This Comet Cache release candidate includes 2 bug fixes, 2 compatibility improvements, and 1 enhancement, and 1 new feature. You can download and try out this release using the links below. Please report bugs and feedback on GitHub.

Comet Cache Pro testers: Don't forget that you can automatically receive Release Candidates by telling the Comet Cache Plugin Updater to check for Release Candidates in Comet Cache → Plugin Options → Update Credentials → Beta Program.


Lite: Comet Cache Lite v170808-RC

Pro: Comet Cache Pro v170808-RC (you must be logged into your account at to access this download)

Installation Instructions

  1. Deactivate and Delete any existing Comet Cache plugin via Dashboard → Plugins
  2. Download the release candidate using the link above
  3. Install the release candidate you downloaded by going to Dashboard → Plugins → Add New → Upload and selecting the downloaded zip file
  4. Activate Comet Cache

Changelog for Comet Cache v170808-RC (Release Candidate)

  • New Feature: Memcached / RAM (Pro): Comet Cache Pro now includes support for Memcached / AWS ElastiCache to serve the cache directly from RAM. This allows for a faster cache delivery than what is possible when serving the cache via disk. Memcached / AWS ElastiCache can be configured from WordPress Dashboard Comet Cache Pro Plugin Options RAM / Memcached. See Issue #47

  • Enhancement: Added Referrer-Policy to whitelist for cachable HTTP headers. See Issue #892.

  • Bug Fix (Pro): The Cache Statistics feature was broken when the PHP disk_total_space() and/or disk_free_space() functions were disabled by the PHP configuration. Comet Cache now handles this scenario gracefully by hiding disk-related stats when those functions are not allowed. See Issue #775

  • Bug Fix (Pro): The HTML Compressor was returning an empty string upon encountering an invalid UTF-8 sequence. See Issue #871 reported by a Comet Cache user.

  • Compatibility (Pro): Many improvements to the Pro software update system, including changes to the API Endpoints and the Proxy Fallback endpoint. See Issue #879 and Issue #315 for full details.

  • Compatibility: Fixed a WooCommerce compatibility issue that was generating a "Notice: id was called incorrectly. Product properties should not be accessed directly." Props @vestaxpdx. See Issue #896.

Please note that when this version leaves beta and an official release is made, the WordPress Plugin Updater will automatically detect the new version on and ask you to upgrade (applies to Comet Cache Lite). If you're using Comet Cache Pro, please configure the Pro Plugin Updater (Dashboard → Comet Cache → Plugin Updater) so that you are notified when there is a new official release.

Please report bugs and feedback on GitHub.