v2.9.0

What's Changed

• Fix little typo by @nbennke in #1462
• 2.8.0.rc1 Regression: Preserve message-level charset when adding parts (related to Rails ActionMailer) by @johnnyshields in #1495
• Use Rake's default rakelib/ directory by @olleolleolle in #1488
• refactor: Use Dir.glob only once in gemspec's "files" directive by @olleolleolle in #1486
• Configure RSpec's zero-monkey patching mode by @olleolleolle in #1485
• Remove unnecessary gemfile dependency on strscan by @deivid-rodriguez in #1483
• README: sending multipart mail by @kapfenho in #1479
• Add delivery_interceptors method to Mail class to fetch registered interceptors by @ghousemohamed in #1475
• Update MIME-Version to have correct case per the RFC by @mikel in #1503
• Adding explicit JRuby support by @mikel in #1508
• refactor: Use Ruby 2's dir where possible by @olleolleolle in #1487
• [Corrected] Layout/TrailingWhitespace: Trailing whitespace detected. by @mikel in #1510
• Improve documentation by @fwolfst in #1371
• Span => Spam by @sebbASF in #1320
• use unpack1 by @ahorek in #1513
• Lazy-load fields and elements by @c960657 in #1491
• Install libyaml-dev for Psych by @c960657 in #1522
• Feature/parse lf by @sebbASF in #1520
• use match? by @ahorek in #1514
• Bump actions/checkout to v3 by @sebbASF in #1535
• Fix for #1527 by @sebbASF in #1534
• Standardise on WARNING: prefix by @sebbASF in #1533
• Checks are in the wrong place by @sebbASF in #1531
• Allow manual trigger by @sebbASF in #1524
• Handle parsing of LF-only body with separate parts by @mikel in #1511
• Make activesupport gem optional by @sebbASF in #1532
• SMTP: refactor and accept starttls :always and :auto by @eval in #1536
• Adds Ruby 3.2 to the CI matrix by @petergoldstein in #1552
• Layout conventions are not the same as syntax by @sebbASF in #1558
• Don't shadow local variable by @sebbASF in #1318
• Revert PR #1495 because it is a dupe of #1470 by @johnnyshields in #1559
• Add Ruby 3.3 to CI matrix by @m-nakamura145 in #1595
• TruffleRuby is flaky by @sebbASF in #1599
• Use require_relative where possible by @eval in #1598
• Test string is 1 char short of 78 by @sebbASF in #1568
• Update documentation regarding errors array by @mikehale in #1605
• Fix all 'assigned but unused variable' warnings by @skipkayhil in #1551
• Fix IMAP search issues by @nevans in #1611
• Document SMTP TLS/STARTTLS settings (cherry-picked from 2.8 stable branch) by @nevans in #1613
• CI: Use checkout@v4 by @olleolleolle in #1616
• Drop unused "ad hoc" GH Actions workflow by @olleolleolle in #1615
• include rfc822 as attachments by @ahorek in #1389
• Address warning: URI::RFC3986_PARSER warnings by @yahonda in #1620
• Add logger as a dependency for Ruby 3.4 warnings by @yahonda in #1619
• Fix regression in content_type for text part after converted to multipart by @jeremyevans in #1330

New Contributors

• @nbennke made their first contribution in #1462
• @johnnyshields made their first contribution in #1495
• @kapfenho made their first contribution in #1479
• @ghousemohamed made their first contribution in #1475
• @petergoldstein made their first contribution in #1552
• @mikehale made their first contribution in #1605
• @skipkayhil made their first contribution in #1551

Full Changelog: 2.8.1...2.9.0