This release includes bug fixes and key new features.

IMPORTANT! If you are upgrading from a previous version of Information Server and you use the Verity command-line spider, you must re-index your documents. See "Re-indexing Required for Most Upgrades" for complete information.

Filter Improvements

• Four new formats have been added: IBM DCA-RFT vSC23-0758-1, DisplayWrite 4, and FrameMaker MIF up to V5.5.
• Significant work has been done on PDF filtering to make it more reliable.
• Protection against crashes and succumbing to infinite loops during filtering of bad documents has been added, which means that instead of the Verity Spider crashing, the bad document is rejected and spidering continues.

Integration of all Service Pack Features

• For more information on search forms, see Chapter 10 in the SEARCH'97 Information Server User's Guide.
• For more information on the security patch, see "Security Notice" later in these notes, and at the Verity web site (http://www.verity.com).

Updated Documentation

Verity Spider V3.6

IMPORTANT! In order to run the command-line Verity Spider V3.6 under Solaris, you must have the correct operating system patch. For more information, see "Solaris Patch Level" later in these notes.

New Optimization Behavior

Spider Optimization	Optimization Types
Default prior to Spider V3.6	maxmerge, vdbopt, spanword, and ngram
Default for Spider V3.6	maxmerge and vdbopt
Spider V3.6, with the -nooptimize option	vdbopt

The maxmerge, spanword and ngram optimization types can be manually implemented using mkvdk, although only the maxmerge and ngram types are beneficial. The maxmerge type is not available only when you use the -nooptimize option. The spanword type is no longer used for search processing by Information Server. The ngram type is used only when searches include double-ended wild-card searches, such as "*disk*".

For more information on mkvdk and the Verity optimization types, see the Verity Collection Building Guide.

IMPORTANT! If you are upgrading from a previous version of Information Server and you use the Verity command-line spider, you must re-index your documents. See "Re-indexing Required for Most Upgrades" for complete information.

New Options

• -nooptimize
• -reparse
• -refreshtime
• -metafile
• -virtualhost
• -locale

Discontinued Options

• -topicset
• -nodns