---
title: Java-SDK - 3.2.0
slug: feature-experimentation/release-notes/java-sdk-3-2-0
createdAt: 2026-07-20T15:44:43.838Z
---

## 3.2.0

June 26th, 2019

### New Features:

- Added support for automatic datafile management via `HttpProjectConfigManager`:
- The [`HttpProjectConfigManager`](https://github.com/optimizely/java-sdk/blob/master/core-httpclient-impl/src/main/java/com/optimizely/ab/config/HttpProjectConfigManager.java)
  is part of the `core-httpclient-impl` package and is an implementation of the abstract
  [`PollingProjectConfigManager`](https://github.com/optimizely/java-sdk/blob/master/core-api/src/main/java/com/optimizely/ab/config/PollingProjectConfigManager.java) class.
- Users must first build the `HttpProjectConfigManager` with an SDK key and then and provide that instance to the Optimizely.Builder.
- An initial datafile can be provided to the `HttpProjectConfigManager` to bootstrap before making http requests for the hosted datafile.
- Requests for the datafile are made in a separate thread and are scheduled with fixed delay.
- Configuration updates can be subscribed to via the `Optimizely#addUpdateConfigNotificationHandler` or by subscribing to
  the NotificationCenter built with the `HttpProjectConfigManager`.
- Added `AsyncEventHandler.Builder` to be consistent with other Optimizely resources.
- The [`OptimizelyFactory`](https://github.com/optimizely/java-sdk/blob/master/core-httpclient-impl/src/main/java/com/optimizely/ab/OptimizelyFactory.java)
  was included in the `core-httpclient-impl` package and provides basic methods for instantiating the Optimizely SDK with a minimal number of parameters.
- Default configuration options for `HttpProjectConfigManager` and `AsyncEventHandler` can be overwritten using Java system properties, environment variables or via an `optimizely.properties` file
  to avoid hard coding the configuration options.

### Deprecated

- `Optimizely.builder(String, EventHandler)` was deprecated in favor of pure builder methods `withConfigManager` and `withEventHandler`.

[https://github.com/optimizely/java-sdk/releases/tag/3.2.0](https://github.com/optimizely/java-sdk/releases/tag/3.2.0)