Is MailerLite compatible with HPOS and Checkout Blocks?
Plugin by MailerLite · checked by Raz Technologies from v3.1.29 on · How we check
MailerLite 3.1.29 declares compatibility with HPOS (High-Performance Order Storage) in its code. MailerLite 3.1.29 does not declare Cart and Checkout Blocks compatibility, but its code uses the WooCommerce Blocks integration API. MailerLite does not state which WooCommerce version it was tested up to ("WC tested up to" header missing).
| Check | Status | Evidence |
|---|---|---|
| HPOS (High-Performance Order Storage) | Yes— Declares HPOS compatible (woo-mailerlite/woo-mailerlite.php). Evidence: declared. Verified 29 Oct 2026 (v3.1.29). | Compatibility declaration in woo-mailerlite/woo-mailerlite.php Declared |
| Cart & Checkout Blocks | Not declared— No Cart/Checkout Blocks declaration in v3.1.29. Evidence: declared. Verified 29 Oct 2026 (v3.1.29). | No declaration; the code uses the Blocks integration API Declared |
| WooCommerce 11.2.2 | Not declared— WC tested up to: not declared; current WooCommerce 11.2.2. Evidence: declared. Verified 29 Oct 2026 (v3.1.29). | "WC tested up to: not declared" in the plugin header Declared |
Read from the plugin's zip on WordPress.org (v3.1.29), 29 Oct 2026. Declared = what the plugin's own code states; not a lab test. Re-checked within hours of every new version.
What this means for your store
- You can enable HPOS with MailerLite active: the plugin's own code declares it supports the HPOS order tables. As with any change to order storage, try it on a staging copy first.
- If your store uses the block-based Cart and Checkout (the default for new WooCommerce stores), check that MailerLite's features appear there on a staging copy. The classic checkout (the [woocommerce_checkout] shortcode) is the fallback.
- Its code does use the WooCommerce Blocks integration API (payment gateways typically register a block payment method this way), so it likely works in the block checkout even without a declaration. This is a hint from the code, not a declaration.
MailerLite at a glance
| Version | 3.1.29 |
|---|---|
| Last updated | 29 Oct 2026 |
| Active installs | 30,000+ |
| Rating | 2.8/5 (64 ratings) |
| WC tested up to | Not declared |
| WC requires at least | Not declared |
| Requires WordPress | 3.0.1 |
| Tested up to WordPress | 6.8.12 |
| Requires PHP | 7.2.5 |
Source: WordPress.org, .
Versions we have checked
| Version | HPOS | Checkout Blocks | WC tested up to | Checked |
|---|---|---|---|---|
| 3.1.29 | declared compatible | not declared | — | 29 Oct 2026 |
| 3.1.28 | declared compatible | not declared | — | 23 Oct 2026 |
| 3.1.27 | declared compatible | not declared | — | 15 Oct 2026 |
A new row is added each time a new version is released and scanned.
Similar WooCommerce plugins: HPOS and Checkout Blocks
| Plugin | Installs | HPOS | Checkout Blocks |
|---|---|---|---|
| Email Marketing | 40,000+ | Yes | Not declared |
| Brevo for WooCommerce | 30,000+ | Yes | Yes |
| MWB HubSpot | 6,000+ | Yes | Yes |
| ActiveCampaign for WooCommerce | 5,000+ | Yes | Yes |
FAQ
Is MailerLite compatible with HPOS?
MailerLite 3.1.29 declares compatibility with HPOS (High-Performance Order Storage) in its code. Checked 29 October 2026 from the plugin's code on WordPress.org.
Does MailerLite work with the WooCommerce Checkout Blocks?
MailerLite 3.1.29 does not declare Cart and Checkout Blocks compatibility, but its code uses the WooCommerce Blocks integration API. Checked 29 October 2026.
Is MailerLite compatible with WooCommerce 11.2?
MailerLite does not state which WooCommerce version it was tested up to ("WC tested up to" header missing). Checked 29 October 2026.