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ANNOUNCE: Apache SpamAssassin 3.3.0 available

 

 

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wtogami at apache

Jan 26, 2010, 8:33 AM

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ANNOUNCE: Apache SpamAssassin 3.3.0 available

Release Notes -- Apache SpamAssassin -- Version 3.3.0


Introduction
------------

This is a major release, incorporating enhancements and bug fixes that have
accumulated in a year and a half of development since the 3.2.5 release.
Apart from some new or changed dependencies on perl modules, this version
is compatible to large extent with existing installations, so the upgrade
is not expected to be problematic (neither is downgrading, if need arises).
Please consult the list of known incompatibilities below before upgrading.


Downloading and availability
----------------------------

Downloads are available from:

http://spamassassin.apache.org/downloads.cgi

md5sum of archive files:

15af629a95108bf245ab600d78ae754b Mail-SpamAssassin-3.3.0.tar.bz2
38078b07396c0ab92b46386bc70ef086 Mail-SpamAssassin-3.3.0.tar.gz
e66856085ca14947146d57a40a51beaa Mail-SpamAssassin-3.3.0.zip
5be313a60c27ae522700e20b557ade33 Mail-SpamAssassin-rules-3.3.0.r901671.tgz

sha1sum of archive files:

209a97102e2c0568f6ae8151e5a55cd949317b69 Mail-SpamAssassin-3.3.0.tar.bz2
35ff5ab33dd83bf8e3a63bd1540d819ab35117d5 Mail-SpamAssassin-3.3.0.tar.gz
d1c61c67c806054c4404a854fc113a1a3c3e71c7 Mail-SpamAssassin-3.3.0.zip
04ac1d5d02a69f382909b01a4426a048a1e69278 Mail-SpamAssassin-rules-3.3.0.r901671.tgz

Note that the *-rules-*.tgz files are only necessary if you cannot, or do not
wish to, run "sa-update" after install to download the latest fresh rules.

The release files also have a .asc accompanying them. The file serves
as an external GPG signature for the given release file. The signing
key is available via the wwwkeys.pgp.net key server, as well as
http://www.apache.org/dist/spamassassin/KEYS

The key information is:

pub 4096R/F7D39814 2009-12-02
Key fingerprint = D809 9BC7 9E17 D7E4 9BC2 1E31 FDE5 2F40 F7D3 9814
uid SpamAssassin Project Management Committee <private [at] spamassassin>
uid SpamAssassin Signing Key (Code Signing Key, replacement for 1024D/265FA05B) <dev [at] spamassassin>
sub 4096R/7B3265A5 2009-12-02

See the INSTALL and UPGRADE files in the distribution for important
installation notes.


Summary of major changes since 3.2.5
------------------------------------

COMPATIBILITY WITH 3.2.5

- rules are no longer distributed with the package, but installed by
sa-update - either automatically fetched from the network (preferably)
or from a tar archive, which is available for downloading separately
(see below, section INSTALLING RULES);

- CPAN module requirements:
- minimum required version of ExtUtils::MakeMaker is 6.17;
- modules now required: Time::HiRes, NetAddr::IP (4.000 or later),
Archive::Tar (1.23 or later), IO::Zlib;
- minimal version of Mail::DKIM is 0.31 (preferred: 0.37 or later);
expect some tests in t/dkim2.t to fail with versions older than 0.36_5;
- no longer used: Mail::DomainKeys, Mail::SPF::Query;
- either Digest::SHA or the older Digest::SHA1 is required, though
note that the DKIM plugin requires Digest::SHA for sha256 hashes
and Razor agents still need Digest::SHA1;
- some IPv6 functionality requires IO::Socket::INET6;

- if keeping the AWL database in SQL, the field awl.ip must be extended to
40 characters. The change is necessary to allow AWL to keep track of IPv6
addresses which may appear in a mail header even on non-IPv6 -enabled host.
While at it, consider also adding a field 'signedby' to the SQL table 'awl'
(and adding 'auto_whitelist_distinguish_signed 1' to local.cf);
see sql/README.awl for details. The change need not be undone even if
downgrading back to 3.2.* for some reason;

- fixing a protocol implementation error regarding a PING command required
bumping up the SPAMC protocol version to 1.5. Spamd retains compatibility
with older spamc clients. Combining new spamc clients with pre-3.3 versions
of a spamd daemon is not supported (but happens to work, except for the
PING and SKIP commands);

