docs: mention upgrade command

[nhedger]

Summary

This PR adds instructions about upgrading Biome for users that install Biome manually.

Merge after biomejs/biome#9546

[netlify]

✅ Deploy Preview for biomejs ready!

Name	Link
🔨 Latest commit	91d4050
🔍 Latest deploy log	https://app.netlify.com/projects/biomejs/deploys/69be8db189092500089273fe
😎 Deploy Preview	https://deploy-preview-4083--biomejs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[github-actions]

Lunaria Status Overview

🌕 This pull request will trigger status changes.

Learn more

By default, every PR changing files present in the Lunaria configuration's files property will be considered and trigger status changes accordingly.

You can change this by adding one of the keywords present in the ignoreKeywords property in your Lunaria configuration file in the PR's title (ignoring all files) or by including a tracker directive in the merged commit's description.

Tracked Files

Locale	File	Note
en	src/content/docs/guides/manual-installation.mdx	Source changed, localizations will be marked as outdated.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[ematipico]

Here we follow the same flow of the core repository.

We send the PRs to the next branch, so we merge code a docs together

[coderabbitai]

Walkthrough

A documentation callout tip has been added to the manual installation guide. The tip explains how users can upgrade Biome to the latest version using the biome upgrade command. It is positioned in the installation workflow, after the instructions for using the standalone binary and before the "Next Steps" section.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarises the main change—adding documentation about the upgrade command for manual Biome installations.
Description check	✅ Passed	The description is directly related to the changeset, explaining that it adds upgrade instructions for users installing Biome manually.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/upgrade-command

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/content/docs/guides/manual-installation.mdx`:
- Around line 87-89: The tip block currently shows the bare command "biome
upgrade" which is inconsistent with the manual-install flow that uses the local
binary invocation "./biome"; update the tip text inside the :::tip block so the
command reads "./biome upgrade" (and scan the manual-installation guide for any
other occurrences of the string "biome upgrade" and replace them with "./biome
upgrade" to keep invocation style consistent).

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 96041bb2-07a7-4720-a3a5-8597647539d5

📥 Commits

Reviewing files that changed from the base of the PR and between 0ca8dcb and 91d4050.

📒 Files selected for processing (1)

• src/content/docs/guides/manual-installation.mdx

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Verify command-style consistency in manual installation docs.
rg -n -C2 'Now you can use Biome by simply running `\./biome`|`biome upgrade`|`\./biome upgrade`' src/content/docs/guides/manual-installation.mdx

Repository: biomejs/website

Length of output: 217

---

🏁 Script executed:

# Check the surrounding context (lines 75-95) to see if PATH is mentioned
sed -n '75,95p' src/content/docs/guides/manual-installation.mdx | cat -n

Repository: biomejs/website

Length of output: 736

---

🏁 Script executed:

# Search for PATH references in the entire file
rg -i 'path|environment|add.*to' src/content/docs/guides/manual-installation.mdx -n

Repository: biomejs/website

Length of output: 41

---

🏁 Script executed:

# Check how `biome upgrade` is documented elsewhere
rg -l 'biome upgrade' src/content/docs/ | head -10

Repository: biomejs/website

Length of output: 106

---

Use consistent invocation style for manual installations

Line 88 uses biome upgrade, but line 85 instructs users to run ./biome. For consistency with the manual-install flow (where the binary is in the current directory), change this to ./biome upgrade.

Suggested change

 :::tip
-To **upgrade** Biome to the latest version, run `biome upgrade`
+To **upgrade** Biome to the latest version, run `./biome upgrade`
 :::

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	:::tip
	To **upgrade** Biome to the latest version, run `biome upgrade`
	:::
	:::tip
	To **upgrade** Biome to the latest version, run `./biome upgrade`
	:::

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@src/content/docs/guides/manual-installation.mdx` around lines 87 - 89, The
tip block currently shows the bare command "biome upgrade" which is inconsistent
with the manual-install flow that uses the local binary invocation "./biome";
update the tip text inside the :::tip block so the command reads "./biome
upgrade" (and scan the manual-installation guide for any other occurrences of
the string "biome upgrade" and replace them with "./biome upgrade" to keep
invocation style consistent).