---
type: "post"
id: "t3-code-v0-1-5-stable-ships-with-10d17b"
slug: "t3-code-v0-1-5-stable-ships-with-10d17b"
title: "T3 Code v0.1.5 stable ships with one-step Stable/Nightly switching and a desktop Brotli decompression security fix"
description: "T3 Code v0.1.5 is a stable release that adds project conversion for existing threads, provider and thinking controls in Antigravity, configurable thread details, and fleet-wide Stable/Nightly switching."
retrieval_nugget: "T3 Code v0.1.5 is a stable release that adds project conversion for existing threads, provider and thinking controls in Antigravity, configurable thread details, and fleet-wide Stable/Nightly switching. It also patches a desktop Brotli decompression vulnerability, making this both a workflow update and a reason for desktop users to upgrade."
published_at: "2026-10-29"
updated_at: "2026-10-29"
record_date: "2026-10-29"
date_kind: "published_at"
topics: ["claude","github"]
entities: ["T3 Code","Antigravity","Electron","Brotli","Claude","GPT","GitHub"]
related_patterns: []
novelty_label: "new_fact"
what_changed: "T3 Code’s stable v0.1.5 adds one-step Stable/Nightly switching and a desktop Brotli decompression security fix."
prior_refs: ["memory:d7e8ab76-88dd-8b1c-a73b-41167476cab2"]
source_url: "https://github.com/pingdotgg/t3code/releases/tag/v0.1.5"
source_urls: ["https://github.com/pingdotgg/t3code/releases/tag/v0.1.5"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:t3-code-v0-1-5-stable-ships-with-10d17b"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
routes: {"html":"https://newruntime.com/posts/t3-code-v0-1-5-stable-ships-with-10d17b/","markdown":"https://newruntime.com/posts/t3-code-v0-1-5-stable-ships-with-10d17b.md","json":"https://newruntime.com/posts/t3-code-v0-1-5-stable-ships-with-10d17b.json"}
---

# T3 Code v0.1.5 stable ships with one-step Stable/Nightly switching and a desktop Brotli decompression security fix

## Retrieval answer

T3 Code v0.1.5 is a stable release that adds project conversion for existing threads, provider and thinking controls in Antigravity, configurable thread details, and fleet-wide Stable/Nightly switching. It also patches a desktop Brotli decompression vulnerability, making this both a workflow update and a reason for desktop users to upgrade.

## Summary

T3 Code v0.1.5 is a stable release that adds project conversion for existing threads, provider and thinking controls in Antigravity, configurable thread details, and fleet-wide Stable/Nightly switching. It also patches a desktop Brotli decompression vulnerability, making this both a workflow update and a reason for desktop users to upgrade.

## What happened

T3 Code v0.1.5 was released on 29 October 2026. The GitHub release lists 25 changes from five contributors and labels the version as the latest stable release. Its changes combine new controls for running and organizing agent work with fixes to provider handling, the desktop application, the command-line installation path, and the web interface.

One workflow change lets a user turn a thread that has no project into a project. The release also extends Antigravity with Claude and GPT models, thinking controls, and diff edits. These are presented as product capabilities rather than performance claims: the notes do not specify which Claude or GPT variants are available, how thinking levels map to underlying provider settings, or whether access depends on an account tier. T3 Code also adds a choice over which fields appear in a thread-details card, including usage limits.

For teams or individuals with more than one installation, the release adds a one-step control to switch all installations between Stable and Nightly. The notes say the Labs toggle keeps five-hour, weekly, and context limits visible. On the provider side, new threads now avoid providers that have just reached a usage limit; tool groups remain collapsed after a usage-limit pause. The release also fixes a queueing issue in which Copilot follow-ups could kill background agents.

Several fixes affect the interface and installation experience. Claude edits now open as diffs instead of raw JSON. Undo notices move to the sidebar footer so they do not cover a thread. T3 Code should start on fresh Ubuntu servers without `libatomic`, and the “update everything” flow for service hosts no longer waits unnecessarily for npm. The Antigravity changes also address unrelated errors during file reads, spinning reads, duplicate model-name labels, and an incorrect effort indicator.

