v0.3.6

What's Changed

Added

• Security hardening for the repository and release pipeline:
  • Dependabot (.github/dependabot.yml): weekly automated PRs for Python dependency and GitHub Actions updates; minor and patch updates grouped to reduce noise.
  • CodeQL (.github/workflows/codeql.yml): SAST scanning on every push, PR, and weekly schedule; results surface in the GitHub Security tab.
  • Dependency vulnerability scanning (.github/workflows/security.yml): pip-audit checks all locked dependencies against OSV/PyPI advisory databases on push, PR, and weekly.
  • Publish gate (publish.yml): pip-audit now runs before every PyPI release; a known-vulnerable dependency blocks the publish job.
  • Secret detection (.pre-commit-config.yaml): detect-secrets pre-commit hook blocks commits containing hard-coded credentials.
  • SECURITY.md: published security policy with private vulnerability reporting instructions and scope definition.
• Updated idna (transitive dependency via httpx) from 3.11 to 3.18 to address PYSEC-2026-215, a DoS vulnerability in idna.encode() for arbitrarily large inputs.

v0.3.5

Changed

• Modernized type hints to Python 3.10+ syntax throughout: Optional[X] to X | None, Union[X, Y] to X | Y, List[X] to list[X], Dict[K, V] to dict[K, V]. AsyncGenerator, Callable, and Awaitable moved from typing to collections.abc. No functional changes.
• Added target-version = "py310" and the UP ruleset to ruff config, enforcing the modernized syntax going forward.

v0.3.4

Migrate pyproject.toml package metadata from the legacy [tool.poetry] table to the PEP 621 [project] table. No functional or API changes — the package installs and behaves identically. Passes poetry check --strict.

v0.3.3

Add PEP 561 py.typed marker so type checkers in downstream projects pick up the package's inline annotations. Syncs Python 3.13/3.14 and Typing :: Typed trove classifiers to match CI.

v0.3.2

What's Changed

• chore: update dev tooling and sync pre-commit with dependencies by @purificant in #9

Full Changelog: v0.3.1...v0.3.2

v0.3.1

What's Changed

• Gunicorn and Odoo... we got you. Sync wrapper now fork-safe, thanks to @yibudak 's keen eye. #8

New Contributors

• @yibudak made their first contribution in #8

Full Changelog: v0.3.0...v0.3.1

v0.3.0

What's New

Synchronous Client (new in v0.3.0)

SyncServerClient and SyncAccountClient are now available via postmark.sync. Use them in scripts, Flask apps, and Jupyter notebooks — no async/await required. A single background thread with a persistent event loop handles all calls; HTTP connection pooling is retained for performance.

import postmark

with postmark.sync.ServerClient(token) as client:
    response = client.outbound.send({...})

Other Changes

• Examples reorganized into examples/async/ and examples/sync/ with parallel coverage
• New examples: send_sync_simple.py, send_sync_batch.py
• 31 new tests for sync client behavior (tests/test_sync_client.py)

Full Changelog: v0.2.5...v0.3.0

v0.2.5

What's Changed

• update test workflow for modern python and github actions by @purificant in #3
• chore: upgrade httpx to 0.28.1 by @mulka in #5

New Contributors

• @purificant made their first contribution in #3
• @mulka made their first contribution in #5

Thank you both!

Full Changelog: v0.2.4...v0.2.5

v0.2.4

This is a patch release with one fix for the PyPI project page.

Fixed
The Postmark Python SDK logo was broken on the PyPI project page due to a relative image path in the README. It now uses an absolute URL and renders correctly.

Full changelog: 0.2.3 → 0.2.4

v0.2.0

[0.2.0] - 2026-03-06

Added

• User-Agent header sent on every request in the format Postmark.PY - {version} (Python/{major}.{minor}.{micro}).
• X-Request-Id from Postmark responses is now stored as request_id on all PostmarkAPIException subclasses and included in the exception __str__ output when present — enabling direct support escalations.
• request_id included in structured log records for both successful requests and API errors.
• Structured extra={} fields on all log calls (method, endpoint, status_code, duration_ms, error_code, postmark_message, request_id) for compatibility with Datadog, Splunk, and other log aggregators.
• duration_ms timing on every request log record (success, error, and timeout).

Changed

• Upgraded pytest-asyncio to ^1.0.0 and set asyncio_mode = "auto" to eliminate deprecation warnings on Python 3.12+.