**History of the TWiki Implementation (version TWiki-4.1.2, Sat, 03 Mar 2007, build 13046)**
+- [[PeterThoeny]] - 01 Jun 2001: New `%URLPARAM{"name"}%` variable to query URL parameters. More in [[TWikiVariables]].
+- [[PeterThoeny]] - 27 Mar 2001: The table syntax has been enhanced to (i) render <code>**| \*bold\* |**</code> cells as table headers, (ii) render space padded cells <code>**| center aligned |**</code> and <code>**| right aligned |**</code>, (iii) span multiple columns using <code>**| empty cells |||**</code>. More in [[TextFormattingRules]].
+- [[PeterThoeny]] - 25 Mar 2001: Security fix: Questionable files like PHP scripts (executables) and <code>**.htaccess**</code> files that are attached to a topic get a <code>**.txt**</code> suffix appended to the file name. See also [TWiki:Codev.FileAttachmentFilterSecurityAlert](http://TWiki.org/cgi-bin/view/Codev/FileAttachmentFilterSecurityAlert)
- [[AndreaSterbini]], [[PeterThoeny]] - 28 Feb 2001: New Wiki rule for headings, i.e. `---++ My Title`; and new `%TOC%` variable to build a table of content from headings in a topic. More in [[TWikiVariables]].
- [[PeterThoeny]] - 28 Feb 2001: New Wiki rule to specify arbitrary text for external links (i.e. `[[http://TWki.org][TWiki]]`) and internal links (i.e `[[WikiSyntax][syntax]]`). More in [[TWikiVariables]].
- [[PeterThoeny]] - 28 Feb 2001: New Wiki rule for named anchors, e.g. links within a topic. Define a named anchor with `#MyAnchor` at the beginning of a line, and link to it with `[[#MyAnchor]]`. More in [[TWikiVariables]].