# Go

Welcome to the Flagship Go SDK documentation!

The following article will guide you through the steps to get Flagship up and running on your Go servers or scripts using our client library with preconfigured methods to implement the Decision API.

Wants to have a look at the GitHub repo? [Link here](https://github.com/flagship-io/flagship-go-sdk).

Feel free to [contact us](mailto:product.feedback@abtasty.com?subject=Flagship%20Developer%20Documentation) if you have any questions regarding this documentation.

### Release notes

#### [2.1.0 (Latest version)](/server-side/sdks/go/go-v2-1.md)

**Added**

* Authenticate function receiver for Visitor type
* Unauthenticate function receiver for Visitor type
* Visitor Option Builder variadic functions
* WithAuthenticated option function for NewVisitor client method

#### 2.0.2

**Changed**

* Fix code smells & race conditions

#### 2.0.1

**Changed**

* Fix issues with bucketing polling

#### 2.0.0

**Changed**

* New API endpoints for better performance.
* Murmur hash allocation improvements in bucketing mode.

**Added**

* Object (map\[string]interface{}) / Array (\[]interface{}) modifications management.
* Timeout configuration.


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