# Changelog > Every Firenook release, newest first: what changed, what each one made faster, and what happens to your data when you upgrade. Also as RSS. Every Firenook release, newest first: what changed, what it made faster, and what happens to your data when you upgrade. [Follow by RSS](https://firenook.dev/changelog.xml) [Releases on GitHub](https://github.com/firenook-dev/firenook/releases) ## The first release for public use Firenook 0.2.0, the latest release, published on 23 October 2026. `npm install --save-dev firenook@0.2.0` [Read the 0.2.0 notes](https://firenook.dev/changelog/0.2.0) - ### A stable version `npm install firenook` and a bare `npx firenook` get 0.2.0 on any Node from 20 up; previews keep their own versions, and a preview install is told about 0.2.0. - ### `firenook init` in a terminal One screen with every choice made (the project id, the emulators on their usual ports, TypeScript, JavaScript or no Functions, the coding agents, the set-up), then the installs, Firenook pinned, the first build and the emulators started in the same terminal. - ### TypeScript compiled as you save `--build` runs each codebase's own `build:watch` beside the engine and starts it after the first compile; errors show in the log. - ### Ordered and range queries An order-preserving field index serves `orderBy`, range filters and cursors on a top-level field, and checks equality on other fields before a document is read; a batch get writes stored documents straight into the reply. - ### Node 22, 24 and 26 Older is refused with how to switch; an odd or newer major starts with a warning; a codebase whose `engines.node` asks for another Node is warned about, as the official emulator warns. - ### Older Linux The engines need glibc 2.28 (RHEL 8, Debian 10, Ubuntu 20.04, node:24-slim and later) instead of 2.39; Alpine and older systems are told what they lack. - ### Security Rules as the official emulator applies them A gRPC request without an `Authorization` header is signed out, not the owner. - ### Nothing reaches production The console's snippets (Python Storage, Apple Firestore, Tasks and Eventarc everywhere) and `emulators:exec`, which now sets the official variables for the running emulators only. - ### Functions Params' defaults, `.env.`, the `.env` values at discovery, the project `firebase use` chose, warnings for triggers on services that do not run, `functions:invoke --help`, `ext:vendor --offline`, the Firebase login on Windows. - ### REST `createDocument` works, and every v1 method answers as the official emulator does (the differences kept are listed in `COMPATIBILITY.md`). - ### Starts and stops Two suites with one project id; Firestore closed after browser sessions; a killed launcher stops its engine, which saves the data; `--import` without metadata and a bad indexes file warn; `firebase.json` found from a folder inside the project; `localhost` and `::1` bound as officially. - ### Polish `init --force` keeps your rules, `init --adopt` keeps your formatting, `--ui` comes before `ui.enabled: false`, counts agree with their nouns, every service's lines reach the screen, `CI=false` is not CI. Your data: Data 0.2.0 saves opens in 0.2.0-next.8, which rebuilds its own field index first; no emulator protocol or port changed, except that `localhost` now binds `::1` as well for the hub and the console, as officially. ## Faster, release by release What a release made faster, measured on the same data before and after it shipped. Lower is better on every measure. ### orderBy a timestamp, limit 20, on 2.7 million documents 1,192× faster - [0.2.0-next.8](https://firenook.dev/changelog/0.2.0-next.8) 5,128 ms - [0.2.0](https://firenook.dev/changelog/0.2.0) 4.3 ms ### The console’s Firestore tree, first map of 2.7 million documents 3× faster - [0.2.0-next.7](https://firenook.dev/changelog/0.2.0-next.7) 133 s - [0.2.0-next.8](https://firenook.dev/changelog/0.2.0-next.8) 37 s ### Ready, with seven functions and every emulator 8× sooner - [0.2.0-next.6](https://firenook.dev/changelog/0.2.0-next.6) 6.82 s - [0.2.0-next.7](https://firenook.dev/changelog/0.2.0-next.7) 0.78 s ### Opening saved data, 2.7 million documents 2,179× sooner - [0.2.0-next.5](https://firenook.dev/changelog/0.2.0-next.5) 146 s - [0.2.0-next.6](https://firenook.dev/changelog/0.2.0-next.6) 67 ms ### Checking a 7.8 GB seed before a resumed start 23× sooner, at least - [0.2.0-next.4](https://firenook.dev/changelog/0.2.0-next.4) 23–26 s - [0.2.0-next.5](https://firenook.dev/changelog/0.2.0-next.5) under 1 s ### A write, on a Mac 22× faster - [0.1.0-next.5](https://firenook.dev/changelog/0.1.0-next.5) 13.1 ms - [0.1.0-next.6](https://firenook.dev/changelog/0.1.0-next.6) 0.59 ms Every multiple is rounded down. Each figure is from the release’s notes, and for 0.2.0 from [its benchmark record](https://github.com/firenook-dev/firenook/blob/main/benchmarks/020-paired-acceptance.json). Against the official emulator: [the benchmarks](https://firenook.dev/benchmarks). ## Every release 19 releases since the first preview on 7 September 2026. The previews came first; 0.2.0 is the first release for public use. ### Firenook 0.2 1. 