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<?xml version="1.0" encoding="UTF-8"?>
<package packagerversion="1.10.16" version="2.0" xmlns="http://pear.php.net/dtd/package-2.0" xmlns:tasks="http://pear.php.net/dtd/tasks-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://pear.php.net/dtd/tasks-1.0 http://pear.php.net/dtd/tasks-1.0.xsd http://pear.php.net/dtd/package-2.0 http://pear.php.net/dtd/package-2.0.xsd">
 <name>apcu</name>
 <channel>pecl.php.net</channel>
 <summary>APCu - APC User Cache</summary>
 <description>APC User Caching</description>
 <lead>
  <name>Joe Watkins</name>
  <user>krakjoe</user>
  <email>krakjoe@php.net</email>
  <active>yes</active>
 </lead>
 <lead>
  <name>Remi Collet</name>
  <user>remi</user>
  <email>remi@php.net</email>
  <active>yes</active>
 </lead>
 <lead>
  <name>Nikita Popov</name>
  <user>nikic</user>
  <email>nikic@php.net</email>
  <active>yes</active>
 </lead>
 <developer>
  <name>Anatol Belski</name>
  <user>ab</user>
  <email>ab@php.net</email>
  <active>yes</active>
 </developer>
 <date>2025-12-07</date>
 <time>07:58:53</time>
 <version>
  <release>5.1.28</release>
  <api>5.1.18</api>
 </version>
 <stability>
  <release>stable</release>
  <api>stable</api>
 </stability>
 <license uri="http://www.php.net/license">PHP License</license>
 <notes>
- Defragmentation now reclaims unused space from moved entries, resulting in better compaction.
- Shared memory for new entries is allocated faster in scenarios with many free memory blocks.
  This should improve APCu&apos;s insertion performance when entries are frequently deleted or
  replaced, or when APCu is used with larger amounts of memory.
- Trying to insert entries larger than the shared memory no longer results in cache wipes.
- Fix build against PHP 8.6.
- Fix apc.php compatibility with older apcu versions.
 </notes>
 <contents>
  <dir name="/">
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 </contents>
 <dependencies>
  <required>
   <php>
    <min>7.0.0-dev</min>
   </php>
   <pearinstaller>
    <min>1.10</min>
   </pearinstaller>
  </required>
 </dependencies>
 <providesextension>apcu</providesextension>
 <extsrcrelease>
  <configureoption default="no" name="enable-apcu-debug" prompt="Enable internal debugging in APCu" />
 </extsrcrelease>
 <changelog>
  <release>
   <date>2025-08-28</date>
   <version>
    <release>5.1.27</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed another hang introduced in apcu 5.1.25, which can occur when defragmentation is triggered
  under load.

Internal changes:
- The report_memleaks INI directive has been removed from all tests as it will be deprecated in
  PHP 8.5.
   </notes>
  </release>
  <release>
   <date>2025-08-05</date>
   <version>
    <release>5.1.26</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed hang introduced in apcu 5.1.25, which can occur when defragmentation is triggered under
  load.
- Fixed a test on PHP 8.5.
   </notes>
  </release>
  <release>
   <date>2025-07-28</date>
   <version>
    <release>5.1.25</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- If the cache is full, try to clean up expired entries based on their per-entry hard TTL even
  if the soft apc.ttl is 0. Previously the entire cache was discarded.
- If a new entry cannot be inserted due to fragmentation, the cache will be defragmented,
  combining many small free blocks into one big free block by moving around cache entries.
  This avoids the need to discard the entire cache in more cases.
- The access time (which is used by the soft apc.ttl) is now also updated when using
  apcu_exists().
- apc.entries_hint now defaults to 512 entries per 1MB of shared memory. Previously the
  default was 4096, independent of shm_size. This could lead to a large number of hash
  collisions if shm_size was increased without also increasing entries_hint.
- Added apc.mmap_hugepage_size to use huge pages of a certain size for the apcu shared memory
  segment. This requires support for huge pages to be enabled in the kernel. Note that even if
  this option is not set, shared memory is still configured to use transparent huge pages.
- The apc.shm_segments ini option has been removed. Multiple SHM segments are no longer
  supported. (They were already not supported when using mmap, which is the default mode of
  operation)
- The apc.smart configuration setting should now work more reliably. Values &gt; 1 can be used
  to increase the chance of discarding the entire cache when the amount of memory freed by
  removing expired entries was too small. This could be useful if performance degrades due to
  executing the logic to remove expired entries (+ defragmentation) too frequently during
  periods of high memory usage.
- The number of cache cleanups performed (removal of expired entries) is now available
  in the array returned by apcu_cache_info() (via array key &quot;cleanups&quot;).
