Issues

• TTree::SetBranchAddress does not find friend branch

  bugin:TTree
  root-project/root#23569 · Filter by author vepadulano opened on Oct 1, 2026
  

• bothersome excel file names error in console when using TBrowser

  bugin:Core Libraries
  root-project/root#23559 · Filter by author ethan1987-2 opened on Sep 30, 2026
  10

  

• Multi-threaded RDataFrame::Snapshot writes unreadable baskets (heap-use-after-free in TBasket::CopyTo)

  bugin:RDataFramein:TTree
  root-project/root#23550 · Filter by author theoreticMK opened on Sep 30, 2026
  

• ROOT_PLUGIN_PATH is handled incorrectly

  bugexperiment
  root-project/root#23536 · Filter by author aalkin opened on Sep 29, 2026
  

• [cling] Clang is conditionally invoked with the wrong driver mode depending on the executable's name

  bugin:Cling
  root-project/root#23493 · Filter by author silverweed opened on Sep 25, 2026
  

• [RF] NLL correction factor is constant and evaluated at NLL creation in RooFit

  bugin:RooFit
  root-project/root#23454 · Filter by author ikrommyd opened on Sep 22, 2026
  1

  

• TMath::IsInside() returns wrong results when Int_t is used

  bugin:Math Libraries
  root-project/root#23450 · Filter by author linev opened on Sep 22, 2026
  4

  

• [cling] Unable to find instantiation of declaration with two RFile-related lines of code (the first being invalid)

  bugin:Cling
  root-project/root#23439 · Filter by author silverweed opened on Sep 21, 2026
  1

  

• Extend the information provided by TCling::GetAutoParseClasses

  in:Core Librariesnew feature
  Feature

  root-project/root#23377 · Filter by author pcanal opened on Sep 15, 2026
  

• Add a way to explicitly request the registering a (non-typedef) type alias without requesting the dictionary.

  experimentin:Dictionariesnew feature
  Feature

  root-project/root#23375 · Filter by author pcanal opened on Sep 15, 2026
  1

  

• Re-enable test after backporting LLVM patches

  improvementin:Testing
  root-project/root#23346 · Filter by author vepadulano opened on Sep 11, 2026
  1

  

• [RF] Nested RooSimultaneous double counts extended sub-pdfs

  bugin:RooFit
  root-project/root#23342 · Filter by author stalbrec opened on Sep 11, 2026
  

• [RF] Introduce a first-class RooBinIndex for reusable bin-index computation

  improvementin:RooFit
  root-project/root#23301 · Filter by author cburgard opened on Sep 8, 2026
  3

  

• Switching optimization levels (partially) delayed by one transaction

  bugin:Cling
  root-project/root#23220 · Filter by author hahnjo opened on Sep 1, 2026
  2

  

• RDataFrame in MultiThread with RNTuples

  bugin:RDataFrame
  root-project/root#23136 · Filter by author fraorlnd opened on Aug 24, 2026
  2

  

• PCH does not support class comment (unless a dictionary is requested)

  in:Clingin:I/Onew featurepriority:low
  root-project/root#23132 · Filter by author pcanal opened on Aug 21, 2026
  1

  

• Regression when reading a type spelled via a dependent alias

  bugexperimentin:Clingin:Dictionariespriority:low
  root-project/root#23055 · Filter by author jmcarcell opened on Aug 10, 2026
  4

  

• [RF] RooMultiPdf does not respect extended PDF yields for category sampling

  bugin:RooFit
  root-project/root#22916 · Filter by author stalbrec opened on Jul 24, 2026
  2

  

• I/O regression since 6.36: member-wise reading/writing of a variable-size array in a base class uses the wrong counter offset

  bugexperimentin:I/O
  root-project/root#22895 · Filter by author tamasgal opened on Jul 23, 2026
  4

  

• Add bearer authz to curl-backed files

  in:I/Onew feature
  root-project/root#22881 · Filter by author jblomer opened on Jul 22, 2026
  

• [RF][HS3] Add a new analytic_convolution_dist Streamer/Factory

  in:RooFitnew feature
  root-project/root#22770 · Filter by author Phmonski opened on Jul 7, 2026
  4

  

• Problem with RDataFrame Alias when using . in the alias name.

  bugin:RDataFrame
  root-project/root#22762 · Filter by author jminguezCern opened on Jul 6, 2026
  5

  

• Using joined RDFs: FilterAvailable error on defined column that uses an aliased column and FilterAvailable error on an aliased column.

  bugin:RDataFrame
  root-project/root#22759 · Filter by author modregominguez opened on Jul 6, 2026
  1

  

• Confusing (wrong? buggy?) behavior of sample ranges with chained trees when using dataframes

  bugin:RDataFrame
  root-project/root#22741 · Filter by author acampove opened on Jul 2, 2026
  

• I/O customization rules crash with TClonesArray

  bugexperimentin:I/Oin:TTree
  root-project/root#22725 · Filter by author jblomer opened on Jun 28, 2026
  2