docs: 3.13.0b1 is supported

Author: nedbat

CHANGES.rst

@@ -26,6 +26,8 @@ Unreleased
 - In the HTML report, the filter term and "hide covered" checkbox settings are
   remembered between viewings, thanks to `Daniel Diniz <pull 1776_>`_.
 
+- Python 3.13.0b1 is supported.
+
 
 .. _pull 1776: https://github.com/nedbat/coveragepy/pull/1776
 

README.rst

@@ -25,7 +25,7 @@ Coverage.py runs on these versions of Python:
 
 .. PYVERSIONS
 
-* Python 3.8 through 3.12, and 3.13.0a6 and up.
+* Python 3.8 through 3.12, and 3.13.0b1 and up.
 * PyPy3 versions 3.8 through 3.10.
 
 Documentation is on `Read the Docs`_.  Code repository and issue tracker are on

doc/index.rst

@@ -18,7 +18,7 @@ supported on:
 
 .. PYVERSIONS
 
-* Python 3.8 through 3.12, and 3.13.0a6 and up.
+* Python 3.8 through 3.12, and 3.13.0b1 and up.
 * PyPy3 versions 3.8 through 3.10.
 
 .. ifconfig:: prerelease