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Release 1.5.4 (6/16/2010)
=========================

* Fix import error with InvalidCryptoBackendError.
* Fix for domain querying on property.
* Test cleanups
* Fix bug with warnings preventing proper running under Jython.

Release 1.5.3 (3/2/2010)
========================

* Fix Python 2.4 incompatibility with google import.

Release 1.5.2 (3/1/2010)
========================

* pkg_resources scanning for additional Beaker back-ends gracefully handles
  situations where its not present (GAE). Fixes #36.
* Avoid timing attacks on hash comparison.
* Provide abstract base for MemoryNamespaceManager that deals with
  "dictionaries".
* Added tests for invalidating cache, and fixed bug with function cache when
  no args are present.
* The SQLAlchemy backends require SQLAlchemy 0.4 or greater (0.6 recommended).
* Rudimental Python 3 support is now available.   Simply use Python 3 with
  Distribute and "python setup.py install" to run 2to3 automatically,
  or manually run 2to3 on "beaker" and "tests" to convert to a 
  Python 3 version.
* Added support for PyCrypto module to encrypted session, etc. in addition
  to the existing pycryptopp support.

Release 1.5.1 (12/17/2009)
==========================

* Fix cache namespacing.

Release 1.5 (11/23/2009)
========================

* Update memcached to default to using pylibmc when available.
* Fix bug when cache value doesn't exist causing has_key to throw
  an exception rather than return False. Fixes #24.
* Fix bug where getpid under GAE is used improperly to assume it
  should be a non-string. Fixes #22.
* Add cache_region decorator that works *before* configuration of
  the cache regions have been completed for use in module-level
  decorations.
* Fix bug where has_value sees the value before its removed.
* Improved accuracy of "dogpile" checker by removing dependency
  on "self" attributes, which seem to be slightly unreliable
  in highly concurrent scenarios.

Release 1.4.2 (9/25/2009)
=========================

* Fix bug where memcached may yank a value after the has_value but before
  the value can be fetched.
* Fix properties for setting the path. Fixes #15.
* Fix the 'TypeError: argument must be an int, or have a fileno()
  method' erorr sporadically emitted by FileSynchronizer under moderate
  load.

Release 1.4.1 (9/10/2009)
=========================

* Fix verification of options to throw an error if a beaker param is an
  empty string.
* Add CacheManager.invalidate function to easily invalidate cache
  spaces created by the use of the cache decorator.
* Add CacheManager.region_invalidate function to easily invalidate cache
  spaces created by the use of the cache_region decorator.
* Fix the InvalidCryptoBackendError exception triggering a TypeError. Patch
  from dz, fixes #13.

Release 1.4 (7/24/2009)
=======================

* Fix bug with hmac on Python 2.4. Patch from toshio, closes ticket #2133
  from the TurboGears2 Trac.
* Fix bug with occasional ValueError from FileNamespaceManager.do_open.
  Fixes #10.
* Fixed bug with session files being saved despite being new and not
  saved.
* Fixed bug with CacheMiddleware overwriting configuration with default
  arguments despite prior setting.
* Fixed bug with SyntaxError not being caught properly in entry point
  discovery.
* Changed to using BlobProperty for Google Datastore.
* Added domain/path properties to the session. This allows one to
  dynamically set the cookie's domain and/or path on the fly, which
  will then be set on the cookie for the session.
* Added support for cookie-based sessions in Jython via the JCE (Java
  Cryptography Extensions). Patch from Alex Grönholm.
* Update Beaker database extensions to work with SQLAlchemy 0.6
  PostgreSQL, and Jython.

Release 1.3.1 (5/5/2009)
========================

* Added a whole bunch of Sphinx documentation for the updated site.
* Added corresponding remove as an alias to the caches remove_value.
* Fixed cookie session not having an invalidate function.
* Fix bug with CacheMiddleware not using proper function to load
  configuration options, missing the cache regions.

Release 1.3 (4/6/2009)
======================

* Added last_accessed attribute to session to indicate the previous time the
  session was last accessed.
* Added setuptools entry points to dynamically discover additional namespace
  backends.
* Fixed bug with invalidate and locks, fixes #594.
* Added cache.cache decorator for arbitrary caching.
* Added cache.region decorator to the CacheManager object.
* Added cache regions. Can be provided in a configuration INI type, or
  by adding in a cache_regions arg to the CacheManager.
* Fix bug with timeout not being saved properly.
* Fix bug with cookie-only sessions sending cookies for new sessions even
  if they weren't supposed to be saved.
* Fix bug that caused a non-auto accessed session to not record the time it
  was previously accessed resulting in session timeouts.
* Add function to parse configuration dicts as appropriate for use with the
  CacheManager.
* The "expiretime" is no longer passed to the memcached backend - since
  if memcached makes the expired item unavailable at the same time the
  container expires it, then all actors must block until the new value
  is available (i.e. breaks the anti-dogpile logic).

