diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b022d2bc..db9890bda 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+### [1.8.3] 2019-01-30
+
+  * Fixed regression when executing partial updates
+
+### [1.8.2] 2019-01-29
+
+  * Fixed invalid deprecation warning for ext-pdo_mysql and similar
+  * Updated to latest xdebug-handler
+
 ### [1.8.1] 2019-01-29
 
   * Deprecated support for non-standard package names (anything with uppercase, or no / in it). Make sure to follow the warnings if you see any to avoid problems in 2.0.
diff --git a/composer.lock b/composer.lock
index f5b49a442..cf37babdc 100644
--- a/composer.lock
+++ b/composer.lock
@@ -187,16 +187,16 @@
         },
         {
             "name": "composer/xdebug-handler",
-            "version": "1.3.1",
+            "version": "1.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/xdebug-handler.git",
-                "reference": "dc523135366eb68f22268d069ea7749486458562"
+                "reference": "d17708133b6c276d6e42ef887a877866b909d892"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/xdebug-handler/zipball/dc523135366eb68f22268d069ea7749486458562",
-                "reference": "dc523135366eb68f22268d069ea7749486458562",
+                "url": "https://api.github.com/repos/composer/xdebug-handler/zipball/d17708133b6c276d6e42ef887a877866b909d892",
+                "reference": "d17708133b6c276d6e42ef887a877866b909d892",
                 "shasum": ""
             },
             "require": {
@@ -227,7 +227,7 @@
                 "Xdebug",
                 "performance"
             ],
-            "time": "2018-11-29T10:59:02+00:00"
+            "time": "2019-01-28T20:25:53+00:00"
         },
         {
             "name": "justinrainbow/json-schema",
diff --git a/doc/faqs/how-to-install-composer-programmatically.md b/doc/faqs/how-to-install-composer-programmatically.md
index 8a35e34d7..ba6536e54 100644
--- a/doc/faqs/how-to-install-composer-programmatically.md
+++ b/doc/faqs/how-to-install-composer-programmatically.md
@@ -35,7 +35,7 @@ give it uniqueness and authenticity as long as you can trust the GitHub servers.
 For example:
 
 ```bash
-wget https://raw.githubusercontent.com/composer/getcomposer.org/1b137f8bf6db3e79a38a5bc45324414a6b1f9df2/web/installer -O - -q | php -- --quiet
+wget https://raw.githubusercontent.com/composer/getcomposer.org/76a7060ccb93902cd7576b67264ad91c8a2700e2/web/installer -O - -q | php -- --quiet
 ```
 
 You may replace the commit hash by whatever the last commit hash is on
diff --git a/src/Composer/Installer.php b/src/Composer/Installer.php
index cd7facdd2..19c0015d6 100644
--- a/src/Composer/Installer.php
+++ b/src/Composer/Installer.php
@@ -1310,6 +1310,7 @@ class Installer
 
         foreach ($this->updateWhitelist as $packageName => $void) {
             $packageQueue = new \SplQueue;
+            $nameMatchesRequiredPackage = false;
 
             $depPackages = $repositorySet->findPackages($packageName, null, false);
             $matchesByPattern = array();
diff --git a/src/Composer/Repository/PlatformRepository.php b/src/Composer/Repository/PlatformRepository.php
index 0ce945611..7d5e047dd 100644
--- a/src/Composer/Repository/PlatformRepository.php
+++ b/src/Composer/Repository/PlatformRepository.php
@@ -24,7 +24,7 @@ use Composer\XdebugHandler\XdebugHandler;
  */
 class PlatformRepository extends ArrayRepository
 {
-    const PLATFORM_PACKAGE_REGEX = '{^(?:php(?:-64bit|-ipv6|-zts|-debug)?|hhvm|(?:ext|lib)-[a-z0-9](?:-?[a-z0-9]+)*)$}iD';
+    const PLATFORM_PACKAGE_REGEX = '{^(?:php(?:-64bit|-ipv6|-zts|-debug)?|hhvm|(?:ext|lib)-[a-z0-9](?:[_.-]?[a-z0-9]+)*)$}iD';
 
     private $versionParser;