Pull over release documents from 0.4.x

releases/0.4.3.md

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+# pict-rs 0.4.3
+
+## Overview
+
+pict-rs 0.4.3 contains a single new feature and a few dependency upgrades. The primary motivation
+for publishing this release is to produce new docker images containing the libwebp CVE fix released
+within the last few days.
+
+### Features
+
+- [External Validation](#external-validation)
+
+
+## Upgrade Notes
+
+There's no significant changes from 0.4.2, so upgrading should be as simple as pulling a new version
+of pict-rs.
+
+
+## Descriptions
+
+### External Validation
+
+There is a new config option in the `[media]` section called `external_validation`. This setting
+exists to allow custom validation of uploaded images in pict-rs, allowing 3rd party applications to
+be developed for further filtering permitted uploads. When this value is set, pict-rs will upload
+each uploaded file after initial ingest processing to the provided URL. The `Content-Type` header is
+set to the file's media type, and the request's body is simply the uploaded file. The expected
+response is a simple 2XX for files that pass validation, and any other status code for files that do
+not (although I personally recommend a 4XX response).
+
+This new value is optional. There is no default value and no first-party application is provided for
+providing this extra validation.

releases/0.4.4.md

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+# pict-rs 0.4.4
+
+## Overview
+
+pict-rs 0.4.4 contains a configuration option and a few dependency upgrades. The primary motivation
+for publishing this release is to produce new docker images containing the libvpx CVE fix released
+within the last few days.
+
+### Features
+
+- [External Validation Timeout](#external-validation-timeout)
+
+
+### Bugfixes
+
+- [OpenTelemetry Span Disconnection](#opentelemetry-span-disconnection)
+
+
+## Upgrade Notes
+
+There's no significant changes from 0.4.3, so upgrading should be as simple as pulling a new version
+of pict-rs.
+
+
+## Descriptions
+
+### External Validation Timeout
+
+A configuration option has been added to change the HTTP Timeout for the external validation
+service. This allows letting services that might take a while to respond to be used by extending the
+timeout. The default value is 30 seconds.
+
+Examples:
+
+```toml
+# pict-rs.toml
+[media]
+external_validation = "http://validation.service/endpoint"
+external_validation_timeout = 60
+```
+
+```
+# environment variables
+PICTRS__MEDIA__EXTERNAL_VALIDATION=http://validation.service/endpoint
+PICTRS__MEDIA__EXTERNAL_VALIDATION_TIMEOUT=60
+```
+
+
+### OpenTelemetry Span Disconnection
+
+The tracing-opentelemetry dependency has been updated from 0.20 to 0.21, which includes a bugfix for
+tracing spans becoming disconnected from each other and making tracing aggregation services (such as
+Jaeger) less useful. If your setup includes an OpenTelemetry collector, this update will be
+interesting to you.