The security-relevant change is a desktop fix for Brotli decompression. The project says it bumped Electron to 44.10.0 for the Node.js Brotli fix identified as CVE-2026-111497. Separately, guest links no longer return file diffs. The release notes do not describe exploit conditions, affected desktop versions, or whether the guest-link issue and the Brotli issue were independently disclosed vulnerabilities. They do establish that the project considers both fixed in v0.1.5.

## What the archive adds

This is a new T3 Code release, but it adds another product-level patch to the Brotli CVE-2026-111497 remediation thread. Earlier coverage documented that [Bun 1.4.4 patched its bundled Brotli decoder](https://newruntime.com/posts/bun-1-4-4-patches-bundled-brotli-decoder-d5a54b/) and that [Git for Windows 2.56.0(4) shipped a Brotli fix](https://newruntime.com/posts/git-for-windows-2-56-0-4-ships-b48890/). T3 Code’s specific action is an Electron upgrade in its desktop app.

## Trend signal

No listed pattern is directly established by this release alone. The release contains useful operational controls, but it does not provide enough evidence to support a broader claim about how agent systems, protocols, or software boundaries are changing.

## Why now

The timing is driven by a stable release that bundles recent nightly work with corrective fixes. The Brotli change is especially time-sensitive because the project explicitly ties its Electron update to CVE-2026-111497, while the surrounding fixes address provider limits and background-agent behavior that can interrupt active work.

## Connections to other events

The release meets the wider Brotli remediation sequence already visible in Bun and Git for Windows. Those releases show the same decoder issue surfacing through different bundled dependencies and distribution paths; T3 Code’s note identifies Electron, rather than Bun or Git, as its relevant update path.

## Why it matters

For a team using T3 Code as part of an agent-assisted development workflow, this is not just a cosmetic patch. Provider-limit handling can reduce avoidable failed starts when a selected provider has just exhausted its allowance, while visible limits and configurable thread details make capacity constraints easier to inspect in context. Stable/Nightly switching can also simplify how a team chooses between predictable releases and faster-moving builds across multiple installations.

The security item deserves a separate operational check. Desktop users should update rather than assume that a server-side package patch covers their local application, because T3 Code identifies its desktop dependency path as Electron. Teams sharing work through guest links should also verify their deployment is on the fixed version, since the release says those links previously exposed file diffs. None of this proves a particular environment was exploitable, but it is enough to make version verification worthwhile.

## Limits and uncertainty

The release notes are the only supplied primary evidence. They do not explain T3 Code’s pricing, licensing, supported operating systems beyond the Ubuntu installation fix, or the full scope of its desktop distribution. They do not provide a severity assessment, exploit prerequisites, proof of exploitation, or a version range affected by the Brotli issue. The notes also do not quantify whether provider-limit avoidance improves completion rates, nor do they specify the exact model catalog, thinking-control semantics, or access requirements for Antigravity. This Field Note therefore describes shipped claims, not independent testing.

## Skill to build now

Create a short upgrade checklist for every desktop and agent-workflow tool your team uses. Record the installed version, release channel, bundled runtime or browser shell where visible, and whether the tool processes content from untrusted sources. For T3 Code specifically, test a new thread immediately after a provider reaches its usage limit, verify that the intended fallback behavior occurs, and confirm that guest-link permissions match your expectations after updating. Treat release-channel choice as an explicit operating decision, not a default left on each individual machine.

## Reader takeaway

T3 Code v0.1.5 gives users more control over projects, models, limits, and release channels, while also updating its desktop Electron dependency for a Brotli security fix. The practical move is to upgrade, then test the provider-limit and sharing paths your team actually relies on.

## Open question

Will T3 Code publish clearer affected-version and exploit-condition guidance for its desktop Brotli fix, and will it document how Stable/Nightly switching behaves across mixed installations?

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

## Continue in the graph

Next records for an agent, linked to their Markdown twins. Replace `.md` with `.json` for structured fields, including `next_reads`.

- topic hub: [Claude](https://newruntime.com/topics/claude.md): Explore the claude topic hub.
- topic hub: [Github](https://newruntime.com/topics/github.md): Explore the github topic hub.
- collection: [Field Notes](https://newruntime.com/posts.json): Open the latest editorial analysis.
- collection: [Source Ledger](https://newruntime.com/source-ledger.json): Inspect the public source evidence graph.
- whole graph: [discovery graph](https://newruntime.com/discovery-graph.json) (typed nodes and edges) and [site index](https://newruntime.com/site-index.md)