> For the complete documentation index, see [llms.txt](https://v2.isomer.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v2.isomer.gov.sg/frequently-asked-questions-faq/migration-v1-to-v2.md).

# Migration v1 to v2

## Should I migrate to v2?

Yes, all isomer sites are slated to be migrated to v2  by the end of 2021. If you have concerns over this timeline, let us know in advance. 

## Why should I migrate?   

We're launching IsomerCMS sometime in the mid of 2021, and only sites on v2 are able to use the CMS.

## What should I expect?

Key things to note:

1. **Schedule a migration day with the Isomer team.** It typically takes 1-2 days (depending on the number of sites).  
2. **During migration day.** Please do not make any changes to your site as the Isomer team will be making a snapshot of your site content to be migrated onto version 2. 

**IF** you happen to make changes during migration day, your new changes will be lost after the migration.

## Will my site be down?

 No, your site will remain up during the migration period.

## Do I have to back up my old sites?

No, Github keeps all records of changes made on the site so there is no need to back up your site. If you still like to keep a copy of your site, you can read our [FAQ on backing up.](/frequently-asked-questions-faq/general-faqs.md#how-do-i-back-up-my-site-for-archiving-purposes)

## What are the differences between v1 and v2?

There are a few key differences between v1 and v2: 

1. Homepage : you'll find your homepage on **index.md** on v2
2. Contact us: you'll find your contact us page in pages folder, with the file name **contact-us.md**
3. Resources: for some of you, your resources naming convention may also been updated, you can refer to [here](/configurations/resources/cms-compatible-sites.md) for more information. 


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://v2.isomer.gov.sg/frequently-asked-questions-faq/migration-v1-to-v2.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.