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                 <h2>Apache Rivet Release Notes</h2>
                 <p>Apache Rivet current stable version is 3.1.0</p>

 <dl>
     <dt>Rivet 3.1</dt>
     <dd>
         <ul>
             <li>Rivet 3.1.0 is a bug fix release of Rivet 3.0.3. The decision of
         		releasing a new point release has been suggested by the nature of the fix that,
         		even though unlikely, in principle might break existing code developed on
         		wrong assumptions about the behavior of commands
         		<b>::rivet::var_ps</b>

  and <b>::rivet::var_post</b>
             </li>
         </ul>
     </dd>
     <dt>Rivet 3.0 release notes</dt>
     <dd>
         <h4>Rivet 3.0.3</h4>
         <ul>
             <li>Packages in DIO are not assuming anymore the rivet command set has
                             been imported into the global namespace</li>
             <li>A minor change to ::rivet::xml provides a new form to
                             generate self closing elements</li>
         </ul>
         <h4>Rivet 3.0.2</h4>
         <ul>
             <li>Fixed a bug in the default error handler</li>
             <li>Other minor changes only relevant to mod_rivet code and with
  							no interest at the application level (see the Changelog file to know more)
  							</li>
         </ul>
         <h4>Rivet 3.0.1</h4>
         <ul>
             <li>rivet Namespace determination in librivet has been revised to
    							 avoid to check for the module globals and therefore avoiding
    							 the inclusion of mod_rivet.h
    						</li>
             <li>A few details in the worker bridge have been fixed, including
 							a thread root interpreter initialization</li>
             <li>the lazy bridge has been extensively commented</li>
             <li>documentation has been expanded and corrected in various sections</li>
         </ul>
     </dd>
     <dt>Rivet 2.4</dt>
     <dd>
         <h4>Rivet 2.4.0</h4>
         <ul>
             <li>Rivet 2.4.0 is a bug fix release of Rivet 2.3.5. The new point
         				release was done on the same ground of 3.1.0: marking the fact that this version
         				could potentially (though unlikely) create regressions if commands <b>::rivet::var_post</b>


         				and <b>::rivet::var_qs</b>

  are improperly used
         				                            </li>
         </ul>
     </dd>
     <dt>Rivet 2.3</dt>
     <dd>
         <h4>Rivet 2.3.5</h4>
         <p>
 						Rivet 2.3.5 is a bug fix release for rivet 2.3. Rivet 2.3.5 received contributions
 						from Ronnie Brunner and Jeff Lawson
 						<ul>
                 <li>Fixed server initialization procedure. ServerInitScript is now executed only once, the second time
 							the server initialization callback is called</li>
                 <li>Fixed test suite problem with virtual host handling in certain installations</li>
                 <li>Mysql DIO connector now handles also the special value NULL for a column</li>
                 <li>Fixed buffer overflow bug in libWWW</li>
                 <li>Tcl environment now can be loaded also from outside mod_rivet</li>
                 <li>Command <strong>::rivet::redirect</strong>

  now accepts integer status code
 							to control redirection. This enables the command to emit status codes other than
 							301 and 302                                    </li>
             </ul>
         </p>
         <h4>Rivet 2.3.4</h4>
         <p>
             <ul>
                 <li>Fixed buffer allocation size in command <strong>::rivet::escape_sgml_chars</strong>


 							(fixes bug #61353)                                    </li>
                 <li>Random number generator is re-seeded for each interpreter thus to guarantee they
 							will output different sequences</li>
                 <li>package <strong>formbroker</strong>

  now handles also boolean type of data                                    </li>
                 <li>invocation of rivet commands has been fully qualified with the <strong>::rivet</strong>

  namespace                                    </li>
             </ul>
         </p>
         <h4>Rivet 2.3.3</h4>
         <ul>
             <li>DIO: String quoting of the Posgresql connector was incorrect and has been fixed (closes bug #60378)</li>
             <li>
 							New package <strong>formbroker</strong>

 : this package is a form response broker and validator,
 							still experimental but usable
 						                            </li>
             <li>Fixed typo in manual page</li>
             <li>
 							Change in mod_rivet internals: as a content generator mod_rivet has to figure out
 							when a request has to be handled or passed on to other modules.
 							The request type is now determined more correctly from
 							the field <q>header</q>

  of the <strong>request_rec</strong>

  (previosly was
 							<q>content_type</q>

 )
 						                            </li>
         </ul>
         <h4>Rivet 2.3.2</h4>
         <p>
             <ul>
                 <li>The test suite now requires Apache 2.4</li>
                 <li>Commands <strong>::rivet::try</strong>

  and <strong>::rivet::catch</strong>


 								have been fixed. Under some circumstances they failed to properly evaluate
 								the code they are supposed to guard and control                                    </li>
                 <li>A new utility command <strong>::rivet::url_query</strong>