- if using one of the plugins (FreeMail, PhishTag, Reuse) which were
previously not part of the official package, please retire your local copy
to avoid it conflicting with a new native plugin;

- as the plugin AWL is no longer loaded by default, to continue using it
the following line is needed in one of the .pre files (e.g. local.pre):
loadplugin Mail::SpamAssassin::Plugin::AWL

- it may be worth mentioning that a rule DKIM_VERIFIED has been renamed
to DKIM_VALID to match its semantics;

- the DKIM plugin is now enabled by default for new installs, if the perl
module Mail::DKIM is installed. However, installation of SpamAssassin
will not overwrite existing .pre configuration files, so to use DKIM when
upgrading from a previous release that did not use DKIM, a directive:

loadplugin Mail::SpamAssassin::Plugin::DKIM

will need to be uncommented in file "v312.pre", or added to some
other .pre file, such as local.pre;

- due to changes in some internal data structures (like Bug 6185, 6254),
some third-party plugins may need to be updated. One such example is
the ClamAVPlugin plugin - please find a fresh version, which can be used
with both SpamAssassin versions 3.2.5 and 3.3.0, on its wiki page at
http://wiki.apache.org/spamassassin/ClamAVPlugin

- versions of amavisd-new between 2.5.2 and 2.6.1 (inclusive) are incompatible
with SpamAssassin 3.3; please upgrade amavisd to 2.6.2 or later, or apply
a workaround https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6257

- support for versions of perl 5.6.* is being gradually revoked
(may still work, but no promises and no support);

- preferred versions of perl are 5.8.8, 5.8.9, and 5.10.1 or later;

- on FreeBSD, please avoid using multithreaded versions of perl older
than 5.10.0 due to small default main thread's stack size, which may
not suffice for some regular expression evaluations;


INSTALLING RULES

Rules are normally installed by running a sa-update command.
The version of sa-update program should match the version of SpamAssassin
modules, so invoking sa-update should be performed only after installing
or upgrading SpamAssassin code, not before.

Installing rules from network is done with a single command,
normally run as root:
sa-update

Installing rules from files:
obtain all the following files:
Mail-SpamAssassin-rules-xxx.tgz
Mail-SpamAssassin-rules-xxx.tgz.asc
Mail-SpamAssassin-rules-xxx.tgz.md5
Mail-SpamAssassin-rules-xxx.tgz.sha1
(where xxx may look something like '3.3.0.r893295')
install rules from a compressed tar archive:
sa-update --install Mail-SpamAssassin-rules-xxx.tgz
(sa-update will need corresponding .asc and .sha1 files with the
same base name in the same directory as the .tgz file)


MAIN NEW FEATURES

- IPv6 support was substantially improved (see below);

- many improvements to the DKIM plugin (understands author domain signatures,
supports multiple signatures, ADSP support with overrides) - (see below);

- added 'if can(Class::method)' conditional statement, allowing configuration
settings to be conditional on plugin capabilities without requiring
new version releases to do so;

- added a --verbose option to the sa-update utility to show updated channels;

- added a configuration option 'time_limit', defaulting to 300 seconds
or whatever the caller (like spamd) provides; attempting to gracefully
terminate the checking when a time limit is reached, reporting the score
and test hits that were collected so far, along with an added hit on
a rule TIME_LIMIT_EXCEEDED;

- more expensive code sections are now instrumented with timing measurements;
timing report is logged as a debug message by the end of processing,
and made available to a caller and to 'add_header' directives through
a TIMING tag;

- added a configuration option skip_uribl_checks to the URIDNSBL plugin,
cross-documented it with skip_rbl_checks;

- preserve order of declared 'add_header' header fields;

- configurable network mask length for the AWL plugin (see below);

- added support for DCC reputations (see below);

- improved error handling and robustness (see below);

- added timestamps when logging on stderr;

- allowed debug areas to be excluded from debugging,
e.g.: -D all,norules,noconfig,nodcc


BUILDING AND PACKAGING

- rules are no longer distributed with the package, but installed by
sa-update

- Makefile.PL has been simplified and a bug fixed in a DESTDIR support
by increasing the minimum required version of ExtUtils::MakeMaker to 6.17

