• Script: improve mrel to always ask a Fedora Kerberos ticket.
• Use CMake EVAL CODE to forward arguments passed to module CMake function. (fix issue #419 with contribution from Benoit Dumas)
• Doc: update email address in Code of conduct to report bad behavior to maintainers.
• Move modules-interest mailing-list to HPSF.
• Script: add tests on mb utility to track performance of load, list and purge sub-commands with large number (>100) of modules.
• Script: fix procedure call timing of Tcllib profiler module within mlprof to avoid mixing timers from calls made at different interpretation level.
• Parse loaded environment in early execution stage and always fail if an inconsistency is detected.
• Improve performances of loaded module comparison used when checking conflict and requirement dependencies. (fix issue #603)
• Fix environment variable synchronization issue between modulefile evaluation interpreters: supersede the append Tcl command rather sync interpreters for each environment variable change. A substantial performance improvement is observed when loading or unloading many modulefiles. (fix issue #603)
• Script: add --with-lmod option to mb command to compare current Modules version against an installed version of Lmod.
• Update the sh-to-mod mechanism to correctly parse shell alias on Dash shell version 0.5.13.
• Update the sh-to-mod mechanism to correctly parse path-like environment variable on Fish shell version 4.3.
• When fetching user's groups, in case a group name cannot be resolved use this group gid number as name instead of raising an error. (fix issue #604)
• Introduce path_entry_reorder configuration option that change order of entry in a path-like environment variable when it is added again. This new configuration option is disabled by default. This option can be changed at installation time with --enable-path-entry-reorder. When path_entry_reorder is changed with config sub-command, it sets the MODULES_PATH_ENTRY_REORDER environment variable. (fix issue #595 with contribution from Achim Gsell)
• Install: reorder the options in the configure script help message alphabetically.
• Doc: add manual page for modulecmd(1) command.
• Make getenv modulefile command available from module rc file evaluation context. (fix issue #588)
• Install: add installation option --disable-compressed-changelog<--enable-compressed-changelog> to cope with packaging process handling documentation file compression at their level. (fix issue #592)
• Add -p option as an abbreviated form for --paginate. (fix issue #593)
• Add -P option as an abbreviated form for --no-pager. (fix issue #606)
• Doc: add organize-tsc-meeting guide.
• Add the paginate configuration option to control whether or not output message should be piped into defined pager by default. This option can be changed at installation time with --enable-paginate. When paginate is changed with config sub-command, it sets the MODULES_PAGINATE environment variable. (fix issue #594)
• Doc: add plan-next-release-content guide
• Introduce the non_exportable_tags configuration option that lists tags that should not be exported to modules once loaded. When non_exportable_tags is changed with config sub-command, it sets the MODULES_NON_EXPORTABLE_TAGS environment variable. (fix issue #608)
• Improve the performance of the module’s column output by removing the costly optimization that attempts to fit more columns within the available screen width. (fix issue #622)
• Fix superseding definition of source Tcl command when source_cache configuration option is enabled to support -encoding option. (fix issue #627)
• Correctly parse the module specifications passed as argument on depends-on, always-load and prereq-all modulefile commands. It especially fixes module specification containing the definition of variants. (fixes issue #626)
• Report the full via path for modules on avail and spider sub-commands rather the last part of this via information. JSON output is updated to report the via key as an array rather as a string. (fix issue #586)
• Introduce the info_extension configuration option to consider that module extensions have a pure informational purpose and no module alias is associated to them. Extensions defined with provide modulefile command are not affected by this mechanism. When info_extension is changed with config sub-command, it sets the MODULES_INFO_EXTENSION environment variable. (fix issue #585)
• Doc: add linked-envvars design notes.
• Add the linked_envvars configuration option to apply the same value update commands to all linked environment variables. When linked_envvars is changed with config sub-command, it sets the MODULES_LINKED_ENVVARS environment variable. (fix issue #609)
• Doc: add init-envvars design notes.
