Current release
Table	No. of records
Genes	1065
Interactions	1335
Pathogens	97
Hosts	76
Diseases	64
References	720

Version 3.1
Table	No. of records
Genes	966
Interactions	1217
Pathogens	98
Hosts	73
Diseases	63
References	672

Version 3.2 December 14th 2009

• New entries
• Bugfixes for some sequence accessions

Version 3.1 April 1st 2008

• Improvements for some entries and sequence downloads

Version 3.0 September 13th 2007

• New entries
• Information on anti-infective tagets
• XML export
• Selective export in FASTA format
• DOIs for direct linkout to publications

Version 2.31 January 25th 2007

• Bugfixes for some sequence accessions

Version 2.3 December 22nd 2006

• New entries: information for some bacterial genes now available
• Links provided for GO and EC databases for most entries
• Searchable GO terms and EC annotations
• Experimental evidence codes are provided in the details page for most entries
• Information on the effect of double gene mutants
• Mapping list PHI-base accessions to EMBL identifiers

Version 2.2 June 2nd 2006

• New entries
• Definition and classification of phenotypes
• Search by phenotype added to 'Advanced Serach' panel
• Support of linkouts to UniProt database
• Missing sequences added to downloadable FASTA files
• Revised format of sequences

Version 2.1 October 3rd 2005

• New entries
• Updated phenotype information for some entries (pre/post penetration)
• Links provided to PubMed for all entries
• Information presented for each individual gene-host interaction
• Abbreviations replaced with full text
• Links provided for GO and EC databases for some entries

Version 2.0 August 22nd 2005

• New web interface
• Direct links to Pubmed
• FASTA downloadable files

Version 1.0 May 4th 2005

• 379 genes
• Experimental host verified and updated for all entries
• Links provided to PubMed for some entries