Version	v12r8
Release Date	9 March 2005
Description	Backward-compatible version released in parallel with v13r0. Includes packages are the same wherever possible. Based on Gaudi v15r5 and LHCb v16r4. Includes LoKi v3r9.
Main modifications	Main Modifications:  The L1 memory leak has been fixed   But there is still a memory leak in L0Muon. To avoid this, L0Muon is not run anymore in L0.opts. !WARNING! This will make you use the old obsolete muon trigger result stored on the DST. So either you get the old L0Muon or you live with a 20kB memory leak.   There are some changes in Physics tools:  The ICheckOverlap tool has been completely revised. It now accepts const inputs. The missing single-particle method has been added. Another new method removeOverlap( ParticleVector& ) removes particles with overlap (i.e. typically a B where twice the same track has been used) for the vector. A new OverlapFilterCriterion applies the CheckOverlap tool in a filter.   The stripping now overrides all ExclusiveSelection = true and contains a new "trigger" preselection.
CLHEP issues	See v13r0 page.
Known problems:	Troubles with RFIO: See v12r7 page.
	If your execution hangs after the DaVinci welcome-banner on slc3, it means you have made a typo in the name of some option file you are including, or you are using an undefined environment variable. There's no straightforward way to debug this.
Documentation	Doxygen
	Release notes (for detailed release notes of each packages look in the release area)
	Requirements
Installation	follow the LHCb installation procedure
	tar files of the sources
	web access to CVS repository
	web access to AFS release area
DaVinci packages modified with respect to previous release	DaVinciSys v12r8   Calo/ No changes Event/ No changes Hlt/ HltGeneric v2r2 Added muon and dimuon lines HltSelections v2r2 Use CheckOverlap, use fast tools. HltSelChecker v2r2 Fix for windows. L0/ No changes Muon/ No changes Phys/ DaVinci v12r8   DaVinciEff v3r2p1 Change to m_allTrueDoIs (true) DaVinciFilter v1r6 New OverlapFilterCriterion DaVinciKernel v3r2 Several small changes DaVinciTest v5r6 Minor changes DaVinciTools v11r6 ChangeOverlap modified DaVinciTransporter v2r0p1 Prepare for CLHEP 1.9 FlavourTagging v5r5 Revision VertexFit v1r4 New fast fitters for HLT PhysSel/ PhysSelSys v7r16 New Trigger selection for MB stripping Bd2D0Kstar v4r3p2 TriggerSel v1r0 Rec/ No changes Rich/ No changes Tools/ LoKiHlt v2r1 CLHEP Stripping v1r7 ExclusiveSelection = false for all preselections Utilities v1r14 Cosmetic changes Tr/ No changes Trg/ TrgSys v1r4 L1Decision v4r3 CLHEP TrgPrimVertex v5r0p1 Bug fix TrgTools v6r3 Correct memory leak
LHCb  packages used	LHCb v16r4 (refer to the requirements files for full package list and corresponding release notes for details)
Gaudi packages used	based on Gaudi v15r5.