• Add the init_envvars configuration option to define initial values to assign to environment variables before they are modified for the first time. This option can be changed at installation time with --with-init-envvars. When init_envvars is changed with config sub-command, it sets the MODULES_INIT_ENVVARS environment variable. (fix issue #572)
• Enable lexical binding in Emacs addon file. (contribution from Peter Oliver)
• Script: update mt utility to analyze test suite log file when test suite run is aborted.
• Correctly match loaded modules specified as requirement with a trailing / character after module name. (fix issue #640)
• Also consider - in addition to . as a version number separator character when selecting a module with the extended_default mechanism. (fix issue #619)
• Rename Modules initialization script for Python env_modules.py to make it a proper Python module name.
• Rename the Python initialization script to env_modules.py so that it uses a valid Python module name. Generates a python.py symlink onto env_modules.py to preserve compatibility. (contribution from Byron Boulton)
• Install: introduce the --enable-set-pythonpath installation option to prepend Modules init directory to the PYTHONPATH environment variable during Modules initialization. This option is enabled by default and make it easier to import the env_modules Python module. (fix issue #483 with contribution from Byron Boulton)
• Install: add the --enable-append-pythonpath installation option, which causes --enable-set-pythonpath to append the Modules init directory to PYTHONPATH instead of prepending it. (contribution from Byron Boulton)
• Doc: clarify shell script, executed by source-sh modulefile command or sh-to-mod sub-command, does not get access to shell aliases, functions or completions settings only available in interactive sessions or defined in profile files. (fix issue #646)
• Report a global known error when Modules Tcl extension library cannot be loaded. (fix issue #644)
• Add domainname configuration option to define the command to run to fetch domain name. It can be changed at installation time with --with-domainname and --with-domainname-opts options. When domainname is changed with config sub-command, it sets the MODULES_DOMAINNAME environment variable. (fix issue #645)
• Update the source-sh modulefile command and sh-to-mod sub-command mechanism to produce a more consistent value for a path-like environment variable change that requires both a prepended and an appended part expressed with a different delimiter character: a setenv command is now generated instead in this situation.
• Update the source-sh modulefile command and sh-to-mod sub-command mechanism to no longer de-duplicate a path entry found several times in the entries it prepends or in the entries it appends, and to add the --duplicates option on a generated prepend-path or append-path command when one of the path entries it adds is already found in the variable value prior script evaluation, is found several times in the entries it adds or is found in both the entries it prepends and the entries it appends, so this entry is not silently absorbed by these commands' default de-duplication behavior nor relocated by the path_entry_reorder configuration option.
• Resolve an exact name/version specification without validating every sibling modulefile found in its directory, by walking versions from the dictionary-highest to the dictionary-lowest and stopping as soon as the implicit default and latest symbolic versions are settled. A substantial performance improvement is observed when loading an existing modulefile out of a directory holding hundreds or thousands of sibling versions. (fix issue #561)
• Doc: add module-find-and-resolution design notes.
• Doc: add devel-testsuite guide describing the DejaGnu testsuite structure.
• Doc: document and cross-reference commit-message-conventions in CONTRIBUTING.
• Doc: document code-comments conventions in CONTRIBUTING.
• Doc: add devel-ci guide describing continuous integration usage.
• Install: rename the shipped COPYING.GPLv2 license file to COPYING, the name convention recognized by packaging tools.
• Doc: fix favicon rendering with a black background instead of white on viewers that ignore transparency, by setting its transparent pixels to a white matte color instead of black.
• Doc: document Windows Terminal profile setup as an alternative way to initialize Modules on Windows without an install script. (fix issue #634)
• Install: use reg add instead of setx /M to persist the system-wide PATH environment variable in INSTALL.bat and UNINSTALL.bat, as setx silently truncates the value it writes to 1024 characters, which could corrupt the system PATH when installing from a shell with an already long inherited PATH (e.g. a Visual Studio Developer Prompt). (fix issue #654)
• Doc: add hook-api design notes.
• Add the add-hook siteconfig command to register a procedure on one of 4 stable hook events (before-modulefile-eval, after-modulefile-eval, before-modulerc-eval, after-modulerc-eval), so sites no longer need to rely on trace or procedure renaming, which bind to internal implementation details, to run code before or after a modulefile or modulerc evaluation. (fix issue #607)
• Doc: add add-new-hook-event guide describing how to contribute a new hook event.