- The number of defragmentations performed is now available in the array returned by
  apcu_cache_info() (via array key &quot;defragmentations&quot;).
- Fixed several issues that caused inserting new entries to fail unexpectedly.

Internal changes:
- Fixed -Wclobbered compiler warnings.
- All cache data structures are now relocatable, i.e. independent of the base address of the
  cache. This enables defragmentation support.
- Hash slots now use doubly linked lists. This is necessary for defragmentation.
   </notes>
  </release>
  <release>
   <date>2024-09-21</date>
   <version>
    <release>5.1.24</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Make compatible with PHP 8.4.
- apc.php: Preserve search parameter when deleting entry.
- apc.php: Allow arbitrary search regex.
   </notes>
  </release>
  <release>
   <date>2023-11-11</date>
   <version>
    <release>5.1.23</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Revert use of monotonic clock for TTL (#451)
- Fix a crash when serializing packed arrays (e.g. lists) in PHP 8.2+ with `apc.serializer=default`.
- Reduce memory usage when serializing packed arrays (e.g. lists) in PHP 8.2+ with `apc.serializer=default`.
- Speed up serializing arrays with `apc.serializer=default`.
- Reduce memory usage when unserializing instances of the empty array in PHP 7.3+.
- Removed no longer working apcue extension.
- Increased limit on maximum number of slots.
- Made tests compatible with PHP 8.3.
   </notes>
  </release>
  <release>
   <date>2022-09-19</date>
   <version>
    <release>5.1.22</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- PHP 8.2 compatibility
- PHP 8.1 compatibility in apc.php
- Fix --enable-apcu-rwlocks configure option
- Enable transparent huge pages for mmap memory
- Use monotonic clock for TTL
   </notes>
  </release>
  <release>
   <date>2021-10-07</date>
   <version>
    <release>5.1.21</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed compatibility with PHP 8.1 by adding return types to APCUIterator.
- APCUIterator::current() and ::key() can no longer be called on an invalid iterator.
   </notes>
  </release>
  <release>
   <date>2021-03-04</date>
   <version>
    <release>5.1.20</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fix deadlocks when other apcu_* functions are used inside apcu_entry(). It should now be safe to use any functions inside the apcu_entry() callback.
- Fix division by zero exception in apc.php.
- Fix handling of references in PHP 8 if &quot;default&quot; serializer is used (which is not the default).
- Fix string reuse handling if &quot;default&quot; serializer is used (which is not the default).
- Check for failures when acquiring read locks to report problems earlier (write locks were already checked previously).
- Adjust tests for current PHP 8.1 development branch.
- Remove *_api.h headers. Use apc_cache.h instead of apc_cache_api.h etc.
   </notes>
  </release>
  <release>
   <date>2020-10-05</date>
   <version>
    <release>5.1.19</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed apcu_store() with integer keys (#388).
- Made apc.use_request_time=0 the default (#391).
- Made apcu compatible with PHP 8.0.
   </notes>
  </release>
  <release>
   <date>2019-10-28</date>
   <version>
    <release>5.1.18</release>
    <api>5.1.18</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Implement apcu_inc() and apcu_dec() using atomic operations. This means that these functions no longer have to acquire a write lock. These functions will now wraparound on overflow, instead of saturating to a floating point value.
- Make table header in apc.php sticky.
- Fix compile warnings related to mktemp() usage.
- Fix compatibility with PHP 8.0.
- Fix required number of arguments for apcu_store() returned by Reflection.
   </notes>
  </release>
  <release>
   <date>2019-02-08</date>
   <version>
    <release>5.1.17</release>
    <api>5.1.15</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed compatibility with PHP 7.4 and PHP 8.0.
   </notes>
  </release>
  <release>
   <date>2018-12-16</date>
   <version>
    <release>5.1.16</release>
    <api>5.1.15</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fix build on OSX.
   </notes>
  </release>
  <release>
   <date>2018-12-07</date>
   <version>
    <release>5.1.15</release>
    <api>5.1.15</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Restore apc.serializer=php as the default, as the &quot;default&quot; serializer still/again has issues.
- Fix possible issues in persistence of arrays with the &quot;default&quot; serializer.
- Attempt to reduce shared memory fragmentation.
   </notes>
  </release>
  <release>
   <date>2018-11-21</date>
   <version>
    <release>5.1.14</release>
    <api>5.1.14</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed GH #347: Disable slam defense by default.
- Fix potential issue with destruction of locks. This does not affect Linux, but might affect Windows and BSD.
- Use mutex instead of rwlock for shared memory allocator (if pthreads mutex available).
- Require only read-lock for apcu_cas(), by using atomic compare-and-swap.
   </notes>
  </release>
  <release>
   <date>2018-11-19</date>
   <version>
    <release>5.1.13</release>
    <api>5.1.13</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Reimplement persistence logic using precise allocation rather than memory pools. This reduces
memory usage of cache entries, especially for small values, and improves performance of persisting
and unpersisting values.
- Fixed GH #335: Stampede protection is broken.
- Fixed GH #328: Segfault in apcu_key_info() if APCu is disabled.
- Generally make the behavior of functions if APCu is disabled more consistent.
- Fixed PHP bug #72980: Empty strings are now consistently allowed as cache keys.
- Optimized apcu_key_info() and apcu_cache_info() by using interned strings.
- Fix build against PHP master (PHP 7.4).
- Many changes to internal C APIs.
   </notes>
  </release>
  <release>
   <date>2018-07-09</date>
   <version>
    <release>5.1.12</release>
    <api>5.1.12</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- gh#307: Fix &apos;Timout&apos; sort option (apc.php).
- gh#308: Keep search parameter on cache entry detail link (apc.php).
- Fix --enable-apcu-clear-signal support.
- Show entries with expired global TTL in APCuIterator.
- Respect TTL when calculating APCuIterator totals.
- The per-entry TTL now always takes precedence over the global TTL.
- The global TTL is now always relative to the access time.
- apcu_inc() and apcu_dec() no longer update hard-expired entries. Instead a new entry is created.
- Added optional $ttl argument to apcu_inc() and apcu_dec(), used when creating a new entry.
- PHP bug #76145: Fix use of APCu inside Serializer::(un)serialize().
- gh#304: If apcu_cas() is used on a non-existing entry, don&apos;t insert it.
- gh#295: Improve APCuIterator performance by using PCRE JIT and preallocating key strings.
- Reduce the memory overhead of cache entries.
- Prevent potential memory corruption in the cache slam defense implementation.
- Ensure cache entry references are released on bailout during unserialization.
- Make support for atomic operations a hard requirement for building APCu.
- Check write-lock acquisition for failure, to help debugging deadlock situations.
- Make sure apcu_inc/dec are atomic when working on a non-existing entry.
- Many changes to internal C APIs.
   </notes>
  </release>
  <release>
   <date>2018-03-08</date>
   <version>
    <release>5.1.11</release>
    <api>5.1.11</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix gh#246 apcu_entry hangs
- fix gh#259 deadlock in apcu_store
- fix gh#281 undefined variable in apc.php
- fix handling of fatal errors in apcu_entry
- check string lengths when looking up keys
- many internal C APIs changed
   </notes>
  </release>
  <release>
   <date>2018-02-16</date>
   <version>
    <release>5.1.10</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix gh#247 when a NUL char is used as key, apcu_fetch(array) truncates the key
- fix gh#248 apcu_fetch may return values causing zend_mm_corruption or segfaults
  when custom serializer is used
- fix gh#260 apcu.serializer=default results in segfault
- fix gh#274 non-portable shell == in config.m4
- fix crash when passing bad array to apcu_delete
- improve fix gh#266 refcounting errors in APCIterator
- fix for PHP 7.3 compatibility
   </notes>
  </release>
  <release>
   <date>2018-01-02</date>
   <version>
    <release>5.1.9</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix gh#234 mmap disabled when configure is called with --enable-apcu-mmap
- fix gh#226 Warning: apcu_fetch(): apc_fetch() expects a string or array of strings.
