Hello

• Program: Authoritative
• Issue type: Bug report

Short description

issuing a notify via API, without changes in Zone, results in: notify from x.x.x.x: no serial

Environment

• Operating system: Debian 13
• Software version: pdns auth 4.9.7
• Software source: Debian repo

pdns as Primary API enabled, bind9 as secondary.
Zone Metadata: TSIG-ALLOW-AXFR: used.key, SOA-EDIT-API: DEFAULT, SOA-EDIT-API: used.key

Steps to reproduce

1. trigger a notification via API call without prior changes in zone:

curl -X PUT  \
        https://dmgmt-api.something.de/api/v1/servers/localhost/zones/test.net/notify \
        -H 'accept: application/json' \
        -H 'X-API-Key: e4bc7f5fadfq34gde8f92eed3a5281ad' 

2. observe bind9 logs (zone_transfers):
   17-Sep-2025 07:41:54.708 xfer-in: info: zone test.net/IN/pdns.test: notify from 10.245.16.41#12531: no serial

Expected behaviour

have notification included actual Zone serial number.

Actual behaviour

no serial number

Regards,
Grady