# Boost Basic Linear Algebra - Release Notes

## Release 1.41.1

### new features

- Move semantics of vector/matrix container assignments have been implemented. They can be enabled by setting BOOST_UBLAS_MOVE_SEMANTICS. More details are on the preprocessor options page.
- Introduce new free functions. See [3449], the new tests in `libs/numeric/ublas/test` and the inline documentation of the files in `boost/numeric/ublas/operation/`.

### bug fixes

- [3293]Fix resizing problem in `identity_matrix`
- [3499]Add DefaultConstructible to concept checks
- [3501]Add inline to free functions in `concepts.hpp`

## Release 1.40.0 and before

- Release notes were not available in this form.

Copyright (©) 2000-2009 Joerg Walter, Mathias Koch, Gunter Winkler
Use, modification and distribution are subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt ).