Merge pull request #5390 from plotly/release-6.4.0

Version changes for v6.4.0

Author: camdecoster

CHANGELOG.md

@@ -4,6 +4,16 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+## [6.4.0] - 2025-11-02
+
+### Updated
+- Update plotly.js from version 3.1.1 to version 3.2.0. See the plotly.js [release notes](https://github.com/plotly/plotly.js/releases) for more information. [[#5357](https://github.com/plotly/plotly.py/pull/5388)]. Notable changes include:
+  - Add `hovertemplatefallback` and `texttemplatefallback` attributes [[#7577](https://github.com/plotly/plotly.js/pull/7577)]
+  - Add "SI extended" formatting rule for tick exponents on axis labels, allowing values to be displayed with extended SI prefixes (e.g., femto, pico, atto) [[#7249](https://github.com/plotly/plotly.js/pull/7249)]
+
+### Deprecated
+- Deprecate `create_hexbin_mapbox` in favor of `create_hexbin_map`, update related function calls [[5358](https://github.com/plotly/plotly.py/pull/5358)], with thanks to @ajlien for the contribution!
+
 ## [6.3.1] - 2025-10-02
 
 ### Updated

CITATION.cff

@@ -9,8 +9,7 @@ authors:
 - family-names: "Parmer"
   given-names: "Chris"
 title: "An interactive, open-source, and browser-based graphing library for Python"
-version: 6.3.1
+version: 6.4.0
 doi: 10.5281/zenodo.14503524
-date-released: 2025-10-02
+date-released: 2025-11-02
 url: "https://github.com/plotly/plotly.py"
-

pyproject.toml

@@ -32,7 +32,7 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 license = {file="LICENSE.txt"}
-version = "6.3.1"
+version = "6.4.0"
 dependencies = [
     "narwhals>=1.15.1",
     "packaging"