tmux-python · tony · Jun 27, 2026 · Jun 27, 2026 · Jun 27, 2026 · Jun 27, 2026
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.14']
-        tmux-version: ['3.2a', '3.3a', '3.4', '3.5', '3.6', 'master']
+        tmux-version: ['3.2a', '3.3a', '3.4', '3.5', '3.6', '3.7', 'master']
     steps:
       - uses: actions/checkout@v6
 

diff --git a/CHANGES b/CHANGES
@@ -44,6 +44,16 @@ $ tmuxp@next load yoursession
 _Notes on the upcoming release will go here._
 <!-- END PLACEHOLDER - ADD NEW CHANGELOG ENTRIES BELOW THIS LINE -->
 
+### Dependencies
+
+#### Minimum `libtmux~=0.59.0` (was `~=0.58.1`) (#1057)
+
+### What's new
+
+#### tmux 3.7 support (#1057)
+
+tmuxp now supports tmux 3.7, which joins 3.2a through 3.6 in the tested version range. There are no behavior changes for users on earlier tmux releases.
+
 ## tmuxp 1.70.1 (2026-06-16)
 
 tmuxp 1.70.1 bumps libtmux to 0.58.1, fixing a pytest 9.1 plugin import failure that broke test collection for projects using tmuxp's or libtmux's fixtures.

diff --git a/pyproject.toml b/pyproject.toml
@@ -39,7 +39,7 @@ include = [
   { path = "conftest.py", format = "sdist" },
 ]
 dependencies = [
-  "libtmux~=0.58.1",
+  "libtmux~=0.59.0",
   "PyYAML>=6.0"
 ]
 

diff --git a/tests/workspace/test_builder.py b/tests/workspace/test_builder.py
@@ -1517,7 +1517,13 @@ def test_issue_800_default_size_many_windows(
         assert callable(builder.session.kill)
         builder.session.kill()
 
-        with pytest.raises(libtmux.exc.LibTmuxException, match="no space for new pane"):
+        # tmux 3.7 reworded this error from "no space for new pane" to
+        # "size or position no space for a new pane"; the optional "a "
+        # matches both wordings.
+        with pytest.raises(
+            libtmux.exc.LibTmuxException,
+            match=r"no space for (a )?new pane",
+        ):
             builder.build()
         return
 

diff --git a/uv.lock b/uv.lock