- mitigate gh#223 Fatal error when starting php on windows
- add support for PCRE2 in 7.3
- use row formatting for information in phpinfo() tables
- set IS_STR_PERSISTENT so refcounting failures are reported by -DRC_DEBUG=1
- fix gh#266 refcounting errors in APCIterator
   </notes>
  </release>
  <release>
   <date>2017-01-16</date>
   <version>
    <release>5.1.8</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix gh#207 Segmentation fault in apc_sma_api_free()
- fix gh#221 memory leak
- update to apc dashboard (Tyson Andre)
   </notes>
  </release>
  <release>
   <date>2016-10-21</date>
   <version>
    <release>5.1.7</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fixes gh#19: hung apaches on pthread wrlocks
- fixes gh#203: segfaults in bailout / longjmp
   </notes>
  </release>
  <release>
   <date>2016-10-06</date>
   <version>
    <release>5.1.6</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fixes gh#19:  Hung apaches on pthread wrlocks
- fixes gh#188: Fix Segfault in ZTS build when locking (Tyson Andre)
- fixes gh#194: apcu_entry ttl not working
- fixes gh#189: SegFault in apc_copy_zval
- fixes gh#185: zend_mm_heap corrupted
- fixes gh#190: memory leak/failed check for duplicates
   </notes>
  </release>
  <release>
   <date>2016-06-07</date>
   <version>
    <release>5.1.5</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix version check in control panel page (gh#182, lennartwesdijk)
- do not create null strings, palloc may fail
   </notes>
  </release>
  <release>
   <date>2016-05-12</date>
   <version>
    <release>5.1.4</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix possible memory leak
- fix gh#168 drop trying to return strings from shm
- fix gh#170 do not create entries when serialization fails
   </notes>
  </release>
  <release>
   <date>2016-01-15</date>
   <version>
    <release>5.1.3</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fixed macro using interlocked increment in Windows
- fix gh#158 apc_inc() with negative step value hangs the process
- fix gh#164 apc_inc() can take minutes with huge step value
   </notes>
  </release>
  <release>
   <date>2015-12-02</date>
   <version>
    <release>5.1.2</release>
    <api>5.1.2</api>
   </version>
   <stability>
    <release>stable</release>
    <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- be wholly consistent with APC in use of atomics
   </notes>
  </release>
  <release>
   <date>2015-11-20</date>
   <version>
    <release>5.1.0</release>
    <api>5.1.0</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- PHP 7 compatibility
- provide APC compatibility in &quot;apc&quot; optional extension
- move APCIterator to APC compatibility extension
- add APCuIterator without cache argument
- drop apcu_bin_* functions
- add apcu_entry(key, callback, ttl) function
- fix race on refcount of entry when using rwlocks (or on windows)
   </notes>
  </release>
  <release>
   <date>2014-10-11</date>
   <time>17:02:21</time>
   <version>
    <release>4.0.7</release>
    <api>4.0.7</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix inconsistent member names for entries in userland
   </notes>
  </release>
  <release>
   <date>2014-06-12</date>
   <time>13:39:04</time>
   <version>
    <release>4.0.6</release>
    <api>4.0.6</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix issues with stddef inclusion causing compilation issue
   </notes>
  </release>
  <release>
   <date>2014-06-11</date>
   <time>05:48:25</time>
   <version>
    <release>4.0.5</release>
    <api>4.0.5</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- fix compile with 5.6 beta
   </notes>
  </release>
  <release>
   <date>2014-03-01</date>
   <time>07:29:53</time>
   <version>
    <release>4.0.4</release>
    <api>4.0.4</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fix deadlocking due to destroyed locks
- Fix various compatibility bugs
   </notes>
  </release>
  <release>
   <date>2014-01-27</date>
   <time>09:00:00</time>
   <version>
    <release>4.0.3</release>
    <api>4.0.3</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fix various compatibility problems
- Fix a few lingering faults
- Remove experimental eval serializer
- Fix iterator for compatibility
   </notes>
  </release>
  <release>
   <date>2013-09-14</date>
   <time>21:00:00</time>
   <version>
    <release>4.0.2</release>
    <api>4.0.2</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
- Fixed bug #15 APC compatibility option broken (Anatol)
- Changes to m4/w32, various (Anatol)
- Fix build is always in debug mode, Related to #15 (Anatol)
- Fix apc_clear_cache compatibility issues, Issue #18 (Joe)
- Fix APCIterator compatibility issues, Issue #20 (Anatol)
- Assert cache clear only when &apos;user&apos; was passed #18 (Anatol)
- fix type casts time_t vs ulong (Anatol)
- Fixed the gc routine (Anatol)
- Restore APC hook for register serializer, Issue #24, #25 (Remi Collet)
- Compiler warnings avoided, various (Remi Collet)
- Don&apos;t segfault if mmap() failed, Issue #27 (Anatol)
- Fix variable typo in config.m4 for php_cv_semun (Kevin Abel)
- Revert horribleness related to APC_ALIGN (Joe)
- Fix call to stream open wrapper (Joe)
- php_apcu.dll does not load anymore under X64, Issue #29 (Anatol)
- Fix external api functionality (Joe)
- Bring back fcntl support for FreeBSD, Issue #36 (Joe)
- Bring back spinlocks, various issues (Joe)
- Fixed symbol clashing, windows debug mode, again (Anatol)
- apcu_key_info / apc_cache_stat functions (Joe)
   </notes>
  </release>
  <release>
   <date>2013-03-27</date>
   <time>03:10:00</time>
   <version>
    <release>4.0.0</release>
    <api>4.0.0</api>
   </version>
   <stability>
    <release>beta</release>
    <api>beta</api>
   </stability>
   <license uri="http://www.php.net/license">PHP License</license>
   <notes>
All opcode caching abilities removed
The default locking is now rwlocks
APCu API installed in build environment
Please see TECHNOTES/README.md
   </notes>
  </release>
 </changelog>
</package>

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