACLs (#7779). Fixed UTF-8 BOM markers preventing frontmatter and user configuration files from loading (#8337). Fixed invalid settings files being easy to miss during interactive startup by rendering warnings with the file path inside the TUI (#7829). Fixed the subagent example repeatedly prompting before running project-local agents in trusted repositories (#8261). Added session_compact_failed extension events so compaction failures and aborts expose their reason, retry state, source, and error message to handlers (#8175). Fixed truncated compaction and branch summaries being persisted when generation reaches its output token limit (#7048). Fixed npm package update checks treating older registry versions as available updates, preventing pi update from downgrading already-newer installed packages (#8226). Fixed built-in llama.cpp models disappearing from /model when /llama refreshed a configured server under PI_OFFLINE, and included idle-slept sleeping router models plus autoloadable unloaded presets in the selectable catalog (#8558 by @cristinaponcela). Fixed pi.registerFlag() accepting default values that do not match the declared flag type (#8064). Fixed Z.AI Coding Plan defaults referencing the removed GLM-5.1 model (#8096). Fixed repeated ambiguous truncated-response recovery being mislabeled as context overflow (#8130). Fixed duplicate fullscreen right-click paste in VS Code-based terminals on Windows (#8186). Fixed inherited padded text exceeding narrow terminal widths (#8252). Fixed inherited wrapped Markdown table links leaking color into borders and neighboring cells, including tables inside blockquotes (#8335). Fixed llama.cpp login guidance to direct users to /llama before /model when no local models are loaded (#8203). Fixed hung pi.dev model catalog requests consuming the entire refresh deadline without retrying (#8198). Fixed inherited Xiaomi model catalogs listing shut-down MiMo V2 models in /model and --list-models (#8187). Fixed branch summary entries recording the navigation destination in fromId instead of the pre-navigation source leaf. Fixed threshold auto-compaction being skipped when providers omit streaming usage data (#8328). Fixed dash-prefixed prompts being parsed as options by supporting -- as an end-of-options delimiter (#7269).