Enhance Scale to Zero documentation

docs/core-concepts/scale-to-zero.mdx

@@ -5,49 +5,79 @@ description: Minimize costs by hibernating inactive database branches
 
 ## Overview
 
-Xata's Scale to Zero feature allows you to minimize costs by hibernating database branches during periods of inactivity. This is particularly useful for development, testing, and staging environments that don't need to be active 24/7.
+Xata's Scale to Zero feature allows you to minimize costs by hibernating database branches during periods of inactivity. This is particularly useful for development, testing and staging environments that don't need to be active 24/7.
 
 When a branch is hibernated:
 - Compute is paused and no active database connections are allowed
 - Your data remains safe and accessible
 - You only pay for storage, not compute costs
 - Branches can be reactivated immediately
 
+Xata offers two different ways of implementing scale to zero for your branches.
+- Manual hibernation
+- Automatic scale to zero 
+
+At the moment, you can enable either manual hibernation or scale to zero, but not both simultaneously.
+
 ## Manual Hibernation
 
 Currently, you can manually hibernate branches through the Xata Console:
 
 ### How to Hibernate a Branch
 
-1. Go to Branch Settings in the Xata Console
+1. Go to the Compute section under Branch Settings in the Xata Console
 2. Toggle "Hibernate branch" to enabled
-3. Click "Update branch settings"
+3. Click "Save compute settings"
 
 ### Hibernation Status
 
 You can monitor hibernation status in the Xata Console:
 - Active branches are running and accepting connections
 - Hibernated branches are paused and not accepting connections
 
-### Waking Up a Hibernated Branch
+### Waking Up a Manually Hibernated Branch
 
 To reactivate a hibernated branch:
-1. Go to the branch settings
+1. Go to the Compute section under Branch Settings in the Xata Console
 2. Toggle "Hibernate branch" to "off"
-3. Click "Update branch settings"
+3. Click "Save compute settings"
 4. The branch will immediately start accepting connections
 
-## Automatic Scale to Zero (Coming Soon)
+Alternatively you can click the "Wake up branch" button in the branch overview to wake up a Hibernated Branch. You can also use the "Wake up branch" button available in the Queries, Extensions and Schemas tabs.
+
+## Automatic Scale to Zero
+
+Automatic scale to zero allows you to hibernate a branch after a configurable period of inactivity and automatically reactivate it when you attempt to connect to it. 
+
+### How to Enable Scale to Zero for a Branch
+
+You can configure your scale to zero settings at the project level:
+
+1. Go to the Compute section under Project Settings in the Xata Console
+2. Toggle "Enable for base branch" if you want to enable scale to zero for your base branch by default
+3. Toggle "Enable for child branches" if you want to enable scale to zero for child branches by default
+4. Configure the relevant inactivity period for base/child branches
+5. Click "Save settings"
+
+The project scale to zero settings will be the default when creating new branches within the project. However, you will also be prompted at branch creation time in case you want to update those settings on a per branch basis.
+
+Alternatively, you can also update the scale to zero settings once the branch has been created:
+
+1. Go to the Compute section under Branch Settings in the Xata Console
+2. Toggle "Scale to Zero" to enabled
+3. Configure the inactivity period for the branch (default to 30min)
+4. Click "Save compute settings"
+5. The branch will now start tracking the open connections, and will automatically scale to zero once the configured period of inactivity has passed.
 
-We're developing automatic scale-to-zero capabilities that will provide even more cost optimization:
+### Waking Up a Scaled to Zero Branch
 
-### Planned Features
+A branch that has been automatically scaled to zero can be reactivated:
+- By opening a connection to the branch (ex. connecting to the branch via psql)
+- Manually, by clicking on the "Wake up branch" icon that appears on the branch overview or any other branch tabs that allow it.
 
-- Branches will automatically hibernate after a configurable period of inactivity
-- Branches will automatically wake up when connection requests are made
-- You can set custom inactivity periods for different types of branches
+## Branching off a Hibernated Branch
 
-We're actively developing enhanced scale to zero capabilities, [please reach out with any feedback or feature requests](https://xata.io/discord).
+It is possible to create a child branch from a hibernated base branch (regardless of it being manually hibernated or scaled to zero). The base branch will not be woken up, keeping the costs to a minimum during the branching process.
 
 ## When to use Scale to Zero
 
@@ -75,4 +105,4 @@ Great for automated testing databases:
 - **[Instant Branching](/core-concepts/branching)** - Create branches for hibernation
 - **[Schema Changes](/core-concepts/schema-changes)** - Safe schema evolution
 - **[Data Anonymization](/core-concepts/anonymization)** - Secure development data
-- **[Deployment Models](/deployment)** - Choose your deployment strategy 
+- **[Deployment Models](/deployment)** - Choose your deployment strategy