1# Release Notes 2 3All notable changes to [Boost.GIL](https://github.com/boostorg/gil/) project will be documented in this file. 4The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/). 5 6## [1.74.0] - 2020-08-12 7 8### Added 9- Added new constructor initializing `any_image` from r-value reference to any image ([PR #486](https://github.com/boostorg/gil/pull/486)) 10- Implemented mechanism to reverse `kernel_2d` ([PR #489](https://github.com/boostorg/gil/pull/489)) 11 12### Changed 13- BREAKING: Replace Boost.Variant with Boost.Variant2 ([PR #474](https://github.com/boostorg/gil/pull/474)) which completes removal on uses of Boost.MPL (missing from Boost 1.72.0 change added [PR #274](https://github.com/boostorg/gil/pull/274)). 14- Use perfect forwarding from apply_operation to visit ([PR #491](https://github.com/boostorg/gil/pull/491)) 15 16### Removed 17- BREAKING: Removed dependency on Boost.Variant 18 19### Fixed 20- Fixed invalid conversion from RGB8 to CMYK32 due to overflow ([PR #470](https://github.com/boostorg/gil/pull/470)) 21- Fixed `image` constructor from other image ([PR #477](https://github.com/boostorg/gil/pull/477)) 22- Fixed error `plane_view_t` is not a class or namespace name ([PR #481](https://github.com/boostorg/gil/pull/481)) 23- Fixed `interleaved_view` factory using `point<std::ptrdiff_t>` for dimension ([PR #487](https://github.com/boostorg/gil/pull/487)) 24- Fixed documentation replacing uses MPL with MP11 in tutorial ([PR #494](https://github.com/boostorg/gil/pull/494)) 25- Fixed missing header in `numeric/kernel.hpp` to make it self-contained ([PR #502](https://github.com/boostorg/gil/pull/502)) 26 27### Acknowledgements 28 29Samuel Debionne, Pranam Lashkari, Mateusz Loskot, Debabrata Mandal 30 31## [1.73.0] - 2020-04-22 32 33### Added 34- Added move constructor and move assignment operator to `image` class ([PR #457](https://github.com/boostorg/gil/pull/457)). 35- New member function `size()` in `any_image_view` class ([PR #456](https://github.com/boostorg/gil/pull/456)). 36- Numerous new test cases for existing features. 37 38### Changed 39- Replace Boost.Test with Boost.LightweightTest as the only test framework used in GIL ([PR #459](https://github.com/boostorg/gil/pull/459) and [PR #464](https://github.com/boostorg/gil/pull/464)). This also restructured the `test/extension/io/` sub-tree and targets in related `Jamfile`-s. 40- Removed remaining uses of Boost.MPL ([PR #441](https://github.com/boostorg/gil/pull/441). 41- Renamed all macros using `BOOST_GIL_` prefix ([PR #411](https://github.com/boostorg/gil/pull/411)). 42- Renamed all CMake configuration options using `BOOST_GIL_` prefix ([PR #419](https://github.com/boostorg/gil/pull/419)). 43 44### Removed 45- Removed `extension/dynamic_image/reduce.hpp` as unused and possibly unfinished ([PR #466](https://github.com/boostorg/gil/pull/466)). An implementation attempt of techniques described in the paper [Efficient Run-Time Dispatching in Generic Programming with Minimal Code Bloat](http://lubomir.org/academic/MinimizingCodeBloat.pdf) by Lubomir Bourdev, Jaakko Jarvi. 46- Removed direct dependency on Boost.MPL, Boost.System and Boost.Test. 47- Started removing public macros for compile-time configuration of I/O extension tests, i.e. `BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES` and `BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES`. Instead, if a test target is built, it builds all its test cases unconditionally. 48 49### Fixed 50- Avoid `longjmp` interaction during destruction of I/O extension objects ([PR #433](https://github.com/boostorg/gil/pull/433)). 51- Fixed missing alignment default value in constructor of `image` class ([PR #429](https://github.com/boostorg/gil/pull/429)). 52- Fixed segmentation fault when reading corrupted PNG file ([PR #414](https://github.com/boostorg/gil/pull/414)). 53- Fixed illegal initialization of return values in the old IOv1 interface of I/O extension ([PR #409](https://github.com/boostorg/gil/pull/409)). 