Summary of important user-visible changes for releases of the sparsersb package
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sparsersb-1.0.9 Release Date: 2021-09-21
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** Intended to be used with librsb-1.2.0.9 or later.
**  - documented differences with sparse in multiplying sparsersb by sparsersb
**  - documented differences with sparse in summing sparsersb by sparsersb
**  - documented "symmetric" and "hermitian" specifiers
**  - documented "symmetric" and "hermitian" (i,j) access
**  - documented "symmetric" and "hermitian" (:,:) access
**  - fix: conversion from symmetric complex sparsersb won't give hermitian
**  - fix: conversion from diagonal complex sparse shan't give hermitian
**  - fix: compatibility with Octave-6 in sparsersbtg.m
**  - fix: avoid test requiring >1 threads failing on OMP_NUM_THREADS=1
**  - fix: avoid possible segfault crash (heap-use-after-free)
**  - better message when trying to invert matrix with zeroes on diagonal
**  - stricter error propagation when in `make tests'
**  - more error verbosity
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sparsersb-1.0.8 Release Date: 2020-08-06
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** Intended to be used with librsb-1.2.0.9 or later.
**  - fixed '*' giving bad results between real sparsersb and complex scalar
**  - fixed '+' giving bad sum between real sparsersb and complex sparsersb
**  - improved documentation, demos and tests
**  - fix: hermitian sparsersb matrices were being marked with 'U', not 'H'
**  - fix: avoid duplicate vector re-zeroing (so, a bit faster)
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sparsersb-1.0.7 Release Date: 2020-01-07
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**  - fixed '*' operator: 2*sparsersb(...) now returns a sparsersb, not sparse
**  - fixed '*' operation when one operand is real sparsersb and other complex
**  - avoids internal octave API deprecated in 4.4
**  - builds with 4.4 till pre-release 6.0
**  - `make tests' shall fail on sparsersb not matching octave's sparse
**  - implemented elemental transposition by complex: sparsersb.^complex
**  - expand symmetry  when converting sparsersb double  to sparse
**  - expand hermitian when converting sparsersb complex to sparse
**  - 1-D indexing read access is meant to be like in sparse
**  - (:), (:,:), (i,:), (:,j) access support implemented (but not efficient)
**  - internal bug fixes
**  - more test cases (for 'test librsb')
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sparsersb-1.0.6 Release Date: 2018-06-15
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** Intended to be used with the latest librsb-1.2.0.
**  - fix of typo breaking builds (bug # #50764)
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sparsersb-1.0.5 Release Date: 2017-03-29
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** Intended to be used with the latest librsb-1.2.0.
**  - tests won't use quit(): might emit exception according to bug #49271
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sparsersb-1.0.4 Release Date: 2017-03-25
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** Intended to be used with the latest librsb-1.2.0.
**  - test script now uses ilu() instead of obsolete luinc()
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sparsersb-1.0.3 Release Date: 2017-03-24
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** Intended to be used with the latest librsb-1.2.0.
**  - "symmetric" RSB representation supported
**  - improved documentation (including a few typos)
**  - improved demos (demo sparsersb)
**  - improved tests (test sparsersb)
**  - improved error messages
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sparsersb-1.0.2 Release Date: 2016-10-03
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** Intended to be used with the latest librsb-1.2.0.
**  - builds even if octave built with --enable-64, but limited to matrices
**    which would fit when using a normal setup.
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sparsersb-1.0.1 Release Date: 2016-08-01
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** Intended to be used with the latest librsb-1.2.0.
** Changed sparsersb's `configure --help': 
**  - options to build librsb from a tarball (via configure or LIBRSB_TARBALL)
**  - options to use librsb-config
**  - options to override librsb-config
**  - you can override the default C++11 flag
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sparsersb-1.0.0 Release Date: 2015-05-31
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** First Packaged Release. Intended to work with librsb-1.2.
