3.15.3

Enhancements

• EXE: Add script environment variables to pre-uninstall scripts. (#1206)

Bug fixes

• EXE: Fix regression that placed the pre-uninstall script in the package cache. (#1205)

Contributors

• @marcoesters

3.15.2

Enhancements

• EXE: Expose uninstallation options as environment variables for pre-uninstallation scripts. (#1197)

Bug fixes

• PKG: Do not fail the installer when ownership of files in $HOME cannot be changed. (#1177 via #1184)
• Fix TypeError when conda 26.x returns dict from fetch_latest(). (#1196)
• SH: Fix -t flag passing arguments to conda activate. (#1202 via #1203)

Contributors

• @marcoesters
• @lrandersson
• @gabrielbusta

New contributors

• @gabrielbusta made their first contribution in: #1196

3.15.0

Enhancements

• Add support for installing protected (frozen) conda environments. (#1149)
• An environment variable INSTALLER_PATH is now defined for pre-install and post-install scripts, and set to the path of the installer executable while the installer is running. (#1151)
• EXE: An environment variable INSTALLER_PLUGINSDIR is now also defined, it serves the same purpose as the NSIS variable $PLUGINSDIR. (#1151)
• Add architecture checks to macOS SH and PKG installers. (#1153, #1165)

Bug fixes

• EXE: Resolved an issue where a pre_install script was invoked even if the option was unchecked from the installation options page. (#1152)
• Sign all Mach-O binaries in the _internal directory of conda-standalone to pass notarization. (#1045 via #1159)

Other

• Remove Python 3.9 from the testing suite, include Python 3.13. (#1145)

Contributors

• @Jrice1317
• @marcoesters
• @lrandersson

3.14.3

Bug fixes

• Force symbolic linking of _conda in SH and PKG installers. This fixes a regression introduced by #1090 that made installations fail if _conda already exists in the target location. (#1135)
• EXE: Update calls to built-in function LogSet to instead call the intended macro definition ${LogSet}. (#1141)

Contributors

• @dlaehnemann
• @lrandersson

3.14.2

Enhancements

• Improve logging experience for EXE installers: (#1108)
  • Use cmd.exe to run commands so that outputs are captured.
  • Output command output in CLI installations.
  • Prevent log builds from writing to log before installation directory exists.
  • Remove registry entries while installation directory still exists so that errors are logged.

Bug fixes

• EXE: Fixed an issue for silent installers where command-line argument /KeepPkgCache was ignored and /NoRegistry would reset the default value. (#1132)

Contributors

• @marcoesters
• @lrandersson

3.14.1

Bug fixes

• EXE: Fix a regression with uninitialized variables that prevented installations from being added to the "Add/Remove Programs" list. (#1124)

Contributors

• @marcoesters
• @lranderssons

3.14.0

Enhancements

• Replace custom Python script with conda-standalone calls. This removes Python as an implicit dependency from installers. (#549 via #1089)
• EXE: Improve handling of options initialize_conda, register_python with their corresponding default values. The behavior of these options with respect to initialize_by_default and register_python_default is now consistent with .sh and .pkg installers. Windows CLI installations now don't add conda to PATH or register Python by default, and command-line arguments are only parsed when installing in silent mode (enabled with the flag /S). (#1003, #1004 via #1105)

Bug fixes

• Ensure cached repodata files are shipped in SH installers. (#1119 via #1121).

Contributors

• @jaimergp
• @marcoesters
• @lrandersson

Full Changelog: 3.13.1...3.14.0

3.13.1

Bug fixes

• SH: Resolve malformed text displayed during installation. (#1104)

Contributors

• @lrandersson

3.13.0

Enhancements

• Add support for installing protected (frozen) conda environments. (#1058)
• Ship conda-meta/initial-state.explicit.txt as a copy of the lockfile that provisions the initial state of each environment. (#1052 via #1059)
• Remove unused functions from _nsis.py. (#1068)
• Port script execution, AutoRun manipulation, and directory creation functions from _nsis.py to NSIS. (#1069)
• Unset additional environment variables in shell-based installers to avoid accidental loading of external libraries. (#1082)
• Include the license file in PKG installers. (#1074 via #1085)

Bug fixes

• SH: Fixed misleading wording for shell initialization in installation prompt. (#1039 via #1340)
• PKG: Restore the default value of enable_currentUserHome to the old default value (true). (#1070 via #1088)
• Rename mamba-based standalone binaries to micromamba and create a symbolic link to _conda for backwards compatibility. (#1033 via #1090)
• Add guards to macOS and glibc version checks. (#1094)
• EXE: Remove write access for users during the installation process. (CVE-2025-64343 via c368383710a7c2b81ad1b0ecb9724b38d3577447)
• EXE: Remove write access for users except for the installing user from single-user installations. (CVE-2025-64343 via c368383710a7c2b81ad1b0ecb9724b38d3577447)

Docs

• Document that check_path_length defaults to False in line with prior behavior and declare
  it as bool only in the schema. (#1036)
• PKG: Clarify that the profile of all available shells will be modified by default. (#1070 via #1088)

Other

• Fix typo in license prompt message for SH installers. (#1035 via $1053)
• CI: Update signtool.exe path for Windows 2025 runner images (SDK 10.0.26100.0) (#1073)
• CI: Use windows-2022 for integration tests. (#1077)

Contributors

• @Jrice1317
• @jaimergp
• @marcoesters
• @lrandersson
• @dionizijefa

3.12.2

Bug fixes

• Re-enable boolean values for initialize_conda on Windows. (#1032)

Contributors

• @marcoesters