54 55### Acknowledgements 56 57Samuel Debionne, Thiago Henrique Hüpner, Pranam Lashkari, Mateusz Loskot, Debabrata Mandal, Olzhas Zhumabek 58 59## [1.72.0] - 2019-12-11 60 61### Added 62- GSoC 2019: Lanczos resampling for image down scaling ([PR #309](https://github.com/boostorg/gil/pull/309)). 63- GSoC 2019: Methods for binary thresholding, inverted binary thresholding and truncation thresholding ([PR #313](https://github.com/boostorg/gil/pull/313)). 64- GSoC 2019: Otsu thresholding method ([PR #314](https://github.com/boostorg/gil/pull/314)). 65- GSoC 2019: Adaptive thresholding using mean of the neighbourhood area ([PR #341](https://github.com/boostorg/gil/pull/341)). 66- GSoC 2019: Adaptive thresholding using gaussian-weighted sum of the neighbourhood area ([PR #379](https://github.com/boostorg/gil/pull/379)). 67- GSoC 2019: Harris response calculation (corner detector without non-maximum filtering) ([PR #350](https://github.com/boostorg/gil/pull/350)). 68- GSoC 2019: Hessian corner detector ([PR #364](https://github.com/boostorg/gil/pull/364)). 69- GSoC 2019: Types for defining 2D kernel, `kernel_2d` and `kernel_2d_fixed`, in Numeric extension ([PR #361](https://github.com/boostorg/gil/pull/361)). 70- GSoC 2019: Implementation of 2D convolution as new function `convolve_2d` ([PR #367](https://github.com/boostorg/gil/pull/367)). 71- GSoC 2019: Box filtering using the average filter ([PR #383](https://github.com/boostorg/gil/pull/383)). 72- GSoC 2019: Blur function based on normalized mean filter ([PR #383](https://github.com/boostorg/gil/pull/383)). 73- GSoC 2019: Sobel and Scharr operators ([PR #392](https://github.com/boostorg/gil/pull/392)). 74- GSoC 2019: Median filter to remove noise from image ([PR #393](https://github.com/boostorg/gil/pull/393)). 75- Continued adding new test cases and significantly improved overall test coverage. 76- Documented purpose of `cached_location_t` ([PR #287](https://github.com/boostorg/gil/pull/287)). 77- Function `convolve_1d` in Numeric extension for convenient use of `convolve_rows` and `convolve_cols` ([PR #347](https://github.com/boostorg/gil/pull/347) and [PR #367](https://github.com/boostorg/gil/pull/367)). 78- Function `extend_boundary` in Numeric extension to perform image boundary extension ([PR #386](https://github.com/boostorg/gil/pull/386)). 79- Project release notes maintained in Markdown file `RELEASES.md` ([PR #404](https://github.com/boostorg/gil/pull/404)). 80 81### Changed 82- Move all tests, core features and extensions, inside `test/` directory ([PR #302](https://github.com/boostorg/gil/pull/302)). 83 84### Removed 85- BREAKING: Replace Boost.MPL with Boost.MP11 ([PR #274](https://github.com/boostorg/gil/pull/274)). 86- Removed use of Boost.TypeTraits ([PR #274](https://github.com/boostorg/gil/pull/274)). 87- Dropped support for GCC <= 4.8 ([PR #296](https://github.com/boostorg/gil/pull/296)). 88- Remove `include/boost/gil/version.hpp` file as unused ([PR #403](https://github.com/boostorg/gil/pull/403)). 89 90### Fixed 91- Undetermined value of default-initialized channel and pixel objects ([PR #273](https://github.com/boostorg/gil/pull/273)). 92- Undefined behaviour due to `std::is_trivially_default_constructible` specializations ([PR #284](https://github.com/boostorg/gil/pull/284)). 93- Crash when reading PNG files with an invalid header ([PR #385](https://github.com/boostorg/gil/pull/385)). 94- Applied the [Rule of Three](https://en.wikipedia.org/wiki/Rule_of_three_(C%2B%2B_programming)) for numerous types. 95- Removed uses of deprecated implicit definition of defaulted copy assignment operator or copy constructor. 96 97### Acknowledgements 98 99Samuel Debionne, Tyler Deuty, Jean-David Gadina, Jan Houska, Pranam Lashkari, Mateusz Loskot, Stefan Seefeld, Miral Shah, Olzhas Zhumabek 100 101## [1.70.0] - 2019-04-12 102 103### Added 104- Numerous new test cases for existing features. 105- C++11 requirements checks to Boost.Build Jamfiles ([PR #260](https://github.com/boostorg/gil/pull/260)). 106 107### Changed 108- Split single `boost/gil/concepts.hpp` into multiple `boost/gil/concepts/*.hpp` headers ([PR #169](https://github.com/boostorg/gil/pull/169)). 