Instead of deleting items from the database, flag them as deleted in the item's `Lightning Stream <https://doc.powerdns.com/lightningstream>`_ header.
Only enable this if you are using Lightning Stream.
+.. _setting-lmdb-write-notification-update:
+
``lmdb-write-notification-update``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Changelogs for 4.9.x
====================
+.. changelog::
+ :version: 4.9.9
+ :released: 24th of September 2025
+
+ This is release 4.9.9 of the Authoritative Server.
+ It contains a minor feature and a few fixes.
+
+ Please review the :doc:`Upgrade Notes <../upgrading>` before upgrading from versions < 4.9.x.
+
+ .. change::
+ :tags:
+ :pullreq: 16158
+
+ memory corruption in ODBC plus tweaks to appease coverity
+
+ .. change::
+ :tags:
+ :pullreq: 16157
+
+ Fix EDNS Cookie & Proxy protocol
+
+ .. change::
+ :tags:
+ :pullreq: 16154
+
+ lmdb: optional memory-only notification timestamps (:ref:`setting-lmdb-write-notification-update`)
+
.. changelog::
:version: 4.9.8
:released: 7th of August 2025
-@ 86400 IN SOA pdns-public-ns1.powerdns.com. peter\.van\.dijk.powerdns.com. 2025091800 10800 3600 604800 10800
+@ 86400 IN SOA pdns-public-ns1.powerdns.com. peter\.van\.dijk.powerdns.com. 2025092400 10800 3600 604800 10800
@ 3600 IN NS pdns-public-ns1.powerdns.com.
@ 3600 IN NS pdns-public-ns2.powerdns.com.
auth-4.9.6.security-status 60 IN TXT "1 OK (never formally released)"
auth-4.9.7.security-status 60 IN TXT "1 OK"
auth-4.9.8.security-status 60 IN TXT "1 OK"
+auth-4.9.9.security-status 60 IN TXT "1 OK"
auth-5.0.0-alpha1.security-status 60 IN TXT "2 Unsupported pre-release (no known vulnerabilities)"
auth-5.0.0-beta1.security-status 60 IN TXT "2 Unsupported pre-release (no known vulnerabilities)"
auth-5.0.0.security-status 60 IN TXT "1 OK"