---
title: Arez 0.52 released
author: Arez Project
authorURL: https://github.com/arez
---

[Full Changelog](https://github.com/arez/arez/compare/v0.51...v0.52)

Changes in this release:

#### Fixed
* **\[core\]** Ensure that `ArezContext.willPropagateSpyEvents()` is used internally rather than chaining
  it with other checks such as `Arez.areSpiesEnabled()` which should be functionally equivalent but confuse
  the GWT compiler so that it can not always perform DCE effectively.
* **\[core\]** Fixed a bug introduced in `v0.50` where the invariant checking was disabled even when the
  `arez.ArezDev` gwt module was included. The fix was to explicitly enable the configuration settings in
  the module.

#### Changed
* **\[core\]** Move the extraction of the configuration setting `arez.logger` to `arez.ArezConfig` to be
  consistent with other configuration settings.
* **\[core\]** Enhanced the `arez.logger` setting to support `"console"` and `"console_js"` values and
  default to `"console_js"` in GWT based applications. This eliminates the need to compile the
  `java.util.logging.*` classes in GWT application if it is not used other than for the Arez library.

Update site to add news about the 0.52 release
Update site to add news about the 0.52 release