109- Removed uses of `boost::enable_if` with `std::enable_if` ([PR #215](https://github.com/boostorg/gil/pull/215)). 110- Replaced own implementation of variant type used for `any_image` with Boost.Variant ([PR #231](https://github.com/boostorg/gil/pull/231)). 111- Moved original all-in-one test suite to `test/legacy/` ([PR #239](https://github.com/boostorg/gil/pull/239)). 112- Continued C++ modernization of the library source code. 113 114### Removed 115- Remove uses of deprecated `std::unary_function` and `std::binary_function` ([PR #191](https://github.com/boostorg/gil/pull/191)). 116- Removed uses of Boost.StaticAssert ([PR #207](https://github.com/boostorg/gil/pull/207)). 117- Removed uses of `BOOST_STATIC_CONSTANT` ([PR #211](https://github.com/boostorg/gil/pull/211)). 118- Removed uses of Boost.Function ([PR #213](https://github.com/boostorg/gil/pull/213)), Boost.Bind and Boost.Lambda ([PR #212](https://github.com/boostorg/gil/pull/212)). 119 120### Fixed 121- Fixed access to non-type results of metafunctions calls using `::value` convention ([PR #262](https://github.com/boostorg/gil/pull/262)). 122 123### Acknowledgements 124 125Samuel Debionne, Mateusz Loskot, Nikita Kniazev, Stefan Seefeld 126 127## [1.69.0] - 2018-12-12 128 129### Changed 130- Refactored library includes to `#include <boost/gil/...>` structure ([PR #145](https://github.com/boostorg/gil/pull/145)). 131 132### Removed 133- Header `include/boost/gil_all.hpp` file as deprecated ([PR #145](https://github.com/boostorg/gil/pull/145)). 134- Header `include/boost/gil_concepts.hpp` file as deprecated ([PR #145](https://github.com/boostorg/gil/pull/145)). 135- Header `include/boost/gil_config.hpp` file as unnecessary ([PR #144](https://github.com/boostorg/gil/pull/144)). 136 137### Fixed 138- Fixed `point<T>` divide and multiply to not to hardcode result as `point<double>` ([PR #157](https://github.com/boostorg/gil/pull/157)). 139- Fixed conflict between `std::fill_n` and `boost::range::fill_n` ([PR #152](https://github.com/boostorg/gil/pull/152)). 140- Fixed issue with re-assignment of functor from `for_each_pixel` ([PR #139](https://github.com/boostorg/gil/pull/139)). 141- Fixed missing template keyword prior to dependent name `axis_iterator` ([PR #129](https://github.com/boostorg/gil/pull/129)). 142- Fixed loading of grayscale PNG with alpha channel (tRNS chunks) ([PR #118](https://github.com/boostorg/gil/pull/118)). 143 144### Acknowledgements 145 146Mateusz Loskot, Marcel Metz, Stefan Seefeld 147 148## [1.68.0] - 2018-08-09 149 150### Added 151- BREAKING: The library now requires a C++11-compliant compiler. 152- New top-level all-in-one `include/boost/gil.hpp` header. 153- Added Toolbox extension following the [review and acceptance into Boost](https://lists.boost.org/boost-announce/2011/01/0281.php). 154 155### Changed 156- The I/O extensions have been entirely rewritten as I/O v2, [reviewed and accepted into Boost](https://lists.boost.org/boost-announce/2011/01/0281.php). 157- Documentation has been reformatted and updated. 158 159### Removed 160- The existing I/O v1 extension has been replaced with I/O v2. 161 162### Acknowledgements 163 164Niklas Angare, Jan Beich, Edward Diener, Peter Dimov, Daniela Engert, Bill Gallafent, Christian Henning, Daniel James, Nikita Kniazev, Mateusz Loskot, Marcel Metz, Martin Osborne, Antony Polukhin, Stefan Seefeld 165 166## [1.53.0] - 2013-02-04 167 168### Fixed 169- Fixed self-assignment warnings (Trac [#4919](https://svn.boost.org/trac10/ticket/4919)). 170 171### Acknowledgements 172 173Lubomir Bourdev, Marshall Clow, Beman Dawes, Daniela Engert, Bill Gallafent, Doug Gregor, Boris Gubenko, Christian Henning, Michael Jackson, Daniel James, Hailin Jin, Nikita Kniazev, Mateusz Loskot, John Maddock, Marcel Metz, Antony Polukhin, Stefan Seefeld 174 175## [1.35.0] - 2008-03-29 176 177### Added 178- First Boost release of Generic Image Library developed by Lubomir Bourdev and Hailin Jin following the [review and acceptance into Boost](https://lists.boost.org/Archives/boost/2006/11/112896.php). 