diff --git a/aider/versioncheck.py b/aider/versioncheck.py
index 3f69aeb6f..99838d08a 100644
--- a/aider/versioncheck.py
+++ b/aider/versioncheck.py
@@ -9,6 +9,17 @@ import aider
 from aider import utils
 from aider.dump import dump  # noqa: F401
 
+def install_from_main_branch(io):
+    """
+    Install the latest version of aider from the main branch of the GitHub repository.
+    """
+    return utils.check_pip_install_extra(
+        io,
+        "aider",
+        "Installing the latest version from the main branch...",
+        ["--upgrade", "git+https://github.com/paul-gauthier/aider.git"]
+    )
+
 
 def check_version(io, just_check=False, verbose=False):
     fname = Path.home() / ".aider" / "caches" / "versioncheck"