23 Oct 2026 [0.2.0](https://firenook.dev/changelog/0.2.0) Stable Latest #### [The first release for public use](https://firenook.dev/changelog/0.2.0) - A stable version - `firenook init` in a terminal - TypeScript compiled as you save - Ordered and range queries [And 8 more in the notes](https://firenook.dev/changelog/0.2.0) 2. 21 Oct 2026 [0.2.0-next.8](https://firenook.dev/changelog/0.2.0-next.8) #### [The Firestore tree at once, code in colour, npx on any Node](https://firenook.dev/changelog/0.2.0-next.8) - `npx firenook` gets this release on any Node from 20 up - The Firestore tree at once - Code in colour - The console behind local proxies 3. 20 Oct 2026 [0.2.0-next.7](https://firenook.dev/changelog/0.2.0-next.7) #### [Data kept without a seed, coding agents set up in one command, 54 MCP tools](https://firenook.dev/changelog/0.2.0-next.7) - A project with no seed keeps its data - `--keep-data` - `firenook mcp add` - 54 MCP tools, up from 19 [And 7 more in the notes](https://firenook.dev/changelog/0.2.0-next.7) 4. 18 Oct 2026 [0.2.0-next.6](https://firenook.dev/changelog/0.2.0-next.6) #### [Data closed on stop, starts in milliseconds, the store's size](https://firenook.dev/changelog/0.2.0-next.6) - A stop closes the data - A killed engine is no stop - Saved data opens in milliseconds - `firenook state:inspect --state-dir DIR` [And 4 more in the notes](https://firenook.dev/changelog/0.2.0-next.6) 5. 17 Oct 2026 [0.2.0-next.5](https://firenook.dev/changelog/0.2.0-next.5) #### [Saved data: a quick seed check, quick repairs, clean stops](https://firenook.dev/changelog/0.2.0-next.5) - The seed check reads file details - Files operating systems write never block a start - A first import hashes the seed beside the import - A changed seed names its files [And 5 more in the notes](https://firenook.dev/changelog/0.2.0-next.5) 6. 17 Oct 2026 [0.2.0-next.4](https://firenook.dev/changelog/0.2.0-next.4) #### [The terminal UI](https://firenook.dev/changelog/0.2.0-next.4) - The terminal UI - A start that cannot run - The plain output is unchanged - The release check [And 2 more in the notes](https://firenook.dev/changelog/0.2.0-next.4) 7. 17 Oct 2026 [0.2.0-next.3](https://firenook.dev/changelog/0.2.0-next.3) #### [Firenook's own console, and Google's Emulator UI gone](https://firenook.dev/changelog/0.2.0-next.3) - The console - Google's Emulator UI is gone - CLI - Functions 8. 3 Oct 2026 [0.2.0-next.2](https://firenook.dev/changelog/0.2.0-next.2) #### [The read path, incremental listeners and a field index](https://firenook.dev/changelog/0.2.0-next.2) 9. 19 Sept 2026 [0.2.0-next.1](https://firenook.dev/changelog/0.2.0-next.1) #### [Firenook: the project renamed, one license](https://firenook.dev/changelog/0.2.0-next.1) ### 0.1, published as Fireside 1. 19 Sept 2026 [0.1.0-next.9](https://firenook.dev/changelog/0.1.0-next.9) #### [Cloud Tasks emulator, every configuration shape, the CLI surface](https://firenook.dev/changelog/0.1.0-next.9) 2. 18 Sept 2026 [0.1.0-next.8](https://firenook.dev/changelog/0.1.0-next.8) #### [Complete Authentication and a full Pub/Sub emulator](https://firenook.dev/changelog/0.1.0-next.8) 3. 18 Sept 2026 [0.1.0-next.7](https://firenook.dev/changelog/0.1.0-next.7) #### [Native Storage rules and the owned Functions/Extensions runtime](https://firenook.dev/changelog/0.1.0-next.7) 4. 16 Sept 2026 [0.1.0-next.6](https://firenook.dev/changelog/0.1.0-next.6) #### [Write-behind durability, scan and import performance](https://firenook.dev/changelog/0.1.0-next.6) 5. 12 Sept 2026 [0.1.0-next.5](https://firenook.dev/changelog/0.1.0-next.5) #### [Functions admission parity for upstream-ignored handlers](https://firenook.dev/changelog/0.1.0-next.5) 6. 11 Sept 2026 [0.1.0-next.4](https://firenook.dev/changelog/0.1.0-next.4) #### [Phase A–F qualified engine](https://firenook.dev/changelog/0.1.0-next.4) 7. 9 Sept 2026 [0.1.0-next.3](https://firenook.dev/changelog/0.1.0-next.3) #### [Independent source identity](https://firenook.dev/changelog/0.1.0-next.3) 8. 9 Sept 2026 [0.1.0-next.2](https://firenook.dev/changelog/0.1.0-next.2) #### [Public distribution cleanup](https://firenook.dev/changelog/0.1.0-next.2) 9. 8 Sept 2026 [0.1.0-next.1](https://firenook.dev/changelog/0.1.0-next.1) #### [Browser Auth repair](https://firenook.dev/changelog/0.1.0-next.1) 10. 7 Sept 2026 [0.1.0-next.0](https://firenook.dev/changelog/0.1.0-next.0) #### [First installable preview](https://firenook.dev/changelog/0.1.0-next.0) The 0.1 releases were published as `@fireside-dev/cli`, before Firenook’s rename. [About the former name](https://firenook.dev/docs/help/former-name). ## Upgrade on purpose Read what changed, and move when you’re ready. Every release says what it does to the data an earlier one kept. `npm install --save-dev firenook@0.2.0` [Moving between versions](https://firenook.dev/docs/help/versions)