179 180### Acknowledgements 181 182Lubomir Bourdev, Beman Dawes, Hailin Jin, John Maddock and all the reviewers of the library. 183 184--------------------------------------------------------------------- 185 186## Pre-Boost History of the Generic Image Library (GIL) by Adobe 187 188The log of changes prior the first release of GIL as part of Boost 189was collected from https://stlab.adobe.com/gil/news.html site and 190linked PDF documents with detailed changes. 191 192--------------------------------------------------------------------- 193 194## [2.1.1] - 2007-09-15 195 196### Changed 197- Swapped template arguments for `color_element_type`, `color_element_reference_type` and `color_element_const_reference_type` to take `ColorBase` first for consistency with the other similar metafunctions. 198 199### Fixed 200- Minor bugs fixed. 201 202## [2.1.0] - 2007-06-17 203 204### Added 205- Added support for accessing raw memory from image views by getting raw pointer to the beginning of the memory 206 associated with a homogeneous image view using new functions `interleaved_view_get_raw_data` or `planar_view_get_raw_data`. 207- Support for non-byte-aligned images (e.g. 6-bit RGB222, or 1-bit grayscale). 208 To support bit distance, we are using the same classes that were providing byte distance (`byte_addressible_step_iterator`, `byte_addressible_2d_locator`, etc.) 209 except that now they operate on memory units instead of bytes. 210 A memory unit can currently be either a byte or a bit. 211- New `byte_to_memunit` function required by the `MemoryBasedIteratorConcept`, which specifies the number of bits per memory unit (either 1 or 8). 212- New classes for references and iterators over bit-aligned pixels: `bit_aligned_pixel_reference`, `bit_aligned_pixel_iterator`. 213 The memory unit of bit aligned pixel iterators is a bit, i.e. `byte_to_unit<bit_aligned_pixel_iterator<T> >::value == 8`. 214- The `value_type` of a bit-aligned image is a `packed_pixel` (new name, see below). 215 A packed pixel is a pixel that is byte-aligned but whose channels may not be byte aligned. 216 There is a strong analogy with the way interleaved and planar images are implemented, with `packed_pixel` corresponding 217 to `pixel`, `bit_aligned_pixel_reference` corresponding to `planar_pixel_reference` 218 and `bit_aligned_pixel_iterator` corresponding to `planar_pixel_iterator`. 219- New metafunction `bit_aligned_image_type` for constructing bit-aligned images. 220 A bit-aligned image is an image whose pixels may not be byte-aligned (such as an RGB222 image). 221- New metafunction `pixel_value_type` for constructing homogenous pixel value from elements. 222- New metafunction `packed_pixel_type` for constructing homogenous packed pixel from elements. 223- New metafunction `packed_image_type` for constructing packed images with packed pixel as its `value_type`. 224 225### Changed 226- Renamed `heterogeneous_packed_pixel` to `packed_pixel`. 227- Renamed `ByteAdvancableIteratorConcept` to `MemoryBasedIteratorConcept`. 228- Renamed `byte_addressable_{step_iterator,2d_locator}` to `memory_based_{step_iterator,2d_locator}`. 229- Renamed `byte_{advance,advanced,distance,step}` to `memunit_{advance,advanced,distance,step}`, 230- Renamed `locator::row_bytes()` to `locator::row_size()` and `locator::pix_bytestep()` to `locator::pixel_size()`. 231- Simplified `packed_channel_reference` and `packed_dynamic_channel_reference` by removing the `BitField` parameter (it is now computed automatically). 232- Improved `channel_convert` - it is faster by switching to floating-point math only if necessary. 233 234### Fixed 235- Fixed a roundoff bug in the conversion (related to floating-point math switching). 236- Fixed histogram regression tests. 237 238## [2.0.x] - 2007-03-27 239 240### Changed 241- Minor bug fixes. 242- Regression test improvements. 243 244### Removed 245- Removed any external dependencies from the regression tests. 246 247## [2.0.0] - 2007-03-08 248 249### Added 250- Further Boost integration: 251 - Directories follow the Boost convention. 252 - Different models are usually now split in separate files. 