Agent Breaking Changes_

← Pi

Pi v0.85.0

2026-09-04 · official notes

Summary

• New Features
• Persistent Claude thinking effort — Supported Anthropic transports preserve per-turn effort and recover safely from signed-thinking mismatches. See Model Configuration.
• Fullscreen transcript controls — Jump to the latest message from a scrolled transcript and use the embedded working indicator. See TUI Fullscreen Viewport.

Full notes

### New Features

- **Persistent Claude thinking effort** — Supported Anthropic transports preserve per-turn effort and recover safely from signed-thinking mismatches. See [Model Configuration](https://github.com/earendil-works/pi/blob/v0.85.0/packages/coding-agent/docs/models.md#model-configuration).
- **Fullscreen transcript controls** — Jump to the latest message from a scrolled transcript and use the embedded working indicator. See [TUI Fullscreen Viewport](https://github.com/earendil-works/pi/blob/v0.85.0/packages/coding-agent/docs/keybindings.md#tui-fullscreen-viewport).
- **Restorable in-memory sessions** — Resume externally stored session entries through the SDK. See [Session Management](https://github.com/earendil-works/pi/blob/v0.85.0/packages/coding-agent/docs/sdk.md#session-management).

### Added

- Added `SessionManager.inMemory()` support for restoring externally managed session entries ([#8980](https://github.com/earendil-works/pi/pull/8980) by [@y-nk](https://github.com/y-nk)).
- Added inherited OpenAI-compatible `vllmPriority` and `supportsMaxOutputTokens` model settings for vLLM scheduler priority and OpenAI Responses output-token limits ([#9004](https://github.com/earendil-works/pi/pull/9004) by [@AppleDannyClegg](https://github.com/AppleDannyClegg), [#8941](https://github.com/earendil-works/pi/pull/8941) by [@scturtle](https://github.com/scturtle)).
- Added inherited LaTeX rendering for relational algebra join symbols ([#9050](https://github.com/earendil-works/pi/pull/9050) by [@haoqixu](https://github.com/haoqixu)).
- Added a clickable "Jump to latest message" label with the `tui.altScreen.bottom` shortcut to the fullscreen transcript while it is scrolled up ([#9080](https://github.com/earendil-works/pi/pull/9080) by [@rwachtler](https://github.com/rwachtler)).

### Changed

- Moved the streaming working indicator into the default editor border and matched its default spinner and label to the thinking-level border color. Custom editors retain the standalone indicator unless they opt in to embedding it ([#8799](https://github.com/earendil-works/pi/pull/8799) by [@cristinaponcela](https://github.com/cristinaponcela)).
- Reduced inherited fullscreen transcript search latency on large transcripts by caching unchanged search results, indexing ASCII runs, and limiting highlight work to visible matches ([#8800](https://github.com/earendil-works/pi/pull/8800) by [@cristinaponcela](https://github.com/cristinaponcela)).

### Fixed

- Fixed managed `fd` and ripgrep downloads on Linux musl systems ([#9070](https://github.com/earendil-works/pi/pull/9070) by [@Charlie0113-T](https://github.com/Charlie0113-T)).
- Removed the unavailable inherited Grok Build 0.1 model from `/model` ([#9093](https://github.com/earendil-works/pi/pull/9093) by [@Jaaneek](https://github.com/Jaaneek)).
- Fixed inherited provider streams emitting incompatible event sequences and custom tool-call deltas.
- Restored the `@earendil-works/pi-coding-agent/client` compatibility entry point.
- Fixed the inherited Qwen Token Plan Individual catalog to include Qwen3.8 Flash ([#9021](https://github.com/earendil-works/pi/issues/9021)).
- Fixed inherited OpenAI Codex SSE parsing to process terminal events that are not followed by a blank line ([#9047](https://github.com/earendil-works/pi/issues/9047)).
- Fixed inherited GitHub Copilot Claude Fable 5 requests so selected reasoning levels are sent ([#8961](https://github.com/earendil-works/pi/issues/8961)).
- Fixed inherited Baseten GLM-5.2 models incorrectly advertising image input support ([#8293](https://github.com/earendil-works/pi/pull/8293) by [@Panoplos](https://github.com/Panoplos)).
- Fixed skills being unavailable when Bash is the only enabled tool ([#8552](https://github.com/earendil-works/pi/pull/8552) by [@xl0](https://github.com/xl0)).
- Fixed concurrent session shares overwriting one another ([#8613](https://github.com/earendil-works/pi/pull/8613) by [@wutongyuonce](https://github.com/wutongyuonce)).
- Fixed image orientation detection skipping EXIF data after non-EXIF APP1 segments ([#8616](https://github.com/earendil-works/pi/pull/8616) by [@wutongyuonce](https://github.com/wutongyuonce)).
- Fixed imported sessions overwriting an existing session with the same filename ([#8985](https://github.com/earendil-works/pi/pull/8985) by [@wutongyuonce](https://github.com/wutongyuonce)).
- Fixed session forks losing their compaction boundary ([#8990](https://github.com/earendil-works/pi/pull/8990) by [@acmerfight](https://github.com/acmerfight)).
- Fixed in-memory session forks before an active turn settled ([#8937](https://github.com/earendil-works/pi/pull/8937) by [@acmerfight](https://github.com/acmerfight)).
- Fixed inherited Fireworks GLM models using the wrong API adapter.
- Fixed inherited `NO_PROXY` matching for root domains and subdomains ([#8737](https://github.com/earendil-works/pi/pull/8737) by [@MeiSiristhebest](https://github.com/MeiSiristhebest)).
- Fixed `bash`, `edit`, `find`, `grep`, `ls`, `read`, and `write` tools ignoring `ctx.cwd` ([#8627](https://github.com/earendil-works/pi/pull/8627) by [@vmizg](https://github.com/vmizg)).
- Fixed inherited terminal startup under restricted seccomp policies that reject the `SIGWINCH` self-signal ([#8898](https://github.com/earendil-works/pi/pull/8898) by [@bartlomiejkida](https://github.com/bartlomiejkida)).
- Fixed inherited Zed terminal image capability detection ([#8828](https://github.com/earendil-works/pi/pull/8828) by [@Perlence](https://github.com/Perlence)).
- Fixed drag selection continuing over the fullscreen editor.
- Fixed managed `fd` and ripgrep downloads requiring the GitHub Releases API ([#8708](https://github.com/earendil-works/pi/pull/8708) by [@Terminator666666](https://github.com/Terminator666666)).
- Fixed branch summaries failing when reasoning consumes the previous 2048-token output cap ([#8845](https://github.com/earendil-works/pi/issues/8845)).
- Fixed the write tool reporting UTF-16 code-unit counts as byte counts by removing the misleading count ([#8979](https://github.com/earendil-works/pi/issues/8979)).
- Fixed proxied plain-HTTP provider requests hanging after a tool call by tunneling them with CONNECT ([#8134](https://github.com/earendil-works/pi/issues/8134)).
- Fixed RPC `abort` reporting success without cancelling an in-progress manual compaction ([#8920](https://github.com/earendil-works/pi/issues/8920)).