 								composes the query part of an URL from a list of parameter-value pairs                                    </li>
             </ul>
         </p>
         <h4>Rivet 2.3.1</h4>
         <p>
 						Rivet 2.3.1 is a bug fix release for package rivet 2.3. Method 'file' which was
 						to print an HTML5 <pre class="programlisting">&lt;input type="file" name="...."/&gt;</pre>


 						was actually printing an email form field. This problem was not serious but affected any serious
 						development of forms using rivet's form package
 					                    </p>
         <h4>Rivet 2.3.0</h4>
         <p>
                	Rivet 2.3.0 consolidates the 2.2.x module series with several improvements in the way
                   the command export was handled. This will be the last 2.x version series in preparation
                   of the newly developed 3.0 module.
                </p>
         <p>
                   Rivet 2.3.0 introduces the command <b>::rivet::try</b>

  and <b>::rivet::catch</b>


                   as a wrappers of the Tcl core
                   language <b>try</b>

  and <b>catch</b>

  commands. These commands are not exported to
                   the global namespace even when
                   mod_rivet is build with the <i>--enable-rivet-commands-export</i>

  and they should be
                   used within Rivet scripts to protect any <b>::rivet::abort_page</b>

  and
                   <b>::rivet::exit</b>

  execution. These commands interrupt code execution by
                   raising a Tcl error with reserved error codes (respectively ABORTPAGE and EXITPAGE) to
                   signal the module to fire the AbortScript Tcl script with special codes accessible
                   through the <b>::rivet::abort_code</b>

  command
 		   		                     </p>
         <p>
                   Execution of <b>::rivet::try</b>

  fails if mod_rivet is not built with Tcl &gt;= 8.6
                                     </p>
         <p>
                     Command <b>::rivet::exit</b>

  was also introduced to give the command
                     <b>exit</b>

  a more sensible behaviour within the context of the Apache HTTP Web Server.
                     In fact the core command has become an alias of <b>::rivet::exit</b>

  which interrupts
                     the script execution and hands control on to an AbortScript. Then it completes the
                     request and just before returning to the web server framework it terminates the child
                     process by calling <b>Tcl_Exit</b>
         </p>
         <p>
                     This command replaces the <b>exit</b>

  core command and it's provided as a way
                     to give it a meaning within the Rivet and Apache context but the
                     programmer should avoid to use it and instead adopt proper software design
                     to bring about sudden process termination
                                     </p>
     </dd>
 </dl>


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	<title>Apache Rivet Release Notes</title>
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	<body>
	<div id="container">
	<div id="header">
	<h1><a href="../index.html">Rivet</a></h1>
	<h2 id="slogan">Webscripting for Tcl'ers</h2>
	<div class="clear"></div>
	</div>
	<div id="body">
	<div id="content">
	<h2>Apache Rivet Release Notes</h2>
	<p>Apache Rivet current stable version is 3.1.0</p>

	<dl>
	<dt>Rivet 3.1</dt>
	<dd>
	<ul>
	<li>Rivet 3.1.0 is a bug fix release of Rivet 3.0.3. The decision of
	releasing a new point release has been suggested by the nature of the fix that,
	even though unlikely, in principle might break existing code developed on
	wrong assumptions about the behavior of commands
	<b>::rivet::var_ps</b>

	and <b>::rivet::var_post</b>
	</li>
	</ul>
	</dd>
	<dt>Rivet 3.0 release notes</dt>
	<dd>
	<h4>Rivet 3.0.3</h4>
	<ul>
	<li>Packages in DIO are not assuming anymore the rivet command set has
	been imported into the global namespace</li>
	<li>A minor change to ::rivet::xml provides a new form to
	generate self closing elements</li>
	</ul>
	<h4>Rivet 3.0.2</h4>
	<ul>
	<li>Fixed a bug in the default error handler</li>
	<li>Other minor changes only relevant to mod_rivet code and with
	no interest at the application level (see the Changelog file to know more)
	</li>
	</ul>
	<h4>Rivet 3.0.1</h4>
	<ul>
	<li>rivet Namespace determination in librivet has been revised to
	avoid to check for the module globals and therefore avoiding
	the inclusion of mod_rivet.h
	</li>
	<li>A few details in the worker bridge have been fixed, including
	a thread root interpreter initialization</li>
	<li>the lazy bridge has been extensively commented</li>
	<li>documentation has been expanded and corrected in various sections</li>
	</ul>
	</dd>
	<dt>Rivet 2.4</dt>
	<dd>
	<h4>Rivet 2.4.0</h4>
	<ul>
	<li>Rivet 2.4.0 is a bug fix release of Rivet 2.3.5. The new point
	release was done on the same ground of 3.1.0: marking the fact that this version
	could potentially (though unlikely) create regressions if commands <b>::rivet::var_post</b>


