[wp-trac] [WordPress Trac] #63811: PHPMailer: Update to v6.10.0

WordPress Trac noreply at wordpress.org
Mon Aug 11 16:16:34 UTC 2025


#63811: PHPMailer: Update to v6.10.0
--------------------------------+-----------------------------
 Reporter:  agulbra             |       Owner:  SergeyBiryukov
     Type:  defect (bug)        |      Status:  closed
 Priority:  normal              |   Milestone:  6.9
Component:  External Libraries  |     Version:  trunk
 Severity:  normal              |  Resolution:  fixed
 Keywords:  has-patch           |     Focuses:
--------------------------------+-----------------------------
Changes (by SergeyBiryukov):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"60623" 60623]:
 {{{
 #!CommitTicketReference repository="" revision="60623"
 External Libraries: Upgrade PHPMailer to version 6.10.0.

 This is a feature and maintenance release introducing full support for
 [https://www.rfc-editor.org/rfc/rfc6531 RFC 6531 SMTPUTF8], meaning that
 plugin or theme developers are now free to use Unicode characters in email
 addresses, such as `JøeÜser at example.com`, without any complicated encoding
 schemes. Using this feature requires sending through a mail server that
 advertises support for SMTPUTF8. For full details see
 [https://github.com/PHPMailer/PHPMailer/blob/master/SMTPUTF8.md
 SMTPUTF8.md].

 This commit also includes the parts of PHPMailer not previously bundled
 with core, specifically the DSNConfigurator, OAuth, and POP3 classes, so
 that plugin developers could use those extended features without including
 their own versions of the library.

 Including the full library aims to make it easier (and faster) for core to
 update in case of security issues, and to provide more flexibility and
 security for plugins and (by extension) users of WordPress.

 References:
 * [https://github.com/PHPMailer/PHPMailer/releases/tag/v6.10.0 PHPMailer
 6.10.0 release notes]
 * [https://github.com/PHPMailer/PHPMailer/compare/v6.9.3...v6.10.0 Full
 list of changes in PHPMailer 6.10.0]

 Follow-up to [54937], [55557], [56484], [57137], [59246], [59481].

 Props agulbra, Ipstenu, JeffMatson, lukecavanagh, dd32, Otto42,
 JeffMatson, MattyRob, desrosj, SirLouen, SergeyBiryukov.
 Fixes #39714, #63811.
 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/63811#comment:3>
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