== Changelog ==

= 2.1.5 =

_Release date: 2026-06-09_

**Added**

* Runtime check at initialization: if the parent SMTP (by ROBOTSTXT) plugin is missing or inactive, the plugin skips initialization and displays an admin notice instead of producing a fatal error.

**Fixed**

* Credentials never saving on first entry: credential validation now only blocks saving for definitive authentication failures (InvalidClientTokenId, SignatureDoesNotMatch, InvalidAccessKeyId). All other AWS errors — wrong region, missing IAM permission, SES not enabled in region, network timeouts — allow saving so the user is not locked out.
* Reply-to email field cannot be cleared: submitting an empty value now explicitly removes the stored address. The parent plugin preserves the existing value when empty is submitted; this filter corrects that behavior.

**Compatibility**

* WordPress: 5.7 - 7.1
* PHP: 8.2 - 8.5

**Tests**

* PHP_CodeSniffer: 3.13.5
* WordPress Coding Standards: 3.3.0
* PHPCompatibility: 9.3.5
* PHPStan: 2.2.2

= 2.1.4 =

_Release date: 2026-06-09_

**Changed**

* Minimum WordPress version lowered from 6.5 to 5.7. The plugin code only uses APIs available since WordPress 5.7 (the `pre_wp_mail` filter), verified by static analysis with wp-compat. Note: on WordPress 5.7–6.4, the `Requires Plugins` dependency header is not enforced by the platform.

**Compatibility**

* WordPress: 5.7 - 7.1
* PHP: 8.2 - 8.5

**Tests**

* PHP_CodeSniffer: 3.13.5
* WordPress Coding Standards: 3.3.0
* PHPCompatibility: 9.3.5
* PHPStan: 2.2.2

= 2.1.3 =

_Release date: 2026-06-09_

**Fixed**

* Nonce handling in manual quota refresh now correctly handles `false` values returned by `filter_input()`.
* Admin notices display now skips non-array notice entries.
* Input normalization for recipients, attachments, and headers now properly skips non-string values instead of attempting unsafe casts.

**Changed**

* Removed unused internal rate limit application method.

**Compatibility**

* WordPress: 5.7 - 7.1
* PHP: 8.2 - 8.5

**Tests**

* PHP_CodeSniffer: 3.13.5
* WordPress Coding Standards: 3.3.0
* PHPCompatibility: 9.3.5
* PHPStan: 2.2.2

= 2.1.2 =

_Release date: 2026-02-12_

**Fixed**

* Charset encoding issue that caused "expected parameter value, got null" error when sending emails through Amazon SES.
* Charset validation in header parsing now prevents empty or invalid charset values.
* Charset handling falls back to UTF-8 when no valid charset is provided.

**Compatibility**

* WordPress: 6.5 - 6.9
* PHP: 8.2 - 8.4

= 2.1.1 =

_Release date: 2026-02-09_

**Added**

* Comprehensive Amazon SES debug context to test email error reports: AWS region, masked access key, SDK version, endpoint URL, and UTC timestamp.
* Enhanced AWS error reporting with request IDs, HTTP status codes, and error codes for easier troubleshooting.

**Security**

* Access keys are now masked in error output, showing only the first and last 4 characters.

**Compatibility**

* WordPress: 6.5 - 6.9
* PHP: 8.2 - 8.4

= 2.1.0 =

_Release date: 2026-02-09_

**Changed**

* Uninstall behavior: the add-on no longer performs cleanup on its own uninstall. All data cleanup — including Amazon SES credentials — is now handled by the core SMTP plugin when it is uninstalled. This ensures credentials are preserved if only the add-on is removed.

**Compatibility**

* WordPress: 6.5 - 6.9
* PHP: 8.2 - 8.4

= 2.0.1 =

_Release date: 2026-01-30_

**Changed**

* Maintenance release with minor internal fixes.

**Compatibility**

* WordPress: 6.5 - 6.9
* PHP: 8.2 - 8.4

= 2.0.0 =

_Release date: 2026-01-29_

**Added**

* Reply-To header support for emails sent through Amazon SES.

**Changed**

* Minimum PHP version increased to 8.2. Required by the AWS SDK for PHP.
* Updated AWS SDK for PHP to version 3.369.20 with security patches.

**Compatibility**

* WordPress: 6.5 - 6.9
* PHP: 8.2 - 8.4

= 1.0.0 =

_Release date: 2026-01-27_

**Highlights**

* Initial release.

**Added**

* Amazon SES credential management (IAM access key, secret key, region) inside the SMTP plugin settings.
* Live credential validation on save via the `GetAccount` API call.
* Region selector with automatic discovery of all SES-enabled AWS endpoints.
* Routes WordPress mail and SMTP test emails through Amazon SES whenever credentials are configured.
* AWS SDK for PHP v3 bundled as a Composer dependency.

**Compatibility**

* WordPress: 6.5 - 6.8
* PHP: 8.2 - 8.3