ROOT Version v5-26-00 Patch Release Notes
A new production version ROOT v5-26-00g has been released September 29, 2011.
Binary tar balls are not available for patch releases.
The AFS version of v5-26-00g for many different platforms and compilers can be found at:
/afs/cern.ch/sw/lcg/app/releases/ROOT/5.26.00g/ 
The complete source tree for all systems (23.5 MB) is available here:
 ftp://root.cern/root/root_v5.26.00g.source.tar.gz 
Alternatively get the source from Subversion (broken) using:
 svn co http://root.cern/svn/root/tags/v5-26-00g root 
After obtaining the source read the file README/INSTALL (in short just do: cd root; ./configure; make).
To get the source of the head of the v5-26-00-patches branch do:
 svn co http://root.cern/svn/root/branches/v5-26-00-patches root 
Changes in the head of the v5-26-00-patches branch
- configure
	
- Import patches to support smooth configuration on Ubuntu 11.04 or newer (automatic detection of the new location of the system libraries)
 
 - Proof
	
- Import patches #41393 and #41399 fixing possible issues with PATH and LD_LIBRARY_PATH settings for proofserv.
 - Adapt patch #39078 to bypass a compilation problem with gcc 4.5.2 on linux.
 
 
Changes in version v5-26-00g (September 29, 2011)
- Core
	
- Allow home directory to be specified via HOME shell var in case there is no correct passwd file entry, fixes issue 83268
 
 - xrootd
	
- Backport in xrootd of this fix for ATLAS.
 
 
Changes in version v5-26-00f (June 21, 2011)
- IO
	
- Avoid spurious warning message when reading file with a TTree written with ROOT 5.29/03 or later:
Warning in <tstreamerinfo::compile>: Counter fNClusterRange should not be skipped from class TTree</tstreamerinfo::compile> 
 - Avoid spurious warning message when reading file with a TTree written with ROOT 5.29/03 or later:
 - Proof
	
- In TProofPlayerRemote::IsClient, import fix #36440 adding a missing protection to fix a crash in submerger mode when the output list contained TProofOutputFile objects.
 - In TProof, import fix #35965 to correctly update the number of submergers when workers die (it should fix an issue experienced by ALICE).
 
 - Hist
 - Xrootd
	
- In XrdSecProtocolkrb5, fix possible source of infinite loop during token init (backport from the Xroot head).
 - In XrdClientConn, fix possible source of infinite loop during the authentication phase (includes check on the tty; backport from the Xroot head)
 
 
Changes in version v5-26-00e (Oct 13, 2010)
- Cint
	
- When generating code for the typedef within a class, make sure to treat bool as a built-in.
 - Avoid a segmentation fault when parsing a class with virtual inheritance and a using declaration.
 - genreflex: fix for functions taking a template with an array template parameter (r35203, bug #71800).
 - Properly set the class version for ClassDef()'ed classes with a Reflex dictionary (r35514, r35515; bug #72749).
 
 - Tree
	
- Prevent the use of an optimized StreamerInfo when reading a collection streamed member wise. The solves the issue 73642 reported in Atlas' Savannah.
 - Fix TTree::Draw's problem with STL container accessed via a function (See bug #72398)
 
 - Net
	
- In TFileStager::IsStaged, Import fix #32312: always close files after testing.
 
 - Proof
	
- Fix out-of-bounds buffer access in RecvLogFile().
 
 - Math
	
- Fix a problem in both Minuit2Minimizer and TMInuitMinimizer when re-defining a parameter (see ROOT Forum post 9947).
 
 
Changes in version v5-26-00d (Aug 24, 2010)
- Cint 
	
- Enable genreflex selection of free-standing operators (r34616 r34639, bug #70660)
 - Correctly handle C++-style comments in multi-line input. (r34746, bug #71186)
 - Fix reset of value reference after parameter conversion (r34763).
 
 - IO
	
- Add a protection when reading a file that contains a collection streamed memberwise .. but the collection was always empty.
 