- tools check_whitelist and check_spamd are now included in the distribution,
now called 'sa-awl' and 'sa-check_spamd'


WORKAROUNDS TO PERL BUGS AND LIMITATIONS

- modified the Check.pm plugin to produce smaller chunks of source code
from rules (60 kB) to avoid Perl compiler crashing on exceeding stack size;

- localized global variables $1, $2, etc at several places, avoiding taint
issue from propagating;

- avoided Perl I/O bug by replacing line-by-line reading with read() where
suitable, or played down the EBADF status in other places and only report
it as a dbg instead of a die - while also providing a little speedup
(10 .. 25 %) on reading a message;

- provided a new sub Message::split_into_array_of_short_lines to split
a text into array of paragraph chunks of sizes between 1 kB and 2 kB,
giving less opportunity to runaway regular expressions in rules;
fixes bugs: 5717, 5644, 5795, 5486, 5801, 5041;


MEMORY FOOTPRINT

- as a side-effect of compiling rules in smaller chunks (to avoid compiler
crashes), virtual memory footprint of SpamAssassin is reduced;

- saved some memory by not importing the Pod::Usage unless it is needed;

- saved 350k+ of memory in sa-compile by replacing DynaLoader with XSLoader;

- removed unneeded index from MySQL bayes_token table;


IPv6 SUPPORT

- added IPv6 support for trusted_networks, internal_networks, msa_networks,
whitelist_from_rcvd, and other stuff that uses NetSet and the Received
header field parser, using NetAddr::IP;

- allowed usage of a remote dccifd host through an INET or INET6 socket;

- added IPv6 support to AWL plugin and its utility modules; a network
mask length is now configurable and defaults to /48, which controls
what data is stored in an AWL database;

- sql/README.awl and sql/awl_*.sql: increased suggested awl.ip field width
to 40 characters to be able to hold IPv6 addresses;

- IP_PRIVATE now includes ipv6 variants of private address space,
as well as the ipv6-mapped ipv4 addresses.

- NetSet now understands that ::ffff:192.168.1.2 and 192.168.1.2 are
the same address;

- IPv6 addresses are now properly read from Received header fields;

- when reading Received header fields, the "IPv6:" prefix is stripped from
IPv6 addresses, and "::ffff:" is removed from IPv6-mapped IPv4 addresses
(so strings can match them as simply IPv4 addresses);

- ::1/128 is always included in the trusted_networks/internal_networks set
similar to 127.0.0.0/8;

- some of the IPv6 functionality in SpamAssassin requires that a perl module
IO::Socket::INET6 is available (like accessing a DNS resolver over inet6,
talking to a dccifd host over inet6 socket, SPAMC protocol);


SPAMC

- Mail::SpamAssasin::Client ping may erroneously result in broken pipe;
bump spamc protocol version to 1.5, updated spamd, spamc and Client.pm;

- added -n / --connect-timeout switch to spamc, allowing to separate
a connection timeout from communication timeout;

- added --filter-retries and --filter-retry-sleep;

- increased allowed line length in spamc.conf files to 8 KiB and report
an error when the limit is exceeded;

- fixed issue where spamc would not time out connections to a hung spamd;

- spamc client library leaked the zlib compression buffer if compression
is used;

- spamc long option '--dest' was broken;


SPAMD

- when spamd is started with the daemonize option do not exit the parent
until a child signals that it has logged the pid, to allow a wrapper
script to simply continue immediately after starting spamd;

- additional tempfile cleanup in kill_handler;

- added SPAMD_LOCALHOST option to "make test" to allow specifying
non-127.0.0.1 IP address for use in FreeBSD jail;


API

- adding one optional argument to Mail::SpamAssassin::parse allows caller
to pass additional out-of-band information to SpamAssassin (such as a
deadline time, DKIM verification results, information about a SMTP session,
or dynamic rule hits); this information is made available to plugins and
the rest of the code through a 'suppl_attrib' hash;

- added option 'master_deadline' to the suppl_attrib argument of a
Mail::SpamAssassin::parse method, allowing the caller to override a
time_limit configuration setting;

- Plugin::Check - pick up 'rule_hits' from caller via the new mechanism
and call got_hit() on them;

