diff --git a/CHANGES b/CHANGES
index 1df7b6cc2a..35e90e910a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -36,7 +36,7 @@ Run the developmental install with:
 $ tmuxp@next load yoursession
 ```
 
-## tmuxp 1.70.0 (Yet to be released)
+## tmuxp 1.71.0 (Yet to be released)
 
 <!-- To maintainers and contributors: Please add notes for the forthcoming version below -->
 
@@ -44,6 +44,20 @@ $ tmuxp@next load yoursession
 _Notes on the upcoming release will go here._
 <!-- END PLACEHOLDER - ADD NEW CHANGELOG ENTRIES BELOW THIS LINE -->
 
+## tmuxp 1.70.0 (2026-05-23)
+
+tmuxp 1.70.0 bumps libtmux to 0.58.0, fixing session and window listing on systems whose locale is not UTF-8.
+
+### Dependencies
+
+#### Minimum `libtmux~=0.58.0` (was `~=0.57.1`) (#1045)
+
+### Fixes
+
+#### Non-UTF-8 locale decoding (#1045)
+
+Session and window listing could silently return empty results when the system locale was not UTF-8. Fixed by the libtmux 0.58.0 floor bump.
+
 ## tmuxp 1.69.0 (2026-05-23)
 
 tmuxp 1.69.0 is a libtmux that expands functionality of `tmuxp shell` under the hood.
diff --git a/pyproject.toml b/pyproject.toml
index 026567fb26..c73284cb0e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "tmuxp"
-version = "1.69.0"
+version = "1.70.0"
 description = "Session manager for tmux, which allows users to save and load tmux sessions through simple configuration files."
 requires-python = ">=3.10,<4.0"
 authors = [
@@ -39,7 +39,7 @@ include = [
   { path = "conftest.py", format = "sdist" },
 ]
 dependencies = [
-  "libtmux~=0.57.1",
+  "libtmux~=0.58.0",
   "PyYAML>=6.0"
 ]
 
diff --git a/src/tmuxp/__about__.py b/src/tmuxp/__about__.py
index 958fef6059..06e39e62f3 100644
--- a/src/tmuxp/__about__.py
+++ b/src/tmuxp/__about__.py
@@ -8,7 +8,7 @@
 
 __title__ = "tmuxp"
 __package_name__ = "tmuxp"
-__version__ = "1.69.0"
+__version__ = "1.70.0"
 __description__ = "tmux session manager"
 __email__ = "tony@git-pull.com"
 __author__ = "Tony Narlock"
diff --git a/uv.lock b/uv.lock
index 4bb63b1081..e233021ab6 100644
--- a/uv.lock
+++ b/uv.lock
@@ -617,11 +617,11 @@ wheels = [
 
 [[package]]
 name = "libtmux"
-version = "0.57.1"
+version = "0.58.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/da/42/790280a61c8c49a15b3213614f52d0a4f79ec913e9520d35096b1bcb28f2/libtmux-0.57.1.tar.gz", hash = "sha256:c216671a066d06e093d7a8e806d0b7467e5f7edfe08742686de33073e1f9cf2a", size = 518481, upload-time = "2026-05-18T22:35:45.591Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/65/4e/daccd4fd72ad3f17b8fb97f69403774d6c510b5d513521b454fdaedb0561/libtmux-0.58.0.tar.gz", hash = "sha256:abbe330bec2c45687a4bf417ee436373b37046afe123ba547495ee0448e1145a", size = 522080, upload-time = "2026-05-23T16:03:38.566Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/fe/4b/42768db9ef24ee1c9b95f3feb782c3b45afb1227a4b432af71096b970246/libtmux-0.57.1-py3-none-any.whl", hash = "sha256:8f1bb904476e209831c61c9e58814f52e01c0877ef1080e550566db75bee9a2a", size = 113650, upload-time = "2026-05-18T22:35:43.903Z" },
+    { url = "https://files.pythonhosted.org/packages/49/d5/1cee7c13865d0d55ddb54709aaf85e0dc645e2998ce85ffce2c36d3bf08d/libtmux-0.58.0-py3-none-any.whl", hash = "sha256:1aec9875983a8eb121a8de7be7dffa6b97d9754c013ce960944d058764e47ec3", size = 113680, upload-time = "2026-05-23T16:03:37.049Z" },
 ]
 
 [[package]]
@@ -1608,7 +1608,7 @@ wheels = [
 
 [[package]]
 name = "tmuxp"
-version = "1.69.0"
+version = "1.70.0"
 source = { editable = "." }
 dependencies = [
     { name = "libtmux" },
@@ -1670,7 +1670,7 @@ testing = [
 
 [package.metadata]
 requires-dist = [
-    { name = "libtmux", specifier = "~=0.57.1" },
+    { name = "libtmux", specifier = "~=0.58.0" },
     { name = "pyyaml", specifier = ">=6.0" },
 ]