Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.1.0 - 2026-09-05

Added optional post-update BIND journal synchronization through rndc sync -clean.
Added DYNDNS_RNDC_SERVER, DYNDNS_RNDC_KEY, and DYNDNS_RNDC_SYNC_CLEAN configuration parameters.
Added validation for the RNDC synchronization switch and required RNDC settings when synchronization is enabled.
Added conditional runtime validation for the rndc command when post-update journal synchronization is enabled.
Added nsupdate diagnostic output to the dynDNS log and preservation of failed update instructions for troubleshooting.

Separated RFC 2136 update settings from BIND RNDC control settings.
Updated dynamic update processing to target the authoritative DNS listener instead of a non-authoritative localhost resolver view.
Changed the post-update workflow to synchronize accepted dynamic updates into the primary zone file and clean BIND journal files when explicitly enabled.
Made RNDC synchronization failures non-fatal after a successful nsupdate transaction, while retaining a warning in the dynDNS log.

Removed unsafe DNSSEC handling that attempted to delete the zone DNSKEY RRset before dynamic updates.
Removed the unnecessary rndc freeze and rndc thaw workflow after RFC 2136 updates.

Added a POSIX-compliant dynDNS management script for database-backed hostname lifecycle operations and DNS zone updates.
Added the commands add-hostname, check-hostname, remove-hostname, and update-zone.
Added hostname validation as well as subdomain and domain extraction helpers.
Added database helper functions for SQL execution, scalar queries, and SQL string escaping.
Added member provisioning in the database, including related records in members, connections, and login_attempts.
Added salted SHA-512 password hashing for stored member credentials.
Added runtime checks for required commands, directories, files, and environment variables.
Added structured logging, temporary file handling, and cleanup helpers.
Added dynamic DNS zone synchronization by comparing database records with the current zone file.
Added DNS update generation and application through nsupdate, including rndc freeze and thaw handling.

Implemented hostname removal with automatic detection of foreign keys using ON DELETE CASCADE.
Added a compatibility fallback for explicit child-table deletion when cascading foreign keys are not available.

Fixed hostname removal compatibility across different database schema states by supporting both cascading and non-cascading delete paths.