chore: prep v8.6.0 for release (#381)

# Description

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# Testing

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# Pull Request Type

Please select the option(s) that are relevant to this PR.

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Improvement (fixing a typo, updating readme, renaming a variable
name, etc)

Author: Justintime50

CHANGELOG.md

@@ -1,5 +1,13 @@
 # CHANGELOG
 
+## v8.6.0 (2026-02-20)
+
+- Adds the following functions:
+  - `fedexRegistration.registerAddress`
+  - `fedexRegistration.requestPin`
+  - `fedexRegistration.validatePin`
+  - `fedexRegistration.submitInvoice`
+
 ## v8.5.0 (2026-02-03)
 
 - Adds the following functions usable by child and referral customer users (closes #375):

composer.json

@@ -1,7 +1,7 @@
 {
   "name": "easypost/easypost-php",
   "description": "EasyPost Shipping API Client Library for PHP",
-  "version": "8.5.0",
+  "version": "8.6.0",
   "keywords": [
     "shipping",
     "api",

lib/EasyPost/Constant/Constants.php

@@ -11,7 +11,7 @@ abstract class Constants
     const BETA_API_VERSION = 'beta';
 
     // Library constants
-    const LIBRARY_VERSION = '8.5.0';
+    const LIBRARY_VERSION = '8.6.0';
     const SUPPORT_EMAIL = 'support@easypost.com';
 
     // Validation

lib/easypost.php

@@ -4,7 +4,7 @@
 
 // Required PHP extensions
 if (!function_exists('json_decode')) {
-    throw new Exception('EasyPost needs the JSON PHP extension.');
+    throw new \Exception('EasyPost needs the JSON PHP extension.');
 }
 
 // Exception Base Classes
@@ -104,6 +104,7 @@
 require_once(dirname(__FILE__) . '/EasyPost/Service/EmbeddableService.php');
 require_once(dirname(__FILE__) . '/EasyPost/Service/EndShipperService.php');
 require_once(dirname(__FILE__) . '/EasyPost/Service/EventService.php');
+require_once(dirname(__FILE__) . '/EasyPost/Service/FedExRegistrationService.php');
 require_once(dirname(__FILE__) . '/EasyPost/Service/InsuranceService.php');
 require_once(dirname(__FILE__) . '/EasyPost/Service/OrderService.php');
 require_once(dirname(__FILE__) . '/EasyPost/Service/ParcelService.php');