- simplified adding dynamic score hits and dynamic rules by plugins
(such as AWL, CRM114, FuzzyOcr, Check) by letting got_hit() accept
options tflags and description, and letting it store a supplied
dynamic score for proper reporting;

- let the timing breakdown information be accessible to a caller through
the existing get_tag mechanism (tag TIMING);

- let the generated header fields ('add_header' configuration options)
be accessible to a caller through the existing get_tag mechanism
(tags ADDEDHEADER, ADDEDHEADERHAM, ADDEDHEADERSPAM);


RULES

- rules are no longer distributed with the package;

- new scores were generated by a genetic algorithm (GA) and then manually
tweaked based on cleaned datasets supplied by a dozen volunteers;

- dropped redundant rules or rules causing too many false positives;

- added or updated many rules; incomplete list in no particular order:
vbounce, lotsa_money, muchmoney, image spam, fill_this_form, FreeMail,
European Parliament, HTML attachments, uri_obfu*, urinsrhsbl, urinsrhssub,
urifullnsrhsbl, URI_OBFU_X9_WS, rDNS=localhost, INVALID_DATE_TZ_ABSURD,
RCVD_IN_PSBL, FRT_VALIUM*, BOUNCE_MESSAGE, VBOUNCE_MESSAGE,
__BOUNCE_UNDELIVERABLE, HELO_STATIC_HOST, FILL_THIS_FORM_FRAUD_PHISH,
CHALLENGE_RESPONSE, DKIM_VALID, DKIM_VALID_AU, DKIM_ADSP_*,
NML_ADSP_CUSTOM_{LOW,MED,HIGH}, __VIA_ML, MIME_BASE64_TEXT, LOTTO_URI,
FORGED_MUA_THEBAT_BOUN, FORGED_MUA_THEBAT_CS, UNRESOLVED_TEMPLATE,
__THEBAT_MUA, __ANY_OUTLOOK_MUA, RP_MATCHES_RCVD, one-word X-Mailer,
SPAN rules, skype and misquoted-HTML rules, HTML obfuscation and
Google feedproxy URI rules, advance_fee updates including further
evolved advance fee second-order metarules, test rule for
postmaster+abuse missing, FROM_MISSPACED, fixed FROM_CONTAINS_TAB, a
Facebook redirector pattern, fixed FPs with TVD_SPACE_RATIO regarding
one-word emails and ISO-2022-JP, added exclusion for __ISO_2022_JP_DELIM
to OBFUSCATING_COMMENT, GAPPY_SUBJECT, PLING_QUERY and FM_FRM_RN_L_BRACK
rules, RATWARE_BOUNDARY plus variant, superseded all previous
RATWARE_OUTLOOK stuff, resolved FP in obfuscated URI rule, fixed breakage
in tbird image rule, fixed SUBJECT_FUZZY_MEDS FP on unobfuscated "meds",
added misspaced From header field rule, numeric+cctld URI rule,
updated FH_DATE_PAST_20XX, ...

- added PSBL blacklist - http://psbl.surriel.com/

- added support for http://www.spamhaus.org/css/

- replaces HABEAS, BSP and SSC with RP CERTIFIED;

- use ReturnPath's RNBL, replacing SSBL;

- added rule for plain text attachments with octet-stream MIME type;

- avoided false positives on ISO-2022-JP messages in several rules;

- removed massmailers from uridnsbl_skip_domain in 25_uribl.cf;

- updated various default whitelists, uridnsbl_skip_domain, adsp_override, ...


PLUGINS

- new plugins: FreeMail, PhishTag, Reuse;

- now enabled by default: DKIM;

- now disabled by default: AWL;

- retired plugin: DomainKeys;


AWL PLUGIN

- plugin AWL is now disabled by default;

- added new configuration options auto_whitelist_ipv4_mask_len and
auto_whitelist_ipv6_mask_len to allow more control on what part of
an IP address is stored into an AWL database;

- README.awl: increased a suggested awl.ip field width to 40 characters
to support IPv6 addresses;

- AutoWhitelist.pm: allowed storing a canonicalized IPv6 address, cropped
to a configurable network mask (previously causing SQL server errors:
'value too long');

- let AWL with SQL keep separate records for DKIM-signed and unsigned mail
(when auto_whitelist_distinguish_signed configuration option is true,
and a field awl.signedby exists);