Release 1.2.3 (3/2/2009)
========================

* Fix accessed increment to take place *after* the accessed time is checked
  to see if it has expired. Fixes #580.
* data_dir/lock_dir parameters are optional to most backends; if not
  present, mutex-based locking will be used for creation functions
* Adjustments to Container to better account for backends which
  don't provide read/write locks, such as memcached.  As a result,
  the plain "memory" cache no longer requires read/write mutexing.

Release 1.2.2 (2/14/2009)
=========================

* Fix delete bug reported by andres with session not being deleted.

Release 1.2.1 (2/09/2009)
=========================

* Fix memcached behavior as memcached returns None on nonexistent key
  fetch which broke invalid session checking.

Release 1.2 (1/22/2009)
=======================

* Updated session to only save to the storage *once* no under any/all
  conditions rather than every time save() is called.
* Added session.revert() function that reverts the session to the state at
  the beginning of the request.
* Updated session to store entire session data in a single namespace key,
  this lets memcached work properly, and makes for more efficient use of the
  storage system for sessions.

Release 1.1.3 (12/29/2008)
==========================

* Fix the 1.1.2 old cache/session upgrader to handle the has_current_value
  method.
* Make InvalidCacheBackendError an ImportError.

Release 1.1.2 (11/24/2008)
==========================

* Upgrade Beaker pre-1.1 cache/session values to the new format rather than
  throwing an exception.

Release 1.1.1 (11/24/2008)
==========================

* Fixed bug in Google extension which passed arguments it should no longer
  pass to NamespaceManager.
* Fixed bug involving lockfiles left open during cache "value creation"
  step.

Release 1.1 (11/16/2008)
========================

* file-based cache will not hold onto cached value once read from file;
  will create new value if the file is deleted as opposed to re-using
  what was last read.  This allows external removal of files to be
  used as a cache-invalidation mechanism.
* file-based locking will not unlink lockfiles; this can interfere
  with the flock() mechanism in the event that a concurrent process
  is accessing the files.  
* Sending "type" and other namespace config arguments to cache.get()/
  cache.put()/cache.remove_value() is deprecated.   The namespace
  configuration is now preferred at the Cache level, i.e. when you construct
  a Cache or call cache_manager.get_cache().  This removes the ambiguity
  of Cache's dictionary interface and has_key() methods, which have
  no awareness of those arguments.
* the "expiretime" in use is stored in the cache itself, so that it is 
  always available when calling has_key() and other methods.  Between
  this change and the deprecation of 'type', the Cache no longer has
  any need to store cache configuration in memory per cache key, which in a 
  dynamically-generated key scenario stores an arbitrarily large number 
  of configurations - essentially a memory leak.
* memcache caching has been vastly improved, no longer stores a list of
  all keys, which along the same theme prevented efficient usage for an 
  arbitrarily large number of keys.  The keys() method is now unimplemented, 
  and cache.remove() clears the entire memcache cache across all namespaces.  
  This is what the memcache API provides so it's the best we can do. 
* memcache caching passes along "expiretime" to the memcached "time"
  parameter, so that the cache itself can reduce its size for elements which
  are expired (memcache seems to manage its size in any case, this is just a
  hint to improve its operation).
* replaced homegrown ThreadLocal implementation with threading.local, falls
  back to a 2.3 compat one for python<2.4

Release 1.0.3 (10/14/2008)
==========================

* Fixed os.getpid issue on GAE.
* CookieSession will add '_expires' value to data when an expire time is set, 
  and uses it

Release 1.0.2 (9/22/2008)
=========================

* Fixed bug caused when attempting to invalidate a session that hadn't
  previously been created.

Release 1.0.1 (8/19/2008)
=========================

* Bug fix for cookie sessions to retain id before clearing values.

Release 1.0 (8/13/2008)
=======================

* Added cookie delete to both cookie only sessions and normal sessions, to
  help with proxies and such that may determine whether a user is logged in
  via a cookie. (cookie varies, etc.). Suggested by Felix Schwarz.
* cache.get_value() now uses the given **kwargs in all cases in the same
  manner as cache.set_value().  This way you can send a new createfunc
  to cache.get_value() each time and it will be used.

Release 0.9.5 (6/19/2008)
=========================

* Fixed bug in memcached to be tolerant of keys disappearing when memcached
  expires them.
* Fixed the cache functionality to actually work, previously set_value was
  ignored if there was already a value set.

Release 0.9.4 (4/13/2008)
=========================

* Adding 'google' backend datastore, available by specifying 'google' as the
  cache/session type. Note that this takes an optional table_name used to name
  the model class used.
* SECURITY BUG: Fixed security issue with Beaker not properly removing
  directory escaping characters from the session ID when un-signed sessions
  are used. Reported with patch by Felix Schwarz.
* Fixed bug with Beaker not playing well with Registry when its placed above
  it in the stack. Thanks Wichert Akkerman.

Release 0.9.3 (2/28/2008)
=========================

* Adding 'id' to cookie-based sessions for better compatibility.
* Fixed error with exception still raised for PyCrypto missing.
* WARNING: Session middleware no longer catches Paste HTTP Exceptions, apps
  are now expected to capture and handle Paste HTTP Exceptions themselves.
* Fixed Python 2.4 compatibility bug in hmac.
* Fixed key lookup bug on cache object to only use the settings for the key
  lookup. Found by Andrew Stromnov.