	and <b>::rivet::var_qs</b>

	are improperly used
	</li>
	</ul>
	</dd>
	<dt>Rivet 2.3</dt>
	<dd>
	<h4>Rivet 2.3.5</h4>
	<p>
	Rivet 2.3.5 is a bug fix release for rivet 2.3. Rivet 2.3.5 received contributions
	from Ronnie Brunner and Jeff Lawson
	<ul>
	<li>Fixed server initialization procedure. ServerInitScript is now executed only once, the second time
	the server initialization callback is called</li>
	<li>Fixed test suite problem with virtual host handling in certain installations</li>
	<li>Mysql DIO connector now handles also the special value NULL for a column</li>
	<li>Fixed buffer overflow bug in libWWW</li>
	<li>Tcl environment now can be loaded also from outside mod_rivet</li>
	<li>Command <strong>::rivet::redirect</strong>

	now accepts integer status code
	to control redirection. This enables the command to emit status codes other than
	301 and 302 </li>
	</ul>
	</p>
	<h4>Rivet 2.3.4</h4>
	<p>
	<ul>
	<li>Fixed buffer allocation size in command <strong>::rivet::escape_sgml_chars</strong>


	(fixes bug #61353) </li>
	<li>Random number generator is re-seeded for each interpreter thus to guarantee they
	will output different sequences</li>
	<li>package <strong>formbroker</strong>

	now handles also boolean type of data </li>
	<li>invocation of rivet commands has been fully qualified with the <strong>::rivet</strong>

	namespace </li>
	</ul>
	</p>
	<h4>Rivet 2.3.3</h4>
	<ul>
	<li>DIO: String quoting of the Posgresql connector was incorrect and has been fixed (closes bug #60378)</li>
	<li>
	New package <strong>formbroker</strong>

	: this package is a form response broker and validator,
	still experimental but usable
	</li>
	<li>Fixed typo in manual page</li>
	<li>
	Change in mod_rivet internals: as a content generator mod_rivet has to figure out
	when a request has to be handled or passed on to other modules.
	The request type is now determined more correctly from
	the field <q>header</q>

	of the <strong>request_rec</strong>

	(previosly was
	<q>content_type</q>

	)
	</li>
	</ul>
	<h4>Rivet 2.3.2</h4>
	<p>
	<ul>
	<li>The test suite now requires Apache 2.4</li>
	<li>Commands <strong>::rivet::try</strong>

	and <strong>::rivet::catch</strong>


	have been fixed. Under some circumstances they failed to properly evaluate
	the code they are supposed to guard and control </li>
	<li>A new utility command <strong>::rivet::url_query</strong>


	composes the query part of an URL from a list of parameter-value pairs </li>
	</ul>
	</p>
	<h4>Rivet 2.3.1</h4>
	<p>
	Rivet 2.3.1 is a bug fix release for package rivet 2.3. Method 'file' which was
	to print an HTML5 <pre class="programlisting"><input type="file" name="...."/></pre>


	was actually printing an email form field. This problem was not serious but affected any serious
	development of forms using rivet's form package
	</p>
	<h4>Rivet 2.3.0</h4>
	<p>
	Rivet 2.3.0 consolidates the 2.2.x module series with several improvements in the way
	the command export was handled. This will be the last 2.x version series in preparation
	of the newly developed 3.0 module.
	</p>
	<p>
	Rivet 2.3.0 introduces the command <b>::rivet::try</b>

	and <b>::rivet::catch</b>


	as a wrappers of the Tcl core
	language <b>try</b>

	and <b>catch</b>

	commands. These commands are not exported to
	the global namespace even when
	mod_rivet is build with the <i>--enable-rivet-commands-export</i>

	and they should be
	used within Rivet scripts to protect any <b>::rivet::abort_page</b>

	and
	<b>::rivet::exit</b>

	execution. These commands interrupt code execution by
	raising a Tcl error with reserved error codes (respectively ABORTPAGE and EXITPAGE) to
	signal the module to fire the AbortScript Tcl script with special codes accessible
	through the <b>::rivet::abort_code</b>

	command
	</p>
	<p>
	Execution of <b>::rivet::try</b>

	fails if mod_rivet is not built with Tcl >= 8.6
	</p>
	<p>
	Command <b>::rivet::exit</b>

	was also introduced to give the command
	<b>exit</b>

	a more sensible behaviour within the context of the Apache HTTP Web Server.
	In fact the core command has become an alias of <b>::rivet::exit</b>

	which interrupts
	the script execution and hands control on to an AbortScript. Then it completes the
	request and just before returning to the web server framework it terminates the child
	process by calling <b>Tcl_Exit</b>
	</p>
	<p>
	This command replaces the <b>exit</b>

	core command and it's provided as a way
	to give it a meaning within the Rivet and Apache context but the
	programmer should avoid to use it and instead adopt proper software design
	to bring about sudden process termination
	</p>
	</dd>
	</dl>



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