- avoided a race condition in SQLBasedAddrList.pm when multiple processes
try to insert-or-update an awl SQL record: trying INSERT first, and if
that fails go for UPDATE;

- gracefully handle NaN from corrupted database or a broken emulator or
virtualizer;


DCC PLUGIN

- added support for DCC reputations, added setting dcc_rep_percent,
new test check_dcc_reputation_range(), new tag DCCREP
(DCC servers supply reputation data only to licensed clients);

- allowed usage of a remote dccifd host through an INET or INET6 socket;


DKIM PLUGIN

- the DKIM plugin is now enabled by default for new installs if the perl
module Mail::DKIM is installed. However, installing SpamAssassin will
not overwrite existing .pre configuration files, so to use DKIM when
upgrading from a previous release that did not use DKIM, the directive:

loadplugin Mail::SpamAssassin::Plugin::DKIM

will need to be uncommented in file "v312.pre", or added to some
other .pre file, such as local.pre;

- absolute minimal version of Mail::DKIM is 0.31;
support for ADSP requires Mail::DKIM 0.34;
a DNS test (and rule) for NXDOMAIN is operational since Mail::DKIM 0.36_5,
so effectively the recommended version is Mail::DKIM 0.37 or later;

- a perl module Digest::SHA is required if the DKIM plugin is enabled.
If a perl module Digest::SHA is available, the module Digest::SHA1
becomes optional as far as SpamAssassin is concerned, but is still
needed by Razor agents;

- added support for multiple signatures (useful for whitelisting);

- plugin now distinguishes author domain signatures from third party
signatures (useful for whitelisting);

- provides a tag DKIMIDENTITY (in addition to DKIMDOMAIN);

- DKIM now supports Author Domain Signing Practices - ADSP (RFC 5617);

- use the Mail::DKIM::AuthorDomainPolicy instead of Mail::DKIM::DkimPolicy,
when available (since Mail::DKIM 0.34);

- implements an 'adsp_override' configuration directive and adds
an eval:check_dkim_adsp check, which is used by new DKIM_ADSP_* rules;

- rules contain an initial set of 'adsp_override' directives, listing
some of the more popular target domains for phishing (applicable only to
domains which sign all their direct mail with a DKIM or DK signature);

- this plugin can now re-use Mail::DKIM verification results if made
available by a caller, which saves resources and makes it possible
for SpamAssassin to work on a truncated large mail without breaking
DKIM signatures;

- check_dkim_signed and check_dkim_adsp eval rules can now take an optional
list of domain names, which limits their action to listed domains only.
It facilitates building DKIM-based rules for specific domains, without
having to resort to meta rules;

- draft-ietf-dkim-ssp-10/RFC-5617 made Author Domain Signature based on 'd':
updated ADSP code accordingly; changed whitelisting code to be based on
SDID ('d') instead of AUID ('i');

- Plugin/DKIM.pm: terminology changes in comments and logging according
to RFC 5617 and draft-ietf-dkim-rfc4871-errata-07;


BUG FIXES

- fixed Rule2XSBody segfaults;

- no longer treat user data as perl booleans (a string "0" is a false);

- avoid data from the wild be interpreted as perl regular expressions;

- ArchiveIterator: prevent _scan_directory from passing directories
to _scan_file (on NFS it would fail with EISDIR on read(2);

- fixed inserting the SpamAssassin -generated header fields after a
multiline Return-Path header field;

- fixed vpopmail support;

- fixed incorrect mode bits when creating lock files for AWL;

- fixed some cases where :addr headers were parsed incorrectly;

- fixed leakage of 'whitelist_from_rcvd' entries between spamd users;

- fixing run_and_catch, which failed to catch a non-timed run;

- 127/8 isn't an illegal IP;

- reworked the M::S::Timeout module to deal with nested timers as one would
expect: an inner timer shouldn't be able to extend an outer timer's limit;
account for time elapsed in the submitted subroutine when restarting an
outer timer; reset() should have accounted for time already spent;
deal with nested timed runs where alarm(0) does not provide remaining time;

- the 'exists:' evaluator in HEADER rules now works as documented
and tests for existence of a header field, instead of testing for
a header field body being nonempty; internally, the pms->get can
also now distinguish between empty and nonexistent header fields;

