Log Message:
Update to 4.20:

4.20 - Monday, December 4, 2006

    * INTERNAL: No Changes since 4.20_1. Declaring stable.

4.20_1 - Friday, November 24, 2006

    * FIX: -ip_match now works even when it's not the last import item. (RT#21779)
    * FIX: In the PostgreSQL driver, a race condition is when storing is now \ 
worked around. (Mark Stosberg)
    * FIX: Added important clarification and example to MySQL driver docs that \ 
the session column
           needs to be defined as a primary key to avoid duplicate sessions. \ 
(Justin Simoni, Mark Stosberg)
    * FIX: The default serializer now works correctly with certain data \ 
structures. (RT#?) (Matt LeBlanc)
    * FIX: A documentation bug in find() was fixed (Matt LeBlanc)
    * FIX: Documented how to declare a database handle to be used on demand, \ 
which was introduced
           in 4.04. (Mark Stosberg)
    * FIX: Connections made with SQLite now disconnect only when appropriate, \ 
instead of always.
           This addresses a symptom seen as "attempt to prepare on inactive \ 
database handle"
           (Jaldhar Vyas, Sherzod, Mark Stosberg)
    * FIX: Args to the constructor for CGI::Session and the drivers are now \ 
always shallow
           copied rather than used directly, to prevent modification.
           (RT#21952, Franck Porcher, Sherzod, Mark Stosberg)
    * FIX: The documentation for expire($param, $time) was made more explicit
           (pjf, Mark Stosberg)
    * NEW: Added recommended use of flush() to the Synopsis (Michael Renner, \ 
RT#22333)
    * NEW: Added links to Japanese translations of the documentation (Makio \ 
Tsukamoto)
           http://digit.que.ne.jp/work/index.cgi?Perldoc/ja
    * INTERNAL: Update test to workaround YAML versions less than 0.58. (Matt \ 
LeBlanc)
    * INTERNAL: param() code was refactored for clarity (Mark Stosberg, Ali \ 
ISIK, RT#21782)
    * INTERNAL: new() and load() were refactored (Ali Isik)
    * INTERNAL: renamed some environment variables used for testing (Ron Savage)
    * INTERNAL: Multi key-value syntax of param() now always returns number of keys
      successfully processed, 0 if no key/values were processed.

4.14 - Sunday, June 11, 2006

    * NEW: The find() command now has better documentation. (Ron Savage, Matt \ 
LeBlanc)
    * FIX: find() no longer changes the access or modified times (RT#18442) \ 
(Matt LeBlanc)
    * FIX: param() called with two parameters now returns the value set, if any \ 
(RT#18912) (Matt LeBlanc)
    * FIX: driver, serializer, and id generator names are now untainted \ 
(RT#18873) (Matt LeBlanc)
    * INTERNAL: automatic flushing has been documented to be unreliable, although
      it was recommended in the past. Automatic flushing can be affected adversely
      in persistent environments and in some cases by third party software. There are
      also some cases in which flushing happened automatically in 3.x, but quit \ 
working
      with 4.x. See these tickets for details.

       http://rt.cpan.org/Ticket/Display.html?id=17541
       http://rt.cpan.org/Ticket/Display.html?id=17299

4.13 - Wednesday, April 12, 2006

    * FIX: Applied patch to fix cookie method (RT#18493,Nobuaki ITO)
    * FIX: Berkeley DB 1.x exhibits a bug when used in conjunction with \ 
O_NOFOLLOW. Because of this,
      we've removed it from the db_file driver. It will still attempt to stop \ 
symlinks but the
      open itself has dropped the flag. (Matt LeBlanc)
    * FIX: json and yaml db_file tests now check for the presence of DB_File. \ 
(Matt LeBlanc)

4.12 - Friday, April 7, 2006

    * SECURITY: Fix possible SQL injection attack. (RT#18578, DMUEY)

4.11 - Friday, March 31, 2006

    * FIX: Since 4.10, using name() as a class method was broken. This has
      been fixed, and regression tests for both uses have been added. (Matt LeBlanc)

4.10 - Tuesday, March 28, 2006

    * SECURITY: Hopefully this settles all of the problems with symlinks. Both \ 
the file
      and db_file drivers now use O_NOFOLLOW with open when the file should exist and
      O_EXCL|O_CREAT when creating the file. Tests added for symlinks. (Matt LeBlanc)
    * SECURITY: sqlite driver no longer attempts to use /tmp/sessions.sqlt when no
      Handle or DataSource is specified. This was a mistake from a security \ 
standpoint
      as anyone on the machine would then be able to create and therefore insert data
      into your sessions. (Matt LeBlanc)
    * NEW: name is now an instance method (RT#17979) (Matt LeBlanc)

4.09 - Friday, March 16th, 2006

    * SECURITY: Applying security patch from: \ 
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=356555 (Julien Danjou)

4.08 - Thursday, March 15th, 2006

    * FIX: DESTROY was sometimes wiping out exception handling. RT#18183, Matt \ 
LeBlanc.
    * SECURITY: Resolve some issues in: \ 
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=356555
      - db_file and file now check for symlinks either explicitly or by using \ 
O_EXCL on sysopen
      - file creation umask defaults to 660
    * NEW: db_file and file drivers now accepts a UMask option. (Matt LeBlanc)
    * INTERNAL: test suite clean up (Tyler MacDonald)