We are pleased to announce that RT 4.2.2 is now available.This release is primarily a bugfix release; of particular note is that it contains schema changes for MySQL. Though the changes are limited, it is especially important to take, and verify you can recover from, a database backup prior to upgrading.

Also notable is that this release fixes a bug in 4.2.0 and 4.2.1 where failures of the HTML-to-text conversion would silently cause mail to fail to be sent. When using the rich text editor, RT will also now quote the the HTML parts of email, and not simply their text equivalents.

Other changes include:

Documentation

Wording fixes in Shredder
Clean up examples in Lifecycles documentation
Document additional indexes that increase performance of Shredder
Replace a suggested GnuPG option with one which is not deprecated
Note that errors reported from the GnuPG infrastructure may be caused by GnuPG not being configured, but having been automatically enabled.

Database

Ensure that even disabled scrips get the same id-to-name change that other scrips got during the 4.0 → 4.2 upgrade.
On MySQL, alter the character set of all columns used to store email addresses to UTF-8
Ensure that invalid byte sequences that may have snuck into the database previously (on earlier versions on MySQL, for instance) are not blindly interpreted as UTF-8 when retrieved from the database. As a result, invalid bytes will be returned from the API as the four characters "\xHH", where HH is the hexadecimal encoding of the byte.
Ensure that all data containing non-ASCII is quoted-printable encoded for PostgreSQL, instead of merely all data not claiming to be text/plain
Additional warnings prevention on Oracle; tests now pass cleanly
Allow fully-automated database upgrades using --upgrade-from and --upgrade-to options to rt-setup-database
Clean out any remaining traces of RTFM that lingered in custom fields and custom field values that were disabled at the time of the previous upgrade step.
Bullet-proof a 3.8 → 4.0 upgrade step for Scrips with no Condition

Serializer/importer

Install rt-serializer and rt-importer into sbin/
Ensure that incremental upgrade steps only run on incremental serializations, not all exports
Fix a runtime error in the incremental upgrade path to 4.2
Ensure that inflated Users and Groups are created with the same id as their Principal
Disable in-memory record caching when serializing and importing to improve performance
Only search non-Disabled custom fields when looking up BasedOn in initialdata files
Set up logging properly; warnings are now displayed during serialization and importing

Email

Don't die if HTML → text conversion throws an error, which would silently prevent outgoing mail from being sent. Instead, fall back to just sending text/html with no text/plain
Replying to an HTML mail with the rich text editor will now quote the HTML part, not the equivalent text version.
Set a transfer encoding on outgoing dashboards; this resolves issues with long lines when using the Sendmail MTA.
Cope with mangled and overly-quoted recipient headers occasionally generated by Outlook.

General user UI

Stop localizing custom field names, for consistency
Show a useful error on "show outgoing mail" if the user has no rights to see the page, rather than displaying an empty page.
Adjust UI to not block header on "show outgoing email" page
Hide the Take and Steal menu items if you already own the ticket, closing a regression in 4.2.0 and above.
Autocompletion custom fields now properly autocomplete when placed in custom field groupings
Improve rendering on Internet Explorer 6
Fix cascaded custom fields on Internet Explorer 8 and below.
Fix third-level cascading custom fields, broken in 4.2.1
Minor rendering bugs with Charts placed on homepages and dashboards
Whitelist "show outgoing email" and chart results from CSRF protection
RT 4.0.7 introduced a performance regression when building ticket searches that query Links; switch back to a much better-indexed query.
Fix "Clone ticket" functionality with Select-multiple custom fields.
Show the queue ID for the current queue in the ticket edit page, even if the user does not have SeeQueue; this prevents the user from accidentally changing the queue.
Respect custom field groupings on user preferences page

Query Builder

Warnings avoidance for searches with more than 1000 results.
Allow IS NULL to search for dates which are unset
Properly quote CF names containing non-ASCII characters in query builder, broken since 4.2.0
Add "UpdatedBy" TicketSQL limit

Admin

Correct a package load order problem which prevented the web installer from working since 4.2.0
Report the correct setting name in rt-validate-aliases
Fix real-time updating of Theme CSS on Internet Explorer 8 and below
Fix a minor display bug in the CF Admin pages, where the queue number instead of queue name would be displayed in requests shortly after server startup.
Add "Extra Info" as a possible field for "More About Requestor"

REST

Allow searching for users, queues, and groups in REST
Prevent a server error when attempting to guess content-type in the REST interface.

Development

Allow running tests with an explicit set of plugins enabled.
Custom Action and Condition packages (as supplied by extensions; these are not the text entry boxes in the UI) are now loaded at server startup time, to catch compile-time errors in such classes early as well as reducing RT's memory footprint on mod_perl. Previously, these errors would have logged errors only when their Scrip failed to fire. This restores the behavior found in RT 3.8, which was mistakenly removed in RT 4.0.0.
Additional callbacks, including in charts, and on ticket reply pages
Remove an unused Makefile target

A complete changelog is available from git.

RT 4.2.2 released