Update CHANGELOG.md

Paddy · web-flow · commit 0e71dce1989a · 2021-04-23T10:58:19.000-07:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
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+# 2.6.1 (Unreleased)
+
+* Updated the GPG key used to verify Terraform installs in response to the [Terraform GPG key rotation](https://discuss.hashicorp.com/t/hcsec-2021-12-codecov-security-event-and-hashicorp-gpg-key-exposure/23512). [GH-750]
+
 # 2.6.0 (April 21, 2021)
 
 ENHANCEMENTS:
