# Pi v0.80.3: Claude Sonnet 5 support, UI spacing controls, RPC session tree access

> Pi v0.80.3 adds support for Anthropic Claude Sonnet 5 through Anthropic-compatible and Bedrock providers, configurable horizontal padding for message display, an external editor override for Ctrl+G, and new RPC commands for inspecting session entries and tree snapshots. The default OpenAI model is changed to gpt-5.5. Several fixes address provider error handling, stream stability, and TUI indicator cleanup.

| | |
|---|---|
| **Tool** | Pi |
| **Version** | v0.80.3 |
| **Kind** | release |
| **Published** | 2026-06-30 |
| **Observed** | 2026-08-21 |
| **Significance** | 3/5 |
| **Breaking** | no |
| **Categories** | feature, model-support, api-change, fix |

## What changed


- **Claude Sonnet 5**: Available through inherited Anthropic-compatible and Bedrock provider catalogs with adaptive thinking enabled.
- **outputPad**: Configurable horizontal padding for user messages, assistant messages, and thinking blocks.
- **externalEditor**: Ctrl+G editor override before $VISUAL/$EDITOR fallbacks.
- **RPC**: `get_entries` and `get_tree` commands for session inspection over RPC.
- **Extensions**: `session_info_changed` event for observing session name changes.
- **Azure Foundry**: Updated endpoint URL support for current Microsoft Foundry endpoints.
- **Default model**: Changed to `gpt-5.5`.
- **Provider fixes**: HTTP errors include response bodies; `streamSimple()` max-token caps respect single-context-window providers; OpenAI Responses reasoning replay fixed for out-of-order output items; Z.AI thinking clears correctly for provider caching.
- **TUI fixes**: Startup benchmark timing prints after TUI shutdown; compaction stops immediately; status indicators no longer shrink TUI when clear-on-shrink is enabled.
- **Other fixes**: Extension tool changes apply before next provider request; undici client error crash fixed; resource notifications stay before messages on session resume.


## Sources

- [github_release](https://github.com/earendil-works/pi/releases/tag/v0.80.3) — retrieved 2026-08-21


## Community

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Canonical: https://changelogs.info/pi/v0-80-3
Entity: https://changelogs.info/pi
Event ID: `evt_2026-06-30_pi_v0-80-3`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.