 - Proof
 
Changes in version v5-26-00c (Jul 6, 2010)
- Core
	
- Restore and improve time required to startup root.exe and load shared libraries.
 - Improve configure's -fPIC detection for static libraries (r32354).
 - Support of version detection for non-English Microsoft Compilers (r32434, bug #63411).
 TString::operator+=(double)had an insufficient precision (r32435, bug #62965).- Fix terminal interaction of ROOT started in the background (r32638).
 - Fixes in TRefArray for issues: [Bad link], [Bad link], [Bad link].
 - Fix warning issued by VC9 in TTimeStamp.h, fixes issue: [Bad link].
 - Do not skip the first line when reading a root history file ([Bad link]).
 - If the process is not attached to a tty or if it is in the background, do not ask the (absent) user if the process should be prevented from exiting in case of error ([Bad link])
 - Improve's ACLiC handling of include directive (in particular add support for directory named "something-ICC" (r32784 r32873)
 - Fix the ACLiC .d file by using the build directory in the target part (rather than the source directory) ([Bad link])
 - In ACLiC's dependency files (.d) make sure to only use the unix notation (on windows) ([Bad link])
 - Fix ACLiC's .d file dictionary version part ([Bad link])
 - Make the error message of TClonesArray::SetClass(const char*) more specific. ([Bad link])
 - Editline now allows FILE* based I/O on stdin if it's not a tty (Savannah #67484, r33561).
 - In TClassTable, normalize 'long long' to 'Long64_t' in lookups as we are already doing on input (Savannah #66312, r34038).
 - Add protection in TUnixSystem::StackTrace() in case gApplication is 0 ([Bad link]).
 - Add missing entry for gsidcap protocol in P020_TDCacheSystem.C plugin macro ([Bad link]).
 
 - I/O
	
- Added support for reading file written by 5.27/02 and containing a data member like: 
std::container *fDataObjects;which has been streamed member-wise (see revision r33173 of the trunk). - Avoid spurious warning message when reading file produced by ROOT v5.27 and above.
 - Properly handle the case where a read rule is associate with the 'current' TStreamerInfo when this TStreamerInfo is used for writing.
 - If the process is not attached to a tty or if it is in the background, do not ask the (absent) user if the process should be prevented from exiting in case of error ([Bad link])
 - Improve's ACLiC handling of include directive (in particular add support for directory named "something-ICC" (r32784 r32873)
 - Fix the ACLiC .d file by using the build directory in the target part (rather than the source directory) ([Bad link])
 - In ACLiC's dependency files (.d) make sure to only use the unix notation (on windows) ([Bad link])
 - Fix ACLiC's .d file dictionary version part ([Bad link])
 - Make the error message of TClonesArray::SetClass(const char*) more specific. ([Bad link])
 
 - Added support for reading file written by 5.27/02 and containing a data member like: 
 - Meta/Cint
	
- Prevent the automatic dictionary's name from containing colon characters (r32383).
 - Add dictionary for 
vector<pair<int, int> >used inTSchemaRule(r32476, bug #53130). - Prevent object related to TClass and CINT from being allocated inside a TMapFile.
 - Fix the handling of function pointer types in TCint (r33121).
 - Fix out of string range access error in TClassEdit ([Bad link]).
 - Avoid reading before the start of an empty string in TClassEdit.cxx ([Bad link])
 - Add one more valgrind suppression about TClassRef ([Bad link]).
 - Add missing protection against creation of CINT and Meta objects during a TMapFile streaming ([Bad link])
 - Remove fixed length array in TCint.cxx ([Bad link])
 - Avoid problem case where TROOT::LoadClass is being called with a string that is changed/deleted during its execution (by an autoload for example). This fixes the problem seen in the forum topic [Bad link] ([Bad link])
 
 - Cint
	
- PyCintex now uses RuntimeError instead of string exception (r32422, bug #63328)
 - In genreflex, fix suppression of array-bounds warning with GCC (r32433, bug #63267).
 - Improve detection of character set to not swallow some non-ASCII7 characters (r32445).
 - Fix crashes in function invocations through Cintex on Windows with debug runtime (r32634).
 - Work around an issue with calling virtual destructors in bases on Windows (r32635).
 - Don't generate collection proxy for Windows iterators (r32637).
 - Fix uninitialized members reported by Coverity (r32639, r32640, r32641).
 - Avoid using colons in the AutoDict file names ([Bad link]).
 - Replace a crash by an error message in the case where stdout or stderr is already redirect when a redirection is asked for ( r32416).
 - properly reset G__value::reftype.reftype when needed in the bytecode engine ([Bad link])
 - Do not cause an overflow signal just because we cast the result of line processing to a long. Set it to LONG_MAX/MIN instead. ([Bad link]).
 - In shift operators, do not always promote to long, stop at int first. ([Bad link])
 - Fix the cases where the wrong function's parameter was being reset ([Bad link])
 - Fix random memory read in G__cattemplatearg by avoid to use a pointer into memory that might be moved ([Bad link])
 - Try to load explicitly ./filename but filename as the earlier is more friendly to dlopen ([Bad link])
 - make sure we are loading the dictionary information about member function before looking for a template member function instance. This fixes the report [Bad link] in Savannah.([Bad link])
 - Make sure to autoload a class before allocating any object of that type ([Bad link])
 - Properly parse typedef long long* pointer when there is more than one space between the star and the typedef name. Generate the dictionary for vector < long long > and vector < unsigned long long > ([Bad link])
 - Make sure the list of library is recalculated whenever G__smart_unload is used; This fixes Savannah [Bad link] ([Bad link])
 - Avoid premature deletion of objects used as the default parameter of an interpreted function.
 - Fix a crash caused by a misplaced semicolon (issue #68454, r33860)
 - Avoid a crash when interpreting an (illegal) call to a non-static member function without an object
 
