# Notes for BIND 9.15.7

## Feature Changes

- The `dnssec-keys` configuration statement, which was introduced in 9.15.1 and revised in 9.15.6, has now been renamed to the more descriptive `trust-anchors`. [GL !2702]

  (See release notes for and for prior discussion of this feature.)

- Added support for multithreaded listening for TCP connections in the network manager. [GL !2659]

## Bug Fixes

- Fixed a bug that caused `named` to leak memory on reconfiguration when any GeoIP2 database was in use. [GL #1445]

- Fixed several possible race conditions discovered by ThreadSanitizer.