Update changelog, require Net_SMTP 1.8.1 for GSSAPI support

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- SMTP GSSAPI support via krb_authentication plugin (#6417)
 - Removed referer_check option (#6440)
 - Update to TinyMCE 4.8.2
 - Plugin API: Added 'raise_error' hook (#6199)

INSTALL

@@ -19,7 +19,7 @@ REQUIREMENTS
    - GD, Imagick (optional thumbnails generation, QR-code)
 * PEAR and PEAR packages distributed with Roundcube or external:
    - Mail_Mime 1.10.0 or newer
-   - Net_SMTP 1.7.1 or newer
+   - Net_SMTP 1.8.1 or newer
    - Net_Socket 1.0.12 or newer
    - Net_IDNA2 0.1.1 or newer
    - Auth_SASL 1.0.6 or newer

composer.json-dist

@@ -11,11 +11,10 @@
     "require": {
         "php": ">=5.4.0",
         "pear/pear-core-minimal": "~1.10.1",
-        "pear/net_socket": "~1.2.1",
         "pear/auth_sasl": "~1.1.0",
         "pear/net_idna2": "~0.2.0",
         "pear/mail_mime": "~1.10.0",
-        "pear/net_smtp": "~1.8.0",
+        "pear/net_smtp": "~1.8.1",
         "pear/crypt_gpg": "~1.6.3",
         "pear/net_sieve": "~1.4.3",
         "roundcube/plugin-installer": "~0.1.6",

program/lib/Roundcube/README.md

@@ -32,7 +32,7 @@ include_path directory of your webserver. Some classes of the framework require
 one or multiple of the following [PEAR][pear] libraries:
 
 - Mail_Mime 1.8.1 or newer
-- Net_SMTP 1.7.1 or newer
+- Net_SMTP 1.8.1 or newer
 - Net_Socket 1.0.12 or newer
 - Net_IDNA2 0.1.1 or newer
 - Auth_SASL 1.0.6 or newer