Is Klarna for WooCommerce compatible with HPOS and Checkout Blocks?
Plugin by Klarna · checked by Raz Technologies from v4.13.6 on · How we check
Klarna for WooCommerce 4.13.6 declares compatibility with HPOS (High-Performance Order Storage) in its code. Klarna for WooCommerce 4.13.6 does not declare Cart and Checkout Blocks compatibility, but its code uses the WooCommerce Blocks integration API. Its "WC tested up to" header says WooCommerce 11.2.1; the current WooCommerce release is 11.2.2.
| Check | Status | Evidence |
|---|---|---|
| HPOS (High-Performance Order Storage) | Yes— Declares HPOS compatible (klarna-payments-for-woocommerce/klarna-payments-for-woocommerce.php). Evidence: declared. Verified 2 Nov 2026 (v4.13.6). | Compatibility declaration in klarna-payments-for-woocommerce/klarna-payments-for-woocommerce.php Declared |
| Cart & Checkout Blocks | Not declared— No Cart/Checkout Blocks declaration in v4.13.6. Evidence: declared. Verified 2 Nov 2026 (v4.13.6). | No declaration; the code uses the Blocks integration API Declared |
| WooCommerce 11.2.2 | Yes— WC tested up to 11.2.1; current WooCommerce 11.2.2. Evidence: declared. Verified 2 Nov 2026 (v4.13.6). | "WC tested up to: 11.2.1" in the plugin header Declared |
Read from the plugin's zip on WordPress.org (v4.13.6), 2 Nov 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 Klarna for WooCommerce 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 Klarna for WooCommerce'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.
Klarna for WooCommerce at a glance
| Version | 4.13.6 |
|---|---|
| Last updated | 2 Nov 2026 |
| Active installs | 20,000+ |
| Rating | 2.3/5 (20 ratings) |
| WC tested up to | 11.2.1 |
| WC requires at least | 5.6.0 |
| Requires WordPress | 6.7 |
| Tested up to WordPress | 7.1.4 |
| Requires PHP | 8.0 |
Source: WordPress.org, .
Versions we have checked
| Version | HPOS | Checkout Blocks | WC tested up to | Checked |
|---|---|---|---|---|
| 4.13.6 | declared compatible | not declared | 11.2.1 | 2 Nov 2026 |
| 4.13.5 | declared compatible | not declared | 11.2.1 | 26 Oct 2026 |
| 4.13.4 | declared compatible | not declared | 11.2.1 | 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 |
|---|---|---|---|
| Kustom Checkout | 10,000+ | Yes | Yes |
| Klarna Order Management (same developer) | 10,000+ | Yes | Not declared |
FAQ
Is Klarna for WooCommerce compatible with HPOS?
Klarna for WooCommerce 4.13.6 declares compatibility with HPOS (High-Performance Order Storage) in its code. Checked 2 November 2026 from the plugin's code on WordPress.org.
Does Klarna for WooCommerce work with the WooCommerce Checkout Blocks?
Klarna for WooCommerce 4.13.6 does not declare Cart and Checkout Blocks compatibility, but its code uses the WooCommerce Blocks integration API. Checked 2 November 2026.
Is Klarna for WooCommerce compatible with WooCommerce 11.2?
Its "WC tested up to" header says WooCommerce 11.2.1; the current WooCommerce release is 11.2.2. Checked 2 November 2026.