Revision history for Perl extension Chemistry::Ring 0.20 May 10 2009 - Silence some warnings. - Minor changes by Liliana Felix Avila for compatibility with Chemistry::Artificial. 0.19 Mar 29 2005 - Fixed memory leak. - Added 'ring/rings' attribute to molecule on aromatize_mol. 0.18 Aug 12 2004 - Fixed non-deterministic ring order test failure. 0.17 Aug 11 2004 - Fixed bug where find_rings didn't find all the rings in disconnected structures. 0.16 Aug 2 2004 - Make it warnings-clean. - ring/rings attribute added by aromatize_mol 0.15 Jun 30 2004 - Find the "almost SSSR" in the molecule. - Improved aromatize_mol. 0.11 Jun 17 2004 - New subroutine in Chemistry::Ring: aromatize_mol - Added some tests. - Fixed mirror bug in ring_find. - Fixed is_aromatic to use implicit hydrogens. 0.10 Jun 16 2004 - First CPAN release