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Release Date: July 30th, 2026 pgstream v1.3.0 is a small minor release. It validates and documents running both the snapshot and the replication phases against a physical read replica instead of the primary, and fixes an encoding bug that turned empty strings into null bytes. No migration is required.

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Snapshot and Stream From a Read Replica

PR #1049, by @tsg. Running pgstream against a physical streaming replica keeps the load — and the long-running transaction a snapshot holds — off the primary. This release adds integration test coverage for that setup and a guide covering what it requires: PostgreSQL 16 or later, wal_level = logical on both the primary and the replica (the replica does not inherit it), hot_standby_feedback = on, the wal2json plugin installed on the replica’s host, and a single-instance endpoint rather than a load-balanced reader. See Running pgstream from a read replica for the full setup.

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Bug Fixes

  • Empty strings are no longer encoded as null bytes (PR #1051), by @tsg.

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Upgrade

No configuration changes are required. Replace the binary and restart pgstream.

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