---
title: Go-SDK - 1.3.0-beta1
slug: feature-experimentation/release-notes/go-sdk-1-3-0-beta1
docTags: 
createdAt: 2026-07-20T15:44:45.060Z
---

\## \[1.3.0-beta1] - June 16th, 2020
\## New Features
\- Add support for JSON feature variables (\[#250]\([https://github.com/optimizely/go-sdk/pull/250](https://github.com/optimizely/go-sdk/pull/250)), \[#251]\([https://github.com/optimizely/go-sdk/pull/251](https://github.com/optimizely/go-sdk/pull/251)), \[#253]\([https://github.com/optimizely/go-sdk/pull/253](https://github.com/optimizely/go-sdk/pull/253)))
\- Add support for authenticated datafiles (\[#267]\([https://github.com/optimizely/go-sdk/pull/267](https://github.com/optimizely/go-sdk/pull/267)))
\- Expose ability to customize URL for event dispatcher. (\[#268]\([https://github.com/optimizely/go-sdk/pull/268](https://github.com/optimizely/go-sdk/pull/268)))

[https://github.com/optimizely/go-sdk/releases/tag/v1.3.0-beta1](https://github.com/optimizely/go-sdk/releases/tag/v1.3.0-beta1)