Update readme with changelog for 1.3.0.

Author: felixarntz

readme.txt

@@ -17,8 +17,8 @@ The Performance Lab plugin is a collection of modules focused on enhancing perfo
 
 Currently the plugin includes the following performance modules:
 
-* **WebP Uploads:** Creates WebP versions for new JPEG image uploads if supported by the server.
 * **Dominant Color:** Adds support to store dominant color for an image and create a placeholder background with that color.
+* **WebP Uploads:** Creates WebP versions for new JPEG image uploads if supported by the server.
 * **Audit Full Page Cache:** Adds a check for full page cache in Site Health status.
 * **WebP Support:** Adds a WebP support check in Site Health status.
 * **Audit Autoloaded Options:** Adds a check for autoloaded options in Site Health status.
@@ -68,6 +68,31 @@ Contributions welcome! There are several ways to contribute:
 
 == Changelog ==
 
+= 1.3.0 =
+
+**Enhancements**
+
+* Images: Add replacing of images only in frontend context. ([424](https://github.com/WordPress/performance/pull/424))
+* Images: Allow control for which image sizes to generate additional MIME type versions. ([415](https://github.com/WordPress/performance/pull/415))
+* Images: Discard WebP image if it is larger than corresponding JPEG image. ([418](https://github.com/WordPress/performance/pull/418))
+* Images: Optimize computing dominant color and transparency for images by combining the two functions. ([381](https://github.com/WordPress/performance/pull/381))
+* Images: Provide fallback JPEG images in frontend when WebP is not supported by the browser. ([360](https://github.com/WordPress/performance/pull/360))
+* Images: Rely on `wp_get_image_editor()` methods argument to check whether it supports dominant color methods. ([404](https://github.com/WordPress/performance/pull/404))
+* Images: Remove experimental label from Dominant Color module and turn on by default for new installs. ([425](https://github.com/WordPress/performance/pull/425))
+* Site Health: Remove `perflab_aea_get_resource_file_size()` in favor of `wp_filesize()`. ([380](https://github.com/WordPress/performance/pull/380))
+* Site Health: Update documentation link for autoloaded options. ([408](https://github.com/WordPress/performance/pull/408))
+* Infrastructure: Implement mechanism to not load module if core version is available. ([390](https://github.com/WordPress/performance/pull/390))
+
+**Bug Fixes**
+
+* Images: Ensure incorrect usage of `webp_uploads_upload_image_mime_transforms` filter is treated correctly. ([393](https://github.com/WordPress/performance/pull/393))
+* Images: Fix PHP notice and bug in logic for when `webp_uploads_prefer_smaller_image_file` filter is set to `true`. ([397](https://github.com/WordPress/performance/pull/397))
+* Images: Fix an infinite loop in the WebP fallback mechanism. ([433](https://github.com/WordPress/performance/pull/433))
+* Images: Fix dominant color upload process to not override potential third-party editors. ([401](https://github.com/WordPress/performance/pull/401))
+* Images: Remove additional image backup sources & sizes files when attachment deleted. ([411](https://github.com/WordPress/performance/pull/411))
+* Infrastructure: Avoid including .husky directory in plugin ZIP. ([421](https://github.com/WordPress/performance/pull/421))
+* Infrastructure: Do not show admin pointer in multisite Network Admin. ([394](https://github.com/WordPress/performance/pull/394))
+
 = 1.2.0 =
 
 **Features**