v3.39.0

• Added Env Precedence Experiment (#1038, #1633 by @vmaerten).
• Added a CI lint job to ensure that the docs are updated correctly (#1719 by @vmaerten).
• Updated minimum required Go version to 1.22 (#1758 by @pd93).
• Expose a new EXIT_CODE special variable on defer: when a command finishes with a non-zero exit code (#1484, #1762 by @dorimon-1 and @andreynering).
• Expose a new ALIAS special variable, which will contain the alias used to call the current task. Falls back to the task name. (#1764 by @DanStory).
• Fixed TASK_REMOTE_DIR environment variable not working when the path was absolute. (#1715 by @vmaerten).
• Added an option to declare an included Taskfile as flattened (#1704 by @vmaerten).
• Added a new --completion flag to output completion scripts for various shells (#293, #1157 by @pd93).
  • This is now the preferred way to install completions.
  • The completion scripts in the completion directory are now deprecated.
• Added the ability to loop over a matrix of values (#1766, #1767, #1784 by @pd93).
• Fixed a bug in fish completion where aliases were not displayed (#1781, #1782 by @vmaerten).
• Fixed panic when having a flattened included Taskfile that contains a default task (#1777, #1778 by @vmaerten).
• Optimized file existence checks for remote Taskfiles (#1713 by @vmaerten).