253 - Renamed some files for better consistency. 254 - Renamed classes, functions and template arguments with longer but clearer and more consistent names. 255- New `deprecated.hpp` - a file that maps many of the deprecated names to current ones. 256 Including it will help porting your code to GIL 2.0. After porting to GIL 2.0, however, 257 make sure that your code works when this file is not included. 258- New `swap` function required for reference proxies, since the `std::swap` default does not do the right thing. 259- Metafunctions `iterator_type_from_pixel` and `view_type_from_pixel` to allow creating standard iterators and views associated with a pixel type. 260- New `scoped_channel_value`, a channel adaptor that changes the operational range of a channel. `bits32f` is defined as a `float` with range `0.0` to `1.0`. 261- New `packed_channel_value`, `packed_channel_reference` and `packed_dynamic_channel_reference` which model channels operating on bit ranges. 262- New `heterogeneous_packed_pixel`, a model of a pixel whose channels are bit ranges (e.g. 16-bit RGB pixel in the 565 format). 263- Metafunctions to get the k-th element of a color base (or its reference): `kth_semantic_element_type`, `kth_semantic_element_reference_type`, `kth_semantic_element_const_reference_type`. 264- Metafunctions to operate on pixel iterator: `const_iterator_type`, `iterator_is_mutable`, `is_iterator_adaptor`. 265- New image view algorithms `uninitialized_fill_pixels`, `uninitialized_copy_pixels` and method `is_1d_traversable`. 266- Added support for creating images with a new value to fill. 267 268### Changed 269- Updated the design guide and tutorial, updated syntax of concepts to the latest concepts proposal. 270- In `image`, `image_view`, `any_image`, `any_image_view`: 271 There are no longer global functions `get_width()`, `get_height()`, `get_dimensions()`, `num_channels()`. 272 Use methods `width()`, `height()`, `dimensions()` instead. 273- In models of pixel, pixel iterator, pixel locator, image view and image: 274 There used to be different ways of getting to a pixel, channel, color space, etc. of an image view, 275 pixel, locator, iterator and image (e.g. traits, member typedefs). 276 Now all pixel-based GIL constructs (pixels, pixel iterators, locators, image views and images) model 277 `PixelBasedConcept`, which means they provide the following metafunctions: `color_space_type`, `channel_mapping_type`, `is_planar`, `num_channels` 278 and for homogeneous constructs we also have: `channel_type`. 279 To get the pixel type or pixel reference/const reference type of an image, image view, locator 280 and pixel, use member typedefs `value_type`, `reference` and `const_reference`. 281- In `locator`, `image`, `image_view`, `any_image` and `any_image_view`: 282 Removed `dynamic_x_step_t`, `dynamic_y_step_t`, `dynamic_xy_step_t` and `dynamic_xy_step_transposed_t` 283 as member typedefs of locators and image views. 284 Instead, there are separate concepts `HasDynamicXStepTypeConcept`, `HasDynamicYStepTypeConcept`, 285 `HasTransposedTypeConcept` which all GIL-provided locators, views and images model. 286 Those concepts require a metafunction to get the corresponding type. 287 Analogously, all GIL pixel iterators model `HasDynamicXStepTypeConcept`. 288- In channel, the min and max value is now part of the channel traits. 289 For all built-in types the channel range equals the physical range (as determined by `std::numeric_traits<T>::max()`). 290- Provide `channel_convert` support to convert between any of the GIL-provided channel types. 291 The operation is also consistent - conversion is done as a linear mapping that maps the min/max to the min/max. 292- In pixel, major redesign of pixel-level constructs. 293 Renamed `color_base` to `homogeneous_color_base` and defined it once, not for each color space. 294 The color base is a first-class concept and allows to model any bundle of color elements. 295 Work needed to define a new color space has been simplified a lot. 296 All former pixel-level algorithms and accessors now operate on color bases. 