Release preparation for version 2.8.0

cpp/ql/src/change-notes/released/0.0.8.md

@@ -0,0 +1,18 @@
+## 0.0.8
+
+### New Queries
+
+* The `security` tag has been added to the `cpp/return-stack-allocated-memory` query. As a result, its results will now appear by default.
+* The "Uncontrolled data in arithmetic expression" (cpp/uncontrolled-arithmetic) query has been enhanced to reduce false positive results and its @precision increased to high.
+* A new `cpp/very-likely-overruning-write` query has been added to the default query suite for C/C++. The query reports some results that were formerly flagged by `cpp/overruning-write`.
+
+### Minor Analysis Improvements
+
+* Fix an issue with the `cpp/declaration-hides-variable` query where it would report variables that are unnamed in a database.
+* The `cpp/cleartext-storage-file` query has been upgraded with non-local taint flow and has been converted to a `path-problem` query.
+* The `cpp/return-stack-allocated-memory` query has been improved to produce fewer false positives. The
+  query has also been converted to a `path-problem` query.
+* The "Cleartext transmission of sensitive information" (`cpp/cleartext-transmission`) query has been improved in several ways to reduce false positive results.
+* The "Potential improper null termination" (`cpp/improper-null-termination`) query now produces fewer false positive results around control flow branches and loops.
+* Added exception for GLib's gboolean to cpp/ambiguously-signed-bit-field.
+  This change reduces the number of false positives in the query.