 - TTree
	
- Prevent DropBaskets from dropping baskets that are not stored individually (and hence potentially not recoverable).
 - Fix a lookup problem resulting a TTree::Draw not finding the data in some (complex) case of object nesting.
 - Do not core dump when called with an empty chain. Show the branches of a chain's underlying's tree's friend in addition to the branches of the chain and of the chain's friends ([Bad link]).
 - Add missing re-initialization in TBranchProxy (part of TTree::MakeProxy) ([Bad link]).
 - When drawing a polymarker make Same is the same as same ([Bad link])
 - Fix a couple of internal memory leaks ([Bad link])
 - Properly re-update the friend branch address when the friend is a chain composed of 'smaller' trees than the main chain is. This fixes savannah [Bad link] ([Bad link])
 - Improve the error message(s) issued by TTree::Show in case of failure to load the data ([Bad link])
 - Add missing protection in the case we have an embedded object in a split branch which has been 'removed' from the current schema ([Bad link])
 - Do no use any array dimension in the branchnames created by TTree::ReadFile ([Bad link])
 - In TTree::Draw: Avoid confusing '2000 < var' with in a file name '2000' (due to IsFileInIncludePath stripping what it thinks to be an I/O indirection) ([Bad link])
 - In TChain::SetEntryList use only the treename to lookup the (sub)entryList (instead subdir/treename) ([Bad link])
 - Do no over-write the default value for TTree::fgMaxTreeSize as it is the one we want (and the setting smaller than expected by a factor 10) ([Bad link])
 - Add missing protection in the case we have an embedded object in a split branch which has been 'removed' from the current schema ([Bad link])
 - Make sure that gPerfStats is properly updated if the TTreePerfStats is deleted ([Bad link])
 - Properly detect all ACLiC modes in TSelector::GetSelector ([Bad link])
 - Update TTree::SetDirectory to allow update the BranchRef when needed. This fixes the forum topic [Bad link] ([Bad link])
 - Avoid attempting to print the content of empty TClonesArray even if this 'content' are strings (see roottest/root/treeformula/scan/execmissingString.C) ([Bad link])
 
 - Hist
 - Proof
	
- In XrdProofdAdmin, import fix #32808: fix bug preventing a correct check of the exported paths
 - In TProofServ, import fix #32812 and #32814: fix bug affecting the behaviour of kBuildPackage for packages in the global directories
 - In TXProofMgr, import fix #32815: disable TXSocket handling while sending / receiving files; this fixes occasional freeze in TXProofMgr::GetFile / TXProofMgr::PutFile due to a screw up of the synchronization in the TXSocket pipe
 - In TProofMgr, import fix #32874: avoid contacting the DNS when initializing TProofMgr as base class of TProofMgrLite: it is not needed and it may introduce long startup delays
 - In TProof, import fix #32833: fix a problem counting valid nodes in sequential or 'masteronly' mode, generating the fake error message "GoParallel: attaching to candidate!"
 - In TProofLite, import changes (#32897, #32898 and #32900) to fix a problem with the unix sock path length affecting MacOS X
 - In XrdProofdManager, XrdProofdProofServMgr import fix #32953 to fix a problem with the unix sock path length affecting MacOS X
 - In XrdProofdProofServMgr import fix #33003 to fix a problem with open file descriptors potentially showing up in the case of very fast daemon restarts (and many users).
 - In TProofServ import fix #33009: in Reset(), check that the directory make sense; fixes an issue with a fake error message in PROOF-Lite when issuing TProof::SetParallel().
 - In TProofPlayerLite import fix #33015: properly initialize the merging progress counter; fixes problem with negative values for 'workers still sending' in PROOF-Lite .
 - In TProofLite import fixes #33027 and #33035: fix possible segvs when processing a dataset where none of the files had been validated and/or when starting a query right after.
 - In TProof import fix #33153: fix an issue with the parsing of the option field when forcing the creation of a new session, e.g. TProof::Open("<master>/?N") .
 - In TProofServ import fix #33418: make sure that information used internally in the option field on the master (about the aclic option) is not sent to workers while issuing the Process message.
 - In TXProofMgr import fix #33639: fix problem affecting TProofMgr::Find.
 - Import fix #33640: fix a few issues affecting the usage of tree friends in PROOF and a bug affecting the locality check for files in TDSet.
 - In TProof::ClearData() import fix #33641: fix problem observed when the dataset repository is empty
 - In TProof import fix #33648: fix an issue with the workers names in TSlaveInfo in PROOF-Lite .
 - In TPacketizerAdaptive and TPacketizer, import part of fix #33781: fix a subtle bug affecting the (possibly rare) case when not all entries are required and # entries does not correspond to an complete subset of files (e.g. # entries = 1001000 with files of 100000 entries each).
 
 - Xrootd
	
- Import fixes to build on MacOS X 10.4 (#32679, #32680, #32683, #32707)
 - Import fixes #32800:
		
- Tiny fix in XrdSecProtocolkrb5.cc (remove a redundant unlock)
 - Improvements in 'xrdgsiproxy':
			
- Add support for -exists (-e) switch for the 'info' mode (as in 'grid-proxy-info') to test existence and validity of a proxy.
 - Add also support for a clock skew in testing validity (default 30 secs; can be changed with the switch -clockskew).
 
 
 - Import fixes #33677 fixing a fake authentication failure with proxies created by voms-proxy-init when the input certificates are PKCS12-formatted
 
 - GUI
	
- Fix double deletion in TGFileBrowser (r32684, bug #64596)
 - Fix crash in TBrowser when looking for an icon associated with a class for which TClass::GetClass(class_name) was returning 0 (r32516, bug #64082)
 
 - RooStats
	
- Fix a minor bug in HybridPlot::Draw (bug #64854)
 
 - PyROOT
	
- Fix issue #70229
 
 
Changes in version v5-26-00b (Feb 9, 2010)
- Core
	
- Editline: allow cooked terminal interaction after creation of TRint (r32170, bug #62119)
 
 - I/O
	
- TDCacheFile: fix regression which caused dcap://host:port/path to fail.
 - Added TXMLEngine::ParseString.
 
 - Net
	
- TGrid::Mkdir() and TAlien::Mkdir() return now an Int_t instead of a Bool_t. Patch is needed for the ALICE ODBC.
 
 - CINT
	
- Improve heap efficiency of function calls through Cintex. (r32081, r32088)
 - Work around warning "cast from pointer-to-function and pointer to object" in some Reflex dictionaries. (r32074 r32085, bug #61758)
 
 - Proof
	
- Import patch #32237 to fix a problem occurring when submergers cannot open the required sockets (output was not always sent to the master).
 
 - Xrootd
	
- New version (v20100205-0000) containing a crucial fix on the server side required by ALICE. This version also includes the new SSL module for authentication needed by Castor.
 - Import crucial fix #32322 on for the krb5 security module.
 
 - TMVA
	
- Method ReadStateFromStream() made public again: accommodate reading of weights from 'in memory' text-weightfiles.
 - Method ReadStateFromXMLString() added: accommodate reading of weights from 'in memory' xml-weightfiles.
 - MethodLikelihood: fix bug that prevented saving of method specific histograms.
 - Remove global pointer access from inline functions.
 - Import fix #32302 for the missing external symbol problem for PDF::IGetVal
 
 
Changes in version v5-26-00a (Jan 19, 2010)
- Core
	
- Hide editline's symbols to prevent clashes with readline (r31990, Forum post 41352).
 - Fix in rootcint when using the -p option ([Bad link]).
 
 - CINT
	
- Fix function invocations through Cintex in non-optimized builds (r31991).
 - For Cintex wrappers, respect NX bit also on MacOS X (r32009, #61225).
 
 - Hist
	
- Fix a bug in TGraph::Eval when evaluating at the graph point values.
 - Fix a bug in TH3::Project3D when using on 2 3d histograms with same name (fix #61464)
 
 - Tree
	
- Protect TTree::OptimizeBaskets() in case of very high compression factors (> 100). TTree::Fill now calls TTree::OptimizeBaskets() with the fAutoFlush value instead of the total number of bytes written so far.
 - In the TTreeViewer, show the branches of a chain's underlying's tree's friend in addition to the branches of the chain and of the chain's friends.
 
 - Graf
	
- TLatex: revert http://root.cern/viewvc?view=rev&revision=29285 this fix had side effects. Indexes on Greek characters did not work.
 
 - Proof
	
- Fix memory leaks in TProofServ::HandleProcess and TEventIterTree (fix #31946)
 - Fix double deletion in TProofServ::HandleSubMerger and memory leak in TEventIterUnit (fix #32003)
 - Fix a problem with real-time notification during dataset verification (fix #32031)
 - XrdProofd plugin (fixes #31934, #31935 and #31937):
		
- Fix an issue with return codes of sending methods preventing a proper detection of failures by masters and/or clients
 - Fix an issue with the garbage collection of inter-daemon connections
 - Reduce the locked phase during inter-daemon broadcasting
 
 
 - Math
	
- Fix a bug in the multinomial random generation ( ROOT::Math::Random::Multinomial ).
 
 - PyROOT
	
- Fix #59945 and #61105.
 - Properly handle the extra thread created in PyROOT to process events (r31983 and r31996, Forum post 9640 and 7748).