5.4.0

CHANGES:

Added

• connection#socket_descr, which exposes the libpq socket as a
  Unix.file_descr suitable for readiness-based waiting without Obj.magic.

Changed

• Updated asynchronous and notification examples to use socket_descr instead
  of coercing socket with Obj.magic.

Fixed

• string_of_error now normalizes trailing newlines in backend-provided error
  messages and avoids odd punctuation for empty Unexpected_status details.

5.3.2

CHANGES:

Fixed

• Enable binary results for parameterless queries by calling PQsendQueryParams
  when binary_result is requested (instead of PQsendQuery). Thanks to Alain
  Frisch for the patch.

5.3.1

CHANGES:

Fixed

• getvalue and get_escaped_value now return Postgresql.null for SQL NULL
  values, matching the documentation. Thanks to Christophe Raffalli for the
  patch.

Changed

• Applied OCaml/C formatting and added an ocamlformat pre-commit hook.

5.3.0

CHANGES:

Added

• Connection functor that allows for custom mutex implementations. This
  improves compatibility with effect-based concurrency frameworks and helps
  prevent deadlocks.
• Makefile target to generate compile_commands.json for improved LSP support
  in editors.
• Version discovery supports PostgreSQL beta/rc versions (via pg_config and
  pkg-config). Thanks to Antonio Nuno Monteiro for the patch.

Changed

• Improved thread coordination during cancellation of operations.
• Removed the use of C stubs to check for a finished connection.
• Replaced custom resource management logic with Fun.protect.

Thanks to Christophe Raffalli for contributing solutions for the improved thread
coordination and for effect-based concurrency frameworks.

5.2.0

CHANGES:

Added

• binary_result to send_query and send_query_prepared. Thanks to
  Christophe Raffalli for the contribution.
• pre-commit configuration and GitHub workflow.

5.1.3

CHANGES:

• Fixed cross-compilation in discover process.

  Thanks to Antonio Nuno Monteiro for the patch.

5.1.2

CHANGES:

• Fixed version discovery with pkg-config.
• Removed obsolete base-bytes dependency.
• Switched to ocamlformat 0.27.0.
• Fixed macro naming and instantiation formatting.
• Fixed copyright notices.
• Improved GitHub workflow.

5.1.1

CHANGES:

• Fixed a rare, architecture-specific GC bug in lo_seek.

5.1.0

CHANGES:

• Made Postgresql.null a now unique, empty string.

• Fixed license format and a typo.

• Fixed some odoc references.

• Added GitHub workflows.

• Added automatic formatting with ocamlformat and clang-format.

• Ported the config discovery script to pkg-config

  Thanks to Antonio Nuno Monteiro for the patch.

• Improved Dune rules.

• Used new OCaml 4.12 C-macros.

• Switched to Dune lang 2.7.

5.0.0

CHANGES:

• Added support for parameter types to exec, prepare, send_query,
  and send_prepare.

  Thanks to Petter A. Urkedal for the patch!