Add entry to change log

stanwest · stanwest · commit df5d034250a6 · 2022-12-09T16:45:06.000-05:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -17,6 +17,9 @@ readthedocs stuff gets all the shiny link goodness. Thanks!
 
 Unreleased (aka. GitHub master)
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+
+- In *Collapsible Headings*, get the notebook version from `sys_info` if possible, resolving an incompatibility with *notebook* versions 6.5.x [#1617](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1617).
+
 0.7.0
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