Require WordPress 6.1 or newer

Fixes #96.
chesio · Jul 7, 2023 · ff86662 · ff86662
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 This release has been tested with WordPress 6.2.
 
+### Changed
+
+* WordPress 6.1 or newer is now required [#96](https://github.com/chesio/bc-cache/issues/96).
+
 ## Version 3.1.0 (2023-01-04)
 
 ### Changed

diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@ BC Cache can cache not only HTML pages, but [core XML sitemaps](https://make.wor
 
 * Apache webserver with [mod_rewrite](https://httpd.apache.org/docs/current/mod/mod_rewrite.html) enabled
 * [PHP](https://www.php.net/) 7.3 or newer
-* [WordPress](https://wordpress.org/) 5.9 or newer with [pretty permalinks](https://codex.wordpress.org/Using_Permalinks) on
+* [WordPress](https://wordpress.org/) 6.1 or newer with [pretty permalinks](https://codex.wordpress.org/Using_Permalinks) on
 
 ## Limitations
 

diff --git a/bc-cache.php b/bc-cache.php
@@ -8,7 +8,7 @@
  * Author: Česlav Przywara <ceslav@przywara.cz>
  * Author URI: https://www.chesio.com
  * Requires PHP: 7.3
- * Requires WP: 5.9
+ * Requires WP: 6.1
  * Tested up to: 6.2
  * Text Domain: bc-cache
  * GitHub Plugin URI: https://github.com/chesio/bc-cache

diff --git a/classes/BlueChip/Cache/Plugin.php b/classes/BlueChip/Cache/Plugin.php
@@ -296,9 +296,8 @@ public function init(): void
             }
         } else {
             // Add action to catch output buffer.
-            // Use `send_headers` action from WordPress 6.1 on - see:
             // https://make.wordpress.org/core/2022/10/10/moving-the-send_headers-action-to-later-in-the-load/
-            add_action(is_wp_version_compatible('6.1') ? 'send_headers' : 'template_redirect', [$this, 'startOutputBuffering'], 0, 0);
+            add_action('send_headers', [$this, 'startOutputBuffering'], 0, 0);
         }
 
         if ($this->cache_crawler) {