Release 0.9.2 (2/13/2008)
=========================

* Added option to make Beaker use a secure cookie.
* Removed CTRCipher as pycryptopp doesn't need it.
* Changed AES to use 256 bit.
* Fixed signing code to use hmac with sha for better signing security.
* Fixed memcached code to use delete_multi on clearing the keys for efficiency
  and updated key retrieval to properly store and retrieve None values.
* Removing cookie.py and signed cookie middleware, as the environ_key option
  for session middleware provides a close enough setting.
* Added option to use just cookie-based sessions without requiring
  encryption.
* Switched encryption requirement from PyCrypto to pycryptopp which uses a 
  proper AES in Counter Mode.

Release 0.9.1 (2/4/2008)
========================

* Fixed bug in middleware using module that wasn't imported.

Release 0.9 (12/17/07)
======================

* Fixed bug in memcached replace to actually replace spaces properly.
* Fixed md5 cookie signature to use SHA-1 when available.
* Updated cookie-based session storage to use 256-bit AES-CTR mode with a
  SHA-1 HMAC signature. Now requires PyCrypto to use for AES scheme.
* WARNING: Moved session and cache middleware to middleware, as per the old
  deprecation warnings had said was going to happen for 0.8.
* Added cookie-only session storage with RC4 ciphered encryption, requires 
  Python 2.4.
* Add the ability to specify the cookie's domain for sessions.

Release 0.8.1 (11/15/07)
========================

* Fixed bug in database.py not properly handling missing sqlalchemy library.

Release 0.8 (10/17/07)
======================

* Fixed bug in prior db update causing session to occasionally not be written
  back to the db.
* Fixed memcached key error with keys containing spaces. Thanks Jim Musil.
* WARNING: Major change to ext:database to use a single row per namespace.
  Additionally, there's an accessed and created column present to support 
  easier deletion of old cache/session data. You *will* need to drop any
  existing tables being used by the ext:database backend.
* Streamline ext:database backend to avoid unnecessary database selects for
  repeat data.
* Added SQLAlchemy 0.4 support to ext:database backend.

Release 0.7.5 (08/18/07)
========================

* Fixed data_dir parsing for session string coercions, no longer picks up None
  as a data_dir.
* Fixed session.get_by_id to lookup recently saved sessions properly, also
  updates session with creation/access time upon save.
* Add unit tests for get_by_id function. Updated get_by_id to not result in
  additional session files.
* Added session.get_by_id function to retrieve a session of the given id.

Release 0.7.4 (07/09/07)
========================

* Fixed issue with Beaker not properly handling arguments as Pylons may pass
  them in.
* Fixed unit test to catch file removal exception.
* Fixed another bug in synchronization, this one involving reentrant
  conditions with file synchronization
* If a file open fails due to pickling errors, locks just opened
  are released unconditionally

Release 0.7.3 (06/08/07)
========================

* Beaker was not properly parsing input options to session middleware. Thanks
  to Yannick Gingras and Timothy S for spotting the issue.
* Changed session to only send the cookie header if its a new session and
  save() was called. Also only creates the session file under these 
  conditions.

Release 0.7.2 (05/19/07)
========================

* Added deprecation warning for middleware move, relocated middleware to cache
  and session modules for backwards compatibility.

Release 0.7.1 05/18/07)
=======================

* adjusted synchronization logic to account for Mako/new Cache object's 
  multithreaded usage of Container.

Release 0.7 (05/18/07)
======================

* WARNING: Cleaned up Cache object based on Mako cache object, this changes
  the call interface slightly for creating a Cache object directly. The
  middleware cache object is unaffected from an end-user view. This change
  also avoids duplicate creations of Cache objects.
* Adding database backend and unit tests.
* Added memcached test, fixed memcached namespace arg passing.
* Fixed session and cache tests, still failing syncdict test. Added doctests
  for Cache and Session middleware.
* Cleanup of container/cache/container_test
* Namespaces no longer require a context, removed NamespaceContext?
* Logging in container.py uses logging module
* Cleanup of argument passing, use name **kwargs instead of **params for 
  generic kwargs
* Container classes contain a static create_namespace() method, namespaces are 
  accessed from the ContainerContext? via string name + container class alone
* Implemented (but not yet tested) clear() method on Cache, locates all 
  Namespaces used thus far and clears each one based on its keys() collection
* Fixed Cache.clear() method to actually clear the Cache namespace.
* Updated memcached backend to split servers on ';' for multiple memcached
  backends.
* Merging MyghtyUtils code into Beaker.

Release 0.6.3 (03/18/2007)
==========================

* Added api with customized Session that doesn't require a Myghty request 
  object, just a dict. Updated session to use the new version.
* Removing unicode keys as some dbm backends can't handle unicode keys.
* Adding core files that should've been here.
* More stringent checking for existence of a session.
* Avoid recreating the session object when it's empty.

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✏️ CHANGELOG