2021-04-22 Version 3.00

* SizeType defaults to long int unsigned

* stringToReal supports E uppercase, so that 1E-1 is a
valid number

* IoNg: overwrite allows unlink to fail

* Lanczos and Chebyshev Vectors: swap don't copy

* Matrix::swap now with correct semantics

* IoNg: various additions to the API

2020-12-02 Version 2.76

* Boost serialization headers deleted

* CanonicalExpression: do not throw on empty result
to accomodate scalar algebra

* Matrix::rotate() added

* Matrix::overwrite to hdf5 added

* Ainur: throw corrected, and vector of string added

2020-10-27 Version 2.74

* PsimagLite MPI wrapper, called InterNodeMpi, has been added
(see mailing list for a description)

* LongChain honors IsPeriodicX=1 now

* IoNg::dontPrintDebug() now available,
which stops canary from singing even in debug mode

* CanonicalExpression supports complex scalars now

* InputCheckBase added

* tutorial with Lesson I: testInputNg

* doc.pl supports code sections

* Matrix inverse supports float and complex<float>

* Star geometry with CENTER == 1


2020-07-31 Version 2.72

* GetBraOrKet: R vectors, like in |R0>, etc,
are reserved for internal use

* PsimagLite::atoi better error report

* Warn if Ainur file with inp file extension;
file extensions are still conventions only

* Ainur: bug fix for usecomplex

* isAfloat: bug fix that affected Awesome Predicate

* AinurState.h is no longer a singleton (needed for cincuenta)


2020-03-13 version 2.70

* Matrix expIpi function (Thanks to Jacek)

* Awesome Predicate: settings start with @

* GEMMR (Thanks to Ed)

* Parallelization at nested level

* Ainur: atoi and atof check their arguments now (Thanks to Pontus)

* OneOperatorSpec: better error reporting (Thanks to Bradraj)

* SizeType is uint64_t by default now


2020-01-14 version 2.68

* OstringStream changes done for precision

* PredicateAwesome supports 3 name/value pairs

* Geometry fillAdditionalData deleted

* GeometryBase nullptr means super connections

* CrsMatrix: A cross B added; other improvements

* pthread_exit now called explicitly to help profiling tools

2019-12-09 version 2.66

* GetBraOrKet: Quantum sector before excited level

* LanczosSolver: early exit has new algorithm for excited states

* OneOperatorSpec has generalization

* PredicateAwesome: bug fix and new features

* CrsMatrix: performance improvements by Ed

* Ainur supports complex numbers now

2019-11-08 version 2.64

* libpsimaglite can now be built without HDF5

* GetBraOrKet has new interface

2019-09-23 version 2.62

new drivers

* isBlasThreaded and openBlasConfig

new features and interfaces

* PredicateAwesome supports constants

* Parallelizer2 replaces Parallelizer

* sfinae examples started

2019-08-13 Version 2.60

bug fixes

* Matrix::operator+= : resize if needed

* Ainur: still not working for Complex matrices

performance

* externalProduct now permutes rows and cols on-the-fly

new features

* PredicateAwesome

2019-06-25 Version 2.58

* GetBraOrKet now in PsimagLite

* Geometry LongRange supports Entangler

* InputNg::Writeable can take data in string, and in file

2019-05-20 Version 2.56

* OneOperatorSpec moved to PsimagLite so that Lanczos++ can use it

* Changes needed by YaSpinWave

* PsiScript.pl6 added to execute scripts

* PsiTag now supports append, delete, and strict modes

* PsiTag proposal for modifiers

* Ladder geometry now supports odd legs

* Ladder geometry now honors IsPeriodicX=1

* LongRange geometry now requires GeometryMaxConnections=
(set to 0 if in doubt)

2019-04-02 Version 2.54

Bug fixes:

* ContinuedFractionCollection driver: write fixed

New features:

* InputNg: supports replacements

* ParametersForLanczosSolver: rabbit hole algorithm used now

Refactoring

* basenameOf now available

2019-03-07 Version 2.52

* PthreadsNg compiles on MacOS

* Ainur: better error reporting

* CanonicalExpression no longer needs
default ctor for ResultType

2019-01-31 Version 2.50

* IsEnumClass predicate

* IoNg: read/write enum class

* PsiApp: microarchitecture compile vs. runtime check

* All programs that need PsimagLite must use C++11 now

2019-01-22 Version 2.48

* PthreadsNg: setAffinities with new algorithm

* TridiagonalMatrix.cpp: bug fix in dstedc_

* Svd.h: no fallback on failure; warning printed

2019-01-03 Version 2.46

* C++11 required

* Geometry::AdditionalData is a vector of unsigned ints

* DegreesOfFreedom= creates orbitals per term

* PsiDoc: capture first proto and first function 
with marks inside functions

2018-12-19 Version 2.44

* boost-spirit now needed to compile
(only headers used; the boost runtime is NOT used)

2018-12-10 Version 2.42

New features:

* PsiApp::echoBase64

* PsiApp:;printCmdLine

* PsiTag: PSITAG_CONFIG_USER env variable

2018-10-25 Version 2.40

Bug fixes

* LanczosCore can now handle matrices of rows = cols = 1

New features:

* IoNg: more overwrites possible

Refactoring:

* TimeHandle class

2018-09-27 Version 2.38

* new LanczosSolver by Nirav

* ProgressIndicator prints to milliseconds

2018-09-11 Version 2.36

* IoNgSerializer: bug fix in reading/writing a single boolean

* added test drivers for Lanczos

* MemoryUsage and ProgressIndicator can track time in microseconds

2018-08-30 Version 2.34

* IMPORTANT: BUG FIX in saving and reading booleans with IoNgSerializer

* IoNg::In can return serializer object

* testIoNgBoolean driver added

* DeepCopyOrNot helper class added

2018-08-21 Version 2.32

* Geometry::AdditionalData simplified

* isAntiHermitian available for CRS and Matrix

2018-08-09 Version 2.30

* ConfigBase.psiTag: can override default compiler

* Compiles on a MAC

2018-07-31 Version 2.28

* configure.pl uses PsiTag

2018-07-24 Version 2.26

* PsiTag: recursive behavior

* indexOrMinusOne

* NewMake improvments

* Profiling takes message strings

* Matrix::reset gone, Matrix::resize changed
Matrix ctor added. Thanks to Ed for suggestions

* LanczosVectors changes to matrix allocation

2018-07-12 Version 2.24

* prints GEOMETRY with IoNg

* IoNgSerializer doesGroupExist

* IoNgSerializer ctor can be inside try/catch block

* PsiTag

* new build system

* TypesEqual and IndexOfItem added

* CrsMatrix::conjugate() added

2018-06-28 Version 2.22

* USE_IO_NG deleted, USE_IO_SIMPLE added

* ProgressIndicator::time() added

* IoSimple and IoNg cleanup

* IoNg holds filename and mode

* IoNg improvements

* IoNg: bug fixed in writeVectorEntry

* IoNg: has canary, but can be improved


2018-06-19 Version 2.20

* myApp01.cpp sample PsimagLite app

* IoNg: pairs read/write

2018-05-21 Version 2.18

* IoNg fixes

* USE_IO_NG enabled by default

* compiler switches, supports clang++

* testIoNg compiles

* CRS: sum function for multiple
matrices (Contributed by Ed)

* Profiling class changed

2018-05-08 Version 2.16

* IoNg for bool and std::vector<bool>

* CrsMatrix fullMatrixToCrsMatrix preallocates
memory

* Matrix: svd fallback

* Parallelizer API changes

* PsimagLite manual started

2018-04-24 Version 2.14

* IoNg work

* src/Io/ directory

2018-04-16 Version 2.12

* IoNg work in progress

2018-04-06 Version 2.10

* Honeycomb geometry added
 supports periodicity in x and y
 HoneycombLy must be a multiple of 4

* serialization selection and
  serialization with IoNg

* svd with float

* float compilation

* clang++ compilation

* -Werror not set by default in production
  But please report compilation warnings
  so that they can be corrected

2018-03-22 Version 2.08

* IoNg work in progress

* minimizer test compiles

* Ainur: added test inputs

* DependenciesTest.txt added
  for testing dependencies

2018-02-27 Version 2.06

* CRS: Many improvements suggested by Ed,
  including memory preallocation in many
  functions

2018-02-20 Version 2.04

* make.pl for drivers updated

* IoNg work started

* CRS: unneeded externalProducts commented out

2018-02-08 Version 2.02

* LanczosVectors storage managed internally

* PSI_PUBSETBUF should be set for lustre filesystem
  to disable buffering.

2018-01-25 Version 2.00

* Lanczos Solver reortho now possible

2017-01-03 Version 1.80

* IoSimple: unbuffered output

2017-12-20 Version 1.78

* Nested pthreads example added

2017-11-30 Version 1.76

* LanczosSolver: clean up

2017-11-27 Version 1.74

* LanczosSolver: initialize finalize hooks

2017-11-09 Version 1.72

* Ainur improvements

* clang compilation fix

2017-09-20 Version 1.70

* scripts: perl open with 3 arguments

* Ainur: reads non-complex inputs

2017-08-28 Version 1.68

* Ainur: boost-spirit backend

* USE_BOOST: optional compilation with boost

* deleted gitrev

* rows() and cols() for most matrix types

2017-08-07 Version 1.66

* Matrix class: new ctor, clear and data members

* NO_DEPRECATED_ALLOWED preprocessor flag

* CrsMatrix isZero default optional arg. is 0

* LAPACK: print if not thread safe

* Ainur new input system: very early implementation

* Ainur new input system: hooked up

* IsInputLike and IsOutputLike predicates for EnableIf

* Make.pm: clean target may be appended to

* some "template constraints" added

2017-06-15 Version 1.64

* Domain checks for operator+= in Matrix

* Make.pm, newMake function takes pointer to hash
  as third argument

2017-06-08 Version 1.62

* faster isZero function for CrsMatrix

* transpose of Matrix added (without conjugate)
 
2017-05-25 Version 1.60

* Lanczos: saves LanczosVectors by the default
    
    Internally lotaMemory=true is the default
    prefix + NoSaveLanczosVectors=1
    should be used to have Lanczos not save vectors

* svd: complex version and optimal lwork

2017-05-18 version 1.58

* PTHREAD_ASSIGN_AFFINITIES removed, now a runtime option

* LanczosSolver: checks for success of memory alloc.

* svd implementation now in Matrix.cpp

2017-05-11 version 1.56

* PthreadsNg: LoadBalancerDefault assigns largest weight first

* err function added

2017-05-04 Version 1.54

* JSON Library removed

* PsiApp class added

* Make.pm takes path

* log2Integer function added

* LAPACK algorithm for lwork changed

2017-04-24 Version 1.52

* Geometry: Ladder: Reads IsPeriodicX/Y

* Makefile: -lblas -llapack

* Matrices: rows() cols() interface

