diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/SimplePie/src/Cache/DataCache.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/SimplePie/src/Cache/DataCache.php	Fri Sep 05 18:52:52 2025 +0200
@@ -0,0 +1,119 @@
+<?php
+
+/**
+ * SimplePie
+ *
+ * A PHP-Based RSS and Atom Feed Framework.
+ * Takes the hard work out of managing a complete RSS/Atom solution.
+ *
+ * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 	* Redistributions of source code must retain the above copyright notice, this list of
+ * 	  conditions and the following disclaimer.
+ *
+ * 	* Redistributions in binary form must reproduce the above copyright notice, this list
+ * 	  of conditions and the following disclaimer in the documentation and/or other materials
+ * 	  provided with the distribution.
+ *
+ * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
+ * 	  to endorse or promote products derived from this software without specific prior
+ * 	  written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
+ * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package SimplePie
+ * @copyright 2004-2022 Ryan Parman, Sam Sneddon, Ryan McCue
+ * @author Ryan Parman
+ * @author Sam Sneddon
+ * @author Ryan McCue
+ * @link http://simplepie.org/ SimplePie
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ */
+
+namespace SimplePie\Cache;
+
+use InvalidArgumentException;
+
+/**
+ * Subset of PSR-16 Cache client for caching data arrays
+ *
+ * Only get(), set() and delete() methods are used,
+ * but not has(), getMultiple(), setMultiple() or deleteMultiple().
+ *
+ * The methods names must be different, but should be compatible to the
+ * methods of \Psr\SimpleCache\CacheInterface.
+ *
+ * @package SimplePie
+ * @subpackage Caching
+ * @internal
+ */
+interface DataCache
+{
+    /**
+     * Fetches a value from the cache.
+     *
+     * Equivalent to \Psr\SimpleCache\CacheInterface::get()
+     * <code>
+     * public function get(string $key, mixed $default = null): mixed;
+     * </code>
+     *
+     * @param string   $key     The unique key of this item in the cache.
+     * @param mixed    $default Default value to return if the key does not exist.
+     *
+     * @return array|mixed The value of the item from the cache, or $default in case of cache miss.
+     *
+     * @throws InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function get_data(string $key, $default = null);
+
+    /**
+     * Persists data in the cache, uniquely referenced by a key with an optional expiration TTL time.
+     *
+     * Equivalent to \Psr\SimpleCache\CacheInterface::set()
+     * <code>
+     * public function set(string $key, mixed $value, null|int|\DateInterval $ttl = null): bool;
+     * </code>
+     *
+     * @param string   $key   The key of the item to store.
+     * @param array    $value The value of the item to store, must be serializable.
+     * @param null|int $ttl   Optional. The TTL value of this item. If no value is sent and
+     *                                      the driver supports TTL then the library may set a default value
+     *                                      for it or let the driver take care of that.
+     *
+     * @return bool True on success and false on failure.
+     *
+     * @throws InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function set_data(string $key, array $value, ?int $ttl = null): bool;
+
+    /**
+     * Delete an item from the cache by its unique key.
+     *
+     * Equivalent to \Psr\SimpleCache\CacheInterface::delete()
+     * <code>
+     * public function delete(string $key): bool;
+     * </code>
+     *
+     * @param string $key The unique cache key of the item to delete.
+     *
+     * @return bool True if the item was successfully removed. False if there was an error.
+     *
+     * @throws InvalidArgumentException
+     *   MUST be thrown if the $key string is not a legal value.
+     */
+    public function delete_data(string $key): bool;
+}