297 The elements of a color base can be accessed by physical or semantic index or by name (channel names 298 can no longer be accessed as members of the pixel e.g. `my_pixel.gray = 0`), use `get_color` instead). 299- In color base, algorithms now can take heterogeneous pixels (i.e. pixels each channel of which may have a different type). 300 The `color_convert` can operate on heterogeneous pixels with the exception of to/from RGBA. 301- In image, the class `image` is no longer templated over the image view. It is now templated over pixel value. 302- In dynamic image, instead of removed `cross_vector_image_types` and `cross_vector_image_view_types`, create MPL vector to enumerate types. 303- Renamed algorithms `{copy,equal,fill,for_each,generate,max,min,transform}_channels` to `static_{copy,equal,fill,for_each,generate,max,min,transform}`. 304- Rename metafunctions `channel` to `at_c`, `semantic_channel` to `semantic_at_c`, `get_nth_channel` to `dynamic_at_c`. 305- Renamed `planar_{ptr,ref}` to `planar_pixel_{iterator,reference}`. 306- Renamed `PixelConcept` to `HomogeneousPixelConcept`. 307- Renamed `HeterogeneousPixelConcept` to `PixelConcept`. 308- Renamed `pixel_image_iterator` to `iterator_from_2d`. 309- Renamed `is_contiguous` to `is_1d_traversable`. 310- Renamed `membased_2d_locator` to `byte_addressable_2d_locator`. 311- Renamed `resize_clobber_image` to `image::recreate`. 312 313### Fixed 314- Now compiles with GCC 4.1.1. 315- Fixed some bugs in defining reference proxies. 316 317### Removed 318- Flattened the `core` directory as part of Boost integration. 319- Got rid of channel accessors from pixel types. 320- Got rid of `pixel_traits`. Use nested typedefs `value_type`, `reference` and `const_reference` or metafunctions implementing `PixelBasedConcept`. 321- Got rid of `pixel_iterator_traits`. Use `std::iterator_traits`, `PixelBasedConcept` metafunctions or the new metafunctions for pixel iterators. 322- Got rid of the ability to directly access pixels through image, only through views. The image no longer models STL's random access container concept. 323- No more LAB and HSB color space, because there is no color conversion support implemented for these. New color spaces can be added with just a few lines of code. 324 325## [1.x] - 2007-01-03 326 327### Added 328- Restored back the ability to assign a channel to a grayscale pixel. 329 330### Changed 331- Fixed some minor issues with color converted views of dynamic images. 332 333## [1.x] - 2006-11-07 334 335GIL accepted to Boost. 336 337GIL's Boost review was successful and GIL will be part of the Boost libraries. 338It will most likely first appear in the 1.35 version of Boost. 339In the future our web page will continue to provide you with the latest 340improvements to GIL, as we have the flexibility to release more frequently than Boost. 341 342## [1.x] - 2006-10-20 343 344### Added 345- New regression tests. 346- Source code of usage examples is available to download from the website. 347 348### Changed 349- Minor changes to GIL core. 350 351## [1.x] - 2006-10-02 352 353### Added 354- First version of the Numeric extension. 355 The extension provides some basic image processing algorithms, such as convolution and resampling. 356- Introduction of pixel traits. 357 358### Changed 359- Improved consistent use of MPL predicates and standardized template parameter names. 360 361## [1.x] - 2006-09-20 362 363### Added 364- GIL now allows users to overload the default color conversion with one of their own. 365- Section in the design guide describes how to overload default color conversion. 366 367### Changed 368- Color conversion improvements. 369 370## [1.0] - 2006-08-29 371 372### Added 373- Pixel dereference adaptors are introduced. 374- Locator concepts/models are made more generic. 375- Example of creating the Mandelbrot set is described in the tutorial. 376 377### Changed 378- It is now easier to construct virtual image views. 379 380## [] - 2006-06-27 381 382### Added 383- A GIL Flash presentation is posted (aka video lecture). 384 385## [] - 2006-06-14 386 387### Added 388- GIL homepage goes live 389