Document breaking change in release 2.26.2

Removed support for parsing [[-style links in alert messages, replacing it with $@ placeholder pairs.

Author: oscarsj

CHANGELOG.md

@@ -16,6 +16,11 @@
      checklist for a CLI release, you can edit here. But then
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+## Release 2.26.2 (2026-07-23)
+
+### Breaking Changes
+
+- Removed support for parsing `[[`-style links in alert messages. This was an undocumented legacy feature that allowed query authors to embed links inline in select clause message strings using `[["text"|"url"]]` syntax. Queries should use `$@` placeholder pairs instead.
 
 ## Release 2.26.1 (2026-07-15)