Antigravity 2.0: What Changed Since 2025

Map the 2025 IDE in older tutorials onto today's App, CLI, IDE extensions and SDK, and know which habits carried over unchanged.

Antigravity has had two launches in a year, and most tutorials online describe the first one. If you follow a 2025 guide in today's product, half the menu names won't match. This lesson is the translation table, plus the reasons behind the changes, so you can tell a renamed feature from a removed one.

Two launches, six months apart

November 18, 2025. Google launched Antigravity as a free public preview alongside Gemini 3. It was an IDE with two surfaces: an Editor view and an Agent Manager for spawning and observing multiple agents across workspaces. Agents could use Gemini 3, OpenAI's GPT-OSS, or Anthropic's Claude Sonnet, then at version 4.5, and rate limits reset every five hours.

May 19, 2026. At Google I/O, Google announced Antigravity 2.0: "a new, standalone desktop application" where, in Google's words, "there is no IDE." The Agent Manager's ideas became the whole app. The same day brought the Antigravity CLI, the Antigravity SDK and new plans, including a $100-a-month Google AI Ultra tier.

Quick checkExercise 1 of 4

A 2025 tutorial says: "Open the Agent Manager and pick a workspace." Where does that happen in today's product?

Since I/O the App has shipped updates every week or two. The ones that change how you work:

Date (2026)	What shipped
Jun 18	Free and Google AI Pro/Ultra personal accounts move from Gemini CLI to the Antigravity CLI
Aug 20	IDE extensions, bringing Antigravity into other editors; Antigravity in Gemini Enterprise
Sep 1	Gemini 3.8 Flash in Antigravity
Sep 15	A new permissions system (App v2.14.0)
Oct 7	Scheduled Tasks renamed Automations (App v2.21.1)
Oct 13	Gemini 4 Argon in Antigravity
Oct 29	Plugin Marketplace
Nov 10	Gemini 4 Carbon and `/swarm` (preview)

What moved where

Most of the change is renaming and regrouping. This is the map to use whenever an older guide doesn't match the screen.

In 2025 tutorials	As of November 2026	What it means for you
Agent Manager	The Antigravity App	Managing agents is the whole app, not a second window
Editor view	The Antigravity IDE and IDE extensions	Agent help inside the editor you already use
Workspace (one repo)	Project: one or more folders with their own settings and permissions	A task can span repos, and permissions follow the project
Knowledge base	Rules (`AGENTS.md`, `.agents/rules/`) and skills, drafted by `/learn`	Memory you can read, review and commit like code
Workflows	Skills (`.agents/skills/<name>/SKILL.md`); workflows are deprecated	Skills load only a name and description until needed, and follow an open standard
Inbox	Sidebar conversations, notifications, and question and permission prompts docked in each conversation	Requests show up where the work is
Terminal and review policies	Permission presets (Request Review, Default, Auto, Turbo) and the Plan Review Policy	One setting covers the sandbox, commands, files, MCP and web
Gemini CLI (personal accounts)	Antigravity CLI, `agy`	The terminal runs the same harness as the App

Sort itExercise 2 of 4

Using the map, sort each idea: did 2.0 rename or regroup it, or is it the same as in 2025?

Card 1 of 6

What a unit of work is scoped to

What didn't change

The core loop is the one from 2025. You brief, the agent plans, you review the plan, it builds and verifies, and you review the evidence before anything merges. Artifacts are still the evidence, the browser is still how agents check UI work, and the merge is still yours. Modules 2 to 5 all rest on that loop, whichever surface you use.

One harness, four doors

The App, the CLI, the IDE extensions and the SDK run the same Antigravity agent harness, and Google says the App and CLI "share the same settings." Rule files such as AGENTS.md and skills in .agents/skills/ live in your project, so agents started from the App or the CLI read the same instructions. CLI conversations can be opened in the App through the @conversation menu.

Quick checkExercise 3 of 4

You add a rule to the repo's AGENTS.md while working in the App. Later you open the same repo with the Antigravity CLI. What happens?

One related change outside Antigravity: Google's cloud coding agent Jules stopped accepting new work on November 11, 2026 and winds down on December 31, 2026. A lesson in Module 5 covers what that means, and when Gemini CLI is still the right tool.

You make the callExercise 4 of 4

Following a 2025 tutorial in 2026

You found a popular 2025 Antigravity tutorial and you're following it step by step in today's App.

Step 1 of the tutorial: "Set terminal execution to Turbo so the agent never waits on you."

Check your understanding

Q1. What happened to the Agent Manager in Antigravity 2.0?

Q2. A teammate asks where Antigravity keeps what agents have learned about your repo. What do you tell them in 2026?

· Work through the 4 remaining exercises above (stuck? each one can show you the answer).

· Score 100% on the quiz.

Vocabulary in this lesson

AgentA model wired to tools and a loop: it reads, acts, checks the result, and goes again until the task is done or you stop it.SkillA named, reusable procedure the agent loads on demand: a folder of instructions and optional scripts, used when a task matches.AGENTS.mdThe instructions file at the repo root that every session reads first: commands, conventions, gotchas. CLAUDE.md in Claude Code.HarnessThe software around the model that gives it hands: a system prompt, tools, permissions, hooks and the loop that feeds results back.SandboxAn isolated place for the agent to run, such as a container, VM or restricted shell, so a bad action can't reach the rest of your machine.Usage limitThe cap on how much agent work your plan or API key allows in a window. Hitting it pauses you; it isn't the context window.

Plain-English definitions from the AI Coding Dictionary.