Publish 6.4.0rc0

SHA256 hashes:

dist/notebook-6.4.0rc0-py3-none-any.whl: 944399ed932a6d8107ecdebcdfb10fd27b2a8e52e37920ad0b6bd72ba69bdb4d

dist/notebook-6.4.0rc0.tar.gz: d93f3eb1b2e5f6bf6d9d0b3a2aa99a605f3d35470f6b10ad42d03a0aa613725a

notebook/_version.py

@@ -5,7 +5,7 @@ store the current version info of the notebook.
 import re
 
 # Version string must appear intact for tbump versioning
-__version__ = '6.4.0a1'
+__version__ = '6.4.0rc0'
 
 # Build up version_info tuple for backwards compatibility
 pattern = r'(?P<major>\d+).(?P<minor>\d+).(?P<patch>\d+)(?P<rest>.*)'

notebook/static/base/js/namespace.js

@@ -73,7 +73,7 @@ define(function(){
     // tree
     jglobal('SessionList','tree/js/sessionlist');
 
-    Jupyter.version = "6.4.0a1";
+    Jupyter.version = "6.4.0rc0";
     Jupyter._target = '_blank';
 
     return Jupyter;

pyproject.toml

@@ -14,7 +14,7 @@ before-build-python = ["pip install babel", "npm install -g po2json"]
 ignore-glob = ["docs/source/examples/Notebook/Working With Markdown Cells.ipynb", "docs-translations/**/README.md", "docs/source/contributing.rst", "docs/source/examples/Notebook/JavaScript Notebook Extensions.ipynb", "CHANGELOG.md"]
 
 [tool.tbump.version]
-current = "6.4.0a1"
+current = "6.4.0rc0"
 regex = '''
   (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)
   ((?P<channel>a|b|rc|.dev)(?P<release>\d+))?