1 If you are reading this in the git repository, the contents
2 refer to *unreleased* changes since the last SCons release.
3 Past official release announcements appear at:
5 https://scons.org/tag/releases.html
7 ==================================================================
9 A new SCons release, 4.4.1, is now available on the SCons download page:
11 https://scons.org/pages/download.html
14 Here is a summary of the changes since 4.4.0:
19 - List new features (presumably why a checkpoint is being released)
21 DEPRECATED FUNCTIONALITY
22 ------------------------
24 - List anything that's been deprecated since the last release
26 CHANGED/ENHANCED EXISTING FUNCTIONALITY
27 ---------------------------------------
29 - List modifications to existing features, where the previous behavior
30 wouldn't actually be considered a bug
32 - Override environments, created when giving construction environment
33 keyword arguments to Builder calls (or manually, through the
34 undocumented Override method), were modified not to "leak" on item deletion.
35 The item will now not be deleted from the base environment.
37 - Added support for tracking beamer themes in the LaTeX scanner.
39 - MSVS: msvs project files are always generated before the corresponding
40 msvs solution files. This changes the behavior of clean for a project
41 generated with auto_build_solution disabled and explicit solution
42 generation: when the solution files are cleaned, the project files are
43 also cleaned. The tests for vs 6.0-7.1 were updated accordingly.
45 - MSVS: Add an optional keyword argument, auto_filter_projects, to
46 MSVSSolution. Accepted values for auto_filter_projects are:
47 - None [default]: raise an exception when solution file names or nodes
48 are detected in the projects argument list.
49 - True or evaluates True: automatically remove solution file names and
50 nodes from the project argument list.
51 - False or evaluates False: leave solution file names and nodes in the
52 project argument list. An exception is not raised.
53 Solution file names and/or nodes in the project argument list cause
54 erroneous Project records to be produced in the generated solution file.
55 As a convenience, a user may elect to ignore solution file names and nodes
56 in the projects argument list rather than manually removing solution file
57 names and nodes from the MSVSProject return values.
59 - SCons C preprocessor:
60 - Update the optional integer suffixes to include the z|Z and wb|WB
62 - Add support for binary integer constants.
63 - Add support for octal integer constants. Previously, octal integers
64 were evaluated as decimal integers. A literal zero (0) is treated as an
66 - Change the method for attempted conversion of a define expansion value
67 to an integer from a literal to a constant expression evaluation.
69 - Add a tag to each CacheDir to let systems ignore backing it up
70 (per https://bford.info/cachedir/). Update the way a CacheDir
71 is created, since it now has to create two files.
73 - The Dictionary method now has an as_dict flag. If true, Dictionary
74 always returns a dict. The default remains to return different
75 types depending on whether zero, one, or multiple construction
80 - PackageVariable now does what the documentation always said it does
81 if the variable is used on the command line with one of the enabling
82 string as the value: the variable's default value is produced (previously
83 it always produced True in this case).
85 - Temporary files created by TempFileMunge() are now cleaned up on
86 scons exit, instead of at the time they're used. Fixes #4595.
88 - AddOption now correctly adds short (single-character) options.
89 Previously an added short option would always report as unknown,
90 while long option names for the same option worked. Short options
91 that take a value require the user to specify the value immediately
92 following the option, with no spaces (e.g. -j5 and not -j 5).
94 - Fix a problem with compilation_db component initialization - the
95 entries for assembler files were not being set up correctly.
97 - On Darwin, PermissionErrors are now handled while trying to access
98 /etc/paths.d. This may occur if SCons is invoked in a sandboxed environment
101 - Added error handling when creating MSVC detection debug log file specified
102 by SCONS_MSCOMMON_DEBUG.
104 - MSVS: Modify select msvs test scripts to run on platforms not supported by
105 the msvs/msvc tool implementation via a default host architecture for
106 unsupported platforms.
108 - MSVS: Fixed early loop exit in select msvs test scripts. Select msvs test
109 scripts were being invoked for msvc version 8.0 only. Additional msvs
110 tool and test changes due to the msvs test scripts being run for all msvc
111 versions (i.e., minor test and tool issues went undetected).
113 - MSVS: for variant build configurations, msvs solution files are
114 generated in the source directory and a placeholder file is generated in
115 the variant build directory. This mirrors the behavior of generated
118 - MSVS: msvs project files are generated before the corresponding msvs
119 solution file. User-specified project GUIDs should now be correctly
120 written to the solution file.
122 - SCons C preprocessor: Preserve literals that contain valid integer
123 substring specifications. Previously, the integer suffix could be
124 stripped from a symbol that contained an integer and suffix substring.
126 - SCons C preprocessor: Update the optional integer suffixes to include
127 support for the alternate orderings of unsigned with long or long long as
128 defined in the c/cpp grammar.
130 - SCons C preprocessor: Update the optional integer suffixes for case
131 insensitive specifications as defined in the c/cpp grammar.
133 - Fix nasm test for missing include file, cleanup.
135 - Skip running a few validation tests if the user is root and the test is
136 not designed to work for the root user.
141 - List improvements that wouldn't be visible to the user in the
142 documentation: performance improvements (describe the circumstances
143 under which they would be observed), or major code cleanups
145 - For consistency with the optparse "add_option" method, AddOption accepts
146 an SConsOption object as a single argument (this failed previously).
147 Calling AddOption with the full set of arguments (option names and
148 attributes) to set up the option is still the recommended approach.
150 - Add clang and clang++ to the default tool search orders for POSIX
151 and Windows platforms. These will be searched for after gcc and g++,
152 respectively. Does not affect explicitly requested tool lists. Note:
153 on Windows, SCons currently only has builtin support for clang, not
154 for clang-cl, the version of the frontend that uses cl.exe-compatible
155 command line switches.
160 - List changes in the way SCons is packaged and/or released
165 - List any significant changes to the documentation (not individual
166 typo fixes, even if they're mentioned in src/CHANGES.txt to give
167 the contributor credit)
169 - Some manpage cleanup for the gettext and pdf/ps builders.
171 - Some clarifications in the User Guide "Environments" chapter.
173 - Clarify documentation of Repository() in manpage and user guide.
175 - Many grammatical and spelling fixes in the documentation.
181 - List visible changes in the way SCons is developed
183 Thanks to the following contributors listed below for their contributions to this release.
184 ==========================================================================================
187 git shortlog --no-merges -ns 4.0.1..HEAD