It’s been a great month for Kernl! Lots of new features, some bug fixes, and few updates to the license checking on the plugin and theme update checker files. Lets dive in!
- Gumroad License Validation – You can now use Kernl to validate your Gumroad licenses! This can be enabled for plugins or themes by going to the product edit screen, clicking the “License Management” tab, and then selecting “Validate Gumroad License?” at the bottom.
- Kernl Referral Program – Kernl has a referral program. For every 3 referrals you send us we’ll give you a free month. Customers signing up with your referral code get their first 3 months free.
- Restrict Updates to a Maximum Version – If you use Kernl’s license management you can now restrict update availability to a maximum version. For example if the current version of your product was 1.5.0 and you gave the user a license for < 1.6.0, then they would receive updates all the way through 1.5.X. This is a great way to drive more sales of your product!
- Plugin/Theme PHP Update Check Files – The license error display behavior of these files has been greatly improved. The error dismisses when it’s supposed to, only shows up on the updates and plugin|theme page, and the license error message can now be customized. It is highly recommended that you update. The file is also versioned now so knowing when to update in the future will be much easier.
- Purchase Code Deprecation – Kernl’s old purchase code frontend interface has been hidden behind a feature flag. The goal is the have the old purchase code functionality completely removed by the end of July.
- Copy Versions from Product to Product – To support special development styles, you can move versions of a product to another product. This is inherently dangerous and only toggled on for the person who requested it. If you think this might be useful please reach out to firstname.lastname@example.org.
- You can now easily click to a customer’s page from the License Management page.
- A bug was fixed where the customer filter would stay set even after you had navigated away from that page.
- Numerous copy changes were made on the License Management page and on the marketing site.
- Some feature flags were removed from features that have proved to be stable.
- The main route for plugin update checks (also the highest traffic route on Kernl) was refactored to use async/await instead of promise chains. This makes it much easier to maintain and improve.
If you use Gumroad to sell your WordPress plugins or themes you can now use Kernl to validate those licenses before new updates are made available.
How does it work?
When you create a plugin/theme in Kernl you can select the “Validate Gumroad License?” checkbox and fill out the “Gumroad Product Permalink” field. With those two fields completed Kernl will validate the license code passed into the Kernl via the update checker against Gumroad’s public license API. If the license code passes validation Kernl will allow the update to proceed.
That’s all there is to it! If you need any help getting things set up reach out to email@example.com.
Kernl WordPress license management now allows you to limit updates up to a specific version.
How it Works
Assuming that you already use Kernl’s license management, go to the License Management area of Kernl. Once there add or edit a license.
Now you can fill in the “Max Update Version” field. This field can simply be described as “the version of your product which requires a customer to buy a new license”. For example:
- Customer A bought a license with “Max Update Version” set to 2.0.0. The product was at version 1.7.0 at the time of purchase. Over the next few months you release 1.8.0, 1.9.0, 1.9.1, 2.0.0, 2.0.1. Customer A only receives product update versions 1.8.0, 1.9.0, and 1.9.1.
Why should I use this?
Drive. More. Sales. This new feature allows you to be extremely granular about what updates a specific customer receives. We also made updates to plugin_update_check.php and theme_update_check.php that allow you to customize the invalid/expired license message. We strongly believe that this combination of better license expiration messages and limiting through specific update version can be instrumental in helping you drive more sales.
For most of Kernl’s life our best channel for adding new customers has been word-of-mouth referrals and now you can be rewarded for referring new customers!
How It Works
When you go to your Kernl profile you’ll see a new section called “Referrals”.
It briefly explains how the Kernl referral program works, gives you your referral link, tells you how many referrals you’ve made, and how many free months you’ve earned.
The rewards for the Kernl referral program are as follows:
- For the referrer: Every 3 customers you refer to Kernl earn you one free month. No restrictions on plan or usage. There is a max of 24 referrals. If you somehow manage to bump in to this restriction, shoot us an email and we’ll work with you. 🙂
- For the new customer: By using your referral code they earn 3 free months of Kernl (instead of the usual 30 day free trial).
That’s it! Kernl’s referral program is intentionally simple. Thanks to everyone who spreads the word about Kernl. The more customers we have the better we become.
Welcome to May! Lets go ahead and dive right in.
- Data Export – You can now export (most) of your Kernl data. To export your data, log in to Kernl, go to your profile, and scroll down to the “Export My Data” button.
- Node.js Upgraded – Kernl has been updated to use the latest LTS version of Node.js. We are now on 8.11.1.
- Kernl Analytics Hardware Upgraded – Kernl analytics sees a lot of traffic on a daily basis. As that number continued to grow we were seeing some resource contention issues during peak periods. We were able to mitigate all resource issues by upgrading our hardware from a single vCPU setup to a three vCPU setup.
- https://kernl.us/wordpress-installation-statistics – Check out our new public WordPress installation statistics page! Most of this information is readily available on WordPress.org, but Kernl’s data is interesting because it only includes data points from websites that purchase plugins or themes. The data is also available via our API for public consumption.
Thats it for this month! I hope everyone in the northern hemisphere is enjoying the start of summer.