Release note

[ci skip]

Author: brandonkelly

CHANGELOG-WIP.md

@@ -139,6 +139,7 @@
 - Improved element index performance. ([#17557](https://github.com/craftcms/cms/pull/17557))
 - Improved element query performance. ([#17850](https://github.com/craftcms/cms/pull/17850))
 - Reduced the number of queries executed when working with nested entries, addresses, and content blocks. ([#18142](https://github.com/craftcms/cms/issues/18142))
+- Session-based cookies no longer use colons (`:`) in their names. ([#18158](https://github.com/craftcms/cms/pull/18158))
 - Fixed a bug where elements with unsaved changes could show outdated attribute/field values within element index tables, chips, and cards throughout the control panel. ([#17915](https://github.com/craftcms/cms/pull/17915))
 - Fixed a bug where Table fields with the “Static Rows” setting enabled would lose track of which values belonged to which row headings, if the “Default Values” table was reordered. ([#17090](https://github.com/craftcms/cms/issues/17090))
 - Fixed a bug where requests with invalid tokens would throw an exception before the application was fully initialized, which could lead to other errors. ([#18000](https://github.com/craftcms/cms/issues/18000))