Reliable PostgreSQL Backup & Restore Files

Bug Fixes:

• Fix block incremental restore issue on non-default repository. (Reviewed by David Christensen, Aleksander Łukasz. Reported by Aleksander Łukasz.)
• Do not set recovery_target_timeline=current for PostgreSQL < 12. (Reviewed by Stefan Fercot.)
• Fix expire archive range logging. (Reviewed by Stefan Fercot. Reported by Aleš Zelený.)
• Fix error reporting for queries with no results. (Reviewed by Stefan Fercot. Reported by Susantha Bathige.)

Features:

• Verify recovery target timeline. (Reviewed by Stefan Fercot.)
• Allow verification of a specified backup. (Contributed by Maxim Michkov. Reviewed by David Steele.)
• Add support for S3/GCS requester pays. (Contributed by Timothée Peignier. Reviewed by David Steele.)
• PostgreSQL 18 experimental support. (Reviewed by Stefan Fercot.)
• Allow connections to PostgreSQL on abstract domain sockets. (Reviewed by Chris Bandy. Suggested by Chris Bandy.)
• Add numeric output to version command. (Contributed by Stefan Fercot. Reviewed by David Steele.)

Improvements:

• Allow backup command to operate on remote repositories. (Reviewed by Stefan Fercot.)
• Use lz4 for protocol compression. (Reviewed by Stefan Fercot.)
• Calculate content-md5 on S3 only when required. (Reviewed by David Christensen.)
• Warn when a value for a multi-key option is overwritten. (Reviewed by David Christensen, Stefan Fercot.)
• Add detail logging for expired archive path. (Contributed by Stefan Fercot. Reviewed by David Steele.)
• Remove support for PostgreSQL 9.4. (Reviewed by Stefan Fercot.)
• Remove autoconf/make build. (Reviewed by David Christensen.)

Documentation Improvements:

• Fix documentation for specifying multiple stanzas with tls-server-auth. (Reviewed by David Christensen, Stefan Fercot. Suggested by Terry MacAndrew.)
• Clarify incremental backup expiration. (Reviewed by Stefan Fercot.)
• Clarify requirement for local/remote pgBackRest versions to match. (Contributed by Greg Clough. Reviewed by David Steele.)
• Add FAQ about exporting self-contained cluster. (Contributed by Stefan Fercot. Reviewed by David Steele.)
• Caveat --tablespace-map-all regarding tablespace creation. (Reviewed by Stefan Fercot, Christophe Courtois. Suggested by Christophe Courtois.)
• Clarify behavior of --repo-retention-full-type. (Reviewed by Antoine Beaupré. Suggested by Antoine Beaupré.)
• Change --process-max recommendation for object stores to --repo-bundle. (Reviewed by Stefan Fercot.)
• Update unix_socket_directory to unix_socket_directories. (Contributed by hyunkyu han. Reviewed by David Steele.)
• Recommend not placing spool-path within pg_xlog/pg_wal. (Reviewed by Martín Marqués, Don Seiler. Suggested by Martín Marqués.)