• Doc: add sync-remote-appdir cookbook recipe.
• Testsuite: add completion testsuite to validate shell Tab completion of this project. This testsuite can be invoked with make testcompletion or script/mt comp. It drives a real bash, zsh, fish or tcsh session through Expect to press the Tab key against the built shell completion script and check the resulting candidate list.
• Init: fix numerous inconsistencies between module help's usage message and the option flags and positional arguments each sub-command actually accepts, and between that usage message and what bash, fish, tcsh and zsh Tab completion offer for each sub-command. Guarded against regressing with a new ground-truth check in the completion testsuite that compares module/ml Tab completion against the sub-commands, switches, options and argument kinds parsed straight out of module help.
• Init: no longer offer the legacy initadd, initclear, initlist, initprepend and initrm sub-commands as Tab completion candidates (bash, fish, tcsh, zsh), since module help does not document them.
• Testsuite: add cookbook testsuite to validate the recipes documented under cookbook. This testsuite can be invoked with make testcookbook or script/mt cook. It builds a sandboxed fixture from the exact files a recipe ships under doc/example/, then runs the commands demonstrated in the recipe's Usage example documentation in order and checks that similar output is obtained. Currently covers the sync-remote-appdir recipe.
• Doc: add modulepath-ignore design notes.
• Add modulepath-ignore modulefile command to define, from rc files, gitignore-style patterns describing modulepath content to ignore when searching for modulefiles. Ignored files and directories are handled as if they do not exist: they are not checked, not walked down, not reported and not recorded in modulepath cache file. Add modulepath_ignore configuration option and --no-modulepath-ignore command line switch to control whether pattern definitions are applied. (fix issue #562)
• Install: add the --with-pythondir installation option to define the directory where to install the env_modules Python module. It enables for instance to install env_modules.py with the other Python modules available on the system. When this option is set, --enable-set-pythonpath adds this directory to PYTHONPATH instead of the Modules init directory. (fix issue #643)
• Introduce ignore_cache_subcmds configuration option that defines a list of module sub-commands on which module cache files are ignored. It is useful when cache files are large: a sub-command targeting specific modules (like load) may find them faster by walking through modulepath directories than by evaluating whole cache files. When ignore_cache_subcmds is changed with config sub-command, it sets the MODULES_IGNORE_CACHE_SUBCMDS environment variable. (fix issue #563)
• Protect the creation of the Tcl sub-interpreters used to evaluate modulercs and modulefiles with the quarantine mechanism. Environment variables listed in the run_quarantine configuration option are unset or set to the value of their corresponding MODULES_RUNENV_\<VAR\> variable during this creation step, then restored to their original value. (fix issue #623)
• Doc: adopt the Linux kernel policy on ai-coding-assistants in CONTRIBUTING: AI agents must never add their own Signed-off-by: trailer and their involvement must be disclosed with an Assisted-by: trailer.
• Doc: add the user-guide document that explains a selection of useful but lesser known features through practical examples and common use cases.
• Init: fix command injection in Bash completion when module names contain shell meta-characters. Completion candidates were passed to compgen -W which evaluates command substitution syntax. (fix CVE-2026-85013 found by AISLE in partnership with Red Hat)
• Accept abbreviated upper bounds in version ranges such as @3.20:3 to select versions starting at 3.20 within major version 3. (fix issue #698)
• Fix resolution of relative path entries in MODULEPATH when a module is loaded during a modulefile evaluation. Such entry was resolved against the directory of the evaluating modulefile rather than against the current working directory. A relative directory argument of the is-used modulefile command or of the unuse sub-command is also resolved against the current working directory to recognize such entry whatever its form.
• Keep non-sticky requirements of sticky modules loaded during a purge and explicitly report why their unload is skipped according to the sticky_purge configuration. (fix issue #582)
• Fix internal error raised by switch sub-command when the unload of the switched-off module fails after some of its dependent modules were unloaded for reload, and switch sequence continues as switch_unload is not set in abort_on_error. Dependent modules restored by the failed unload are not reloaded anymore.