1# Changes: Development 2 3% STYLE GUIDELINES: 4% * Capitalize sentences 5% * Use imperative, e.g., Add, Improve, Change, etc. 6% * Don't use a period (.) at the end of entries 7% * If multiple sentences are needed, use a period or semicolon to divide sentences, but not at the end of the final sentence 8 9```{rubric} General: 10``` 11 12```{rubric} Configure/Build: 13``` 14 15```{rubric} Sys: 16``` 17 18```{rubric} Event Logging: 19``` 20 21```{rubric} PetscViewer: 22``` 23 24```{rubric} PetscDraw: 25``` 26 27```{rubric} AO: 28``` 29 30```{rubric} IS: 31``` 32 33```{rubric} VecScatter / PetscSF: 34``` 35 36```{rubric} PF: 37``` 38 39```{rubric} Vec: 40``` 41 42```{rubric} PetscSection: 43``` 44 45```{rubric} PetscPartitioner: 46``` 47 48```{rubric} Mat: 49``` 50 51- Add `MatConstantDiagonalGetConstant()` 52 53```{rubric} MatCoarsen: 54``` 55 56```{rubric} PC: 57``` 58 59- Remove `PC_ApplyMultiple` 60 61```{rubric} KSP: 62``` 63 64- Add `MatLMVMGetLastUpdate()` 65- Add `MatLMVMMultAlgorithm`, `MatLMVMSetMultAlgorithm()`, and `MatLMVMGetMultAlgorithm()` 66- Add `MatLMVMSymBroydenGetPhi()` and `MatLMVMSymBroydenSetPhi()` 67- Add `MatLMVMSymBadBroydenGetPsi()` and `MatLMVMSymBadBroydenSetPsi()` 68 69```{rubric} SNES: 70``` 71 72```{rubric} SNESLineSearch: 73``` 74 75```{rubric} TS: 76``` 77 78```{rubric} TAO: 79``` 80 81```{rubric} PetscRegressor: 82``` 83 84- Add new component to support regression and classification machine learning tasks: [](ch_regressor) 85- Add `PetscRegressor` type `PETSCREGRESSORLINEAR` for solving linear regression problems with optional regularization 86 87```{rubric} DM/DA: 88``` 89 90```{rubric} DMSwarm: 91``` 92 93```{rubric} DMPlex: 94``` 95 96- Add `DMPlexGetTransform()`, `DMPlexSetTransform()`, `DMPlexGetSaveTransform()`, and `DMPlexSetSaveTransform()` 97- Add `DMPlexGetCoordinateMap()` and `DMPlexSetCoordinateMap()` 98 99```{rubric} FE/FV: 100``` 101 102```{rubric} DMNetwork: 103``` 104 105```{rubric} DMStag: 106``` 107 108```{rubric} DT: 109``` 110 111```{rubric} Fortran: 112``` 113