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lettermint/lettermint-php

Official Lettermint PHP SDK.

v2.4.0 160K downloads/mo #4660 most downloaded on Packagist lettermint/lettermint-php

What this package is like to depend on

Last release 4 days ago

19 Aug 2026

Ships fairly regularly

a new release about every 6 weeks

Most releases are documented

notes for 14 of 18 stable releases

Nothing withdrawn

no release was ever pulled

1 years old

18 releases · first in 2025

9 releases in the last 12 months

see the full history below

Release timeline

18 releases · Apr 2025 to Aug 2026
2026
Release Pre-release

Releases

latest 18
  1. v2.4.0 19 Aug 2026
    Release notes

    What's Changed

    • feat(api): support message tags and disposable email suppression by @bjarn in #29

    Full Changelog: 2.3.0...v2.4.0

    Open source →
  2. 2.3.0 13 Aug 2026
    Release notes

    What's Changed

    • feat(api): add team RBAC, TLS email settings, and batch idempotency by @bjarn in #28

    Full Changelog: 2.2.0...2.3.0

    Open source →
  3. 2.2.0 07 Jul 2026
    Release notes

    What's Changed

    • chore(deps): bump actions/checkout from 6 to 7 by @dependabot[bot] in #26
    • feat: add route settings, webhook auto-reply events, and blocked file types by @bjarn in #27

    Full Changelog: 2.1.0...2.2.0

    Open source →
  4. 2.1.0 13 Jun 2026
    Release notes

    What's Changed

    • Delete .github/workflows/dependabot-auto-merge.yml by @bjarn in #24
    • Make HTTP client timeout configurable by @heikokrebs in #25

    New Contributors

    Full Changelog: 2.0.0...2.1.0

    Open source →
  5. 2.0.0 10 May 2026
    Release notes

    What's Changed

    • chore: add Discord badge to README by @bjarn in #15
    • chore(deps): bump dependabot/fetch-metadata from 2.4.0 to 2.5.0 by @dependabot[bot] in #16
    • chore(deps): bump ramsey/composer-install from 3 to 4 by @dependabot[bot] in #17
    • chore(deps): bump dependabot/fetch-metadata from 2.5.0 to 3.0.0 by @dependabot[bot] in #19
    • feat: add PHPStan type annotations to improve type safety by @bjarn in #20
    • chore(deps): bump dependabot/fetch-metadata from 3.0.0 to 3.1.0 by @dependabot[bot] in #21
    • chore: update company name in LICENSE by @bjarn in #23
    • feat: add Team API endpoints by @bjarn in #22

    Full Changelog: 1.5.1...2.0.0

    Open source →
  6. 1.5.1 23 Dec 2025
    Release notes

    What's Changed

    • feat: add custom User-Agent header to HttpClient by @bjarn in #14

    Full Changelog: 1.5.0...1.5.1

    Open source →
    Release notes

    What's Changed

    • feat: add custom User-Agent header to HttpClient by @bjarn in https://github.com/lettermint/lettermint-php/pull/14

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.5.0...1.5.1

    Open source →
  7. 1.5.0 27 Nov 2025
    Release notes

    What's Changed

    • feat: add webhook signature verification support by @bjarn in #13

    Full Changelog: 1.4.1...1.5.0

    Open source →
    Release notes

    What's Changed

    • feat: add webhook signature verification support by @bjarn in https://github.com/lettermint/lettermint-php/pull/13

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.4.1...1.5.0

    Open source →
  8. 1.4.1 24 Nov 2025
    Release notes

    Security

    • feat(send): clear payload and idempotency key after sending by @Bjornftw in #12
      Fixed an issue where the internal payload was not fully cleared between sequential send calls when reusing the same client instance.
      In some cases, when sending multiple emails with attachments, attachments from a previous email could unintentionally be included in a subsequent email by the same sender.
      • Affected: users of the PHP SDK who send multiple emails using the same client instance and use attachments. This does not introduce cross-account issues.
      • Recommendation: upgrade to v1.4.1 if you send attachments via this SDK

    What's Changed

    • chore(deps): bump stefanzweifel/git-auto-commit-action from 6 to 7 by @dependabot[bot] in #10
    • chore(deps): bump actions/checkout from 3 to 6 by @dependabot[bot] in #11

    Full Changelog: 1.4.0...1.4.1

    Open source →
    Release notes

    What's Changed

    • chore(deps): bump stefanzweifel/git-auto-commit-action from 6 to 7 by @dependabot[bot] in https://github.com/lettermint/lettermint-php/pull/10
    • chore(deps): bump actions/checkout from 3 to 6 by @dependabot[bot] in https://github.com/lettermint/lettermint-php/pull/11
    • feat(send): clear payload and idempotency key after sending by @Bjornftw in https://github.com/lettermint/lettermint-php/pull/12

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.4.0...1.4.1

    Open source →
  9. 1.4.0 07 Oct 2025
    Release notes

    What's Changed

    • feat: add inline attachment support to EmailEndpoint by @bjarn in #8
    • chore(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in #7

    Full Changelog: 1.3.0...1.4.0

    Open source →
    Release notes

    What's Changed

    • feat: add inline attachment support to EmailEndpoint by @bjarn in https://github.com/lettermint/lettermint-php/pull/8
    • chore(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in https://github.com/lettermint/lettermint-php/pull/7

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.3.0...1.4.0

    Open source →
  10. 1.3.0 24 Aug 2025
    Release notes

    What's Changed

    • Add tag support to EmailEndpoint by @bjarn in #6

    Full Changelog: 1.2.0...1.3.0

    Open source →
    Release notes

    What's Changed

    • Add tag support to EmailEndpoint by @bjarn in https://github.com/lettermint/lettermint-php/pull/6

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.2.0...1.3.0

    Open source →
  11. 1.2.0 23 Aug 2025
    Release notes

    What's Changed

    • Add metadata support for emails by @bjarn in https://github.com/lettermint/lettermint-php/pull/5

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.1.1...1.2.0

    Open source →
  12. 1.1.1 28 Jun 2025
    Release notes

    This release fixes the invalid tag of 1.1.0 - which doesn't contain the changes it should've. Sorry!

    What's Changed

    • feat: add idempotency support to EmailEndpoint by @bjarn in https://github.com/lettermint/lettermint-php/pull/4
    • chore(deps): bump stefanzweifel/git-auto-commit-action from 5 to 6 by @dependabot in https://github.com/lettermint/lettermint-php/pull/3

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.1.0...1.1.1

    Open source →
  13. 1.1.0 14 Jun 2025
    Release notes

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/1.0.0...1.1.0

    Open source →
  14. 1.0.0 14 Jun 2025
    Release notes

    What's Changed

    • chore(deps): bump dependabot/fetch-metadata from 2.3.0 to 2.4.0 by @dependabot in https://github.com/lettermint/lettermint-php/pull/1
    • feat: add route method to EmailEndpoint by @bjarn in https://github.com/lettermint/lettermint-php/pull/2

    New Contributors

    • @dependabot made their first contribution in https://github.com/lettermint/lettermint-php/pull/1
    • @bjarn made their first contribution in https://github.com/lettermint/lettermint-php/pull/2

    Full Changelog: https://github.com/lettermint/lettermint-php/compare/0.1.1...1.0.0

    Open source →
  15. 0.1.1 26 Apr 2025

    Nothing published for this version

  16. 0.1.0 25 Apr 2025

    Nothing published for this version

  17. 0.0.2 25 Apr 2025

    Nothing published for this version

  18. 0.0.1 21 Apr 2025

    Nothing published for this version

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