- applied fixes to header fields parsing in several places: header field
names are case-insensitive, whitespace is not required after a colon,
obsolete rfc822 syntax allowed whitespace before a colon;
VBounce: match "Received:" only at the beginning of a line;

- fixed bugs 6237 and 6295: 1.0.0.0/8 and 2.0.0.0/8 are now valid allocated
address ranges, fixed a corresponding rule RCVD_ILLEGAL_IP;

- fixed bug 6205 comment 5 in URIDetail.pm;

- 'pyzor_options' in Plugin/Pyzor.pm was not untainted;

- made the URIDetail plugin taint safe;

- fixed parsing of multi-line Received header fields for
BOUNCE_MESSAGE/VBOUNCE_MESSAGE et al;

- Bug 6206, Bug 2536: spamd: untaint directory as obtained from a password
file or from vpopmail utilities, avoid implicit untainting; report error
if user preferences file exists but cannot be accessed;

- avoided using raw data from DNS as a regexp in Plugin/ASN.pm;

- ensured the dbg() and info() calls always return the same value (true)
regardless of log level;

- suppressed logging of $& when its value is not available (i.e. when
no regexp has been evaluated during rule evaluation);

- Exporter never really worked in SA, was not enclosed in BEGIN {};

- masses/runGA and masses/mk-baseline-results: prevent a shell 'source'
command from loading an unrelated file named 'config' which happens to be
in the current PATH - must use a ./ in an arg to a 'source' command;


ERROR HANDLING, ROBUSTNESS

- improved error detection and reporting: test status of all system calls
and I/O operations (or explicitly document where not), and report
unexpected failures;

- eval calls now check for eval result instead of testing the $@, which
is not always reliable;

- localized $@ and $! in DESTROY methods to prevent potential calls to eval
and calls to system routines in code executed from a DESTROY method
from clobbering global variables $@ and $!;

- Util::helper_app_pipe_open_unix: contain a failing exec with an eval
to prevent additional cases of process cloning. The exec could fail
this way when given tainted arguments;

- Util::helper_app_pipe_open_unix: flush stdout and stderr before forking,
otherwise an error reported by exec (such as 'insecure dependency')
was lost in a buffer;

- eval-protected an open($fh,'-|') to capture implied fork failures
due to lack of system resource;

- explicit untainting: combine "use re 'taint'" with untaint_var(),
avoiding implicit perl untainting, along with workarounds to prevent it;

- added 'use strict' where missing;

- avoided a bunch of warnings on "Use of uninitialized value";

- clearly report reasons for helper application process failures;

- t/SATest.pm: provide information about the process failure reason
if a system() call fails; improved its reporting of failures;

- improved error reporting in Plugin/DCC.pm on finding a DCC home directory
to facilitate troubleshooting;


OTHER CHANGES

- pseudoheader "ALL:raw" returns a pristine header section,
and pseudoheader "ALL" returns a cleaned header section

- total rewrite of URI detection in plain text body;

- many updates to the list of top level domains;

- added 'util_rb_3tld', allowing 3-level TLDs to be listed in URIBLs and
allowing new 3TLDs to be added from rule updates;

- avoided trusted_networks bog down due to O(n^2) loop with millions
of entries;

- applied fixes to Plugin/VBounce.pm, updated VBounce ruleset;

- added support for a 'Communigate Pro' Received header field;

- parse Communigate Pro "with HTTPU" auth token;

- let DependencyInfo.pm understand a concept of recommended module version,
besides a required version;

- provided a workaround for Net::DNS::Packet::new inconsistency;

- let SpamAssassin use either Digest::SHA or Digest::SHA1, whichever is
available (the Digest::SHA is now a base module since perl 5.10.0);

- improved parsing of eval-type rules: allow unquoted domain names as
arguments, disallow unmatched quotes;

- provided a new module Mail::SpamAssassin::BayesStore::BDB. It should be
treated as alpha-quality (needs more testing) and is not yet ready for
production use;

- exposed existing function 'received_within_months' as an eval function
in Plugin/HeaderEval.pm;

- moved rc script to /var/lock/subsys/spamd instead of
/var/lock/subsys/spamassassin so 'service spamd status' will work;

- added feature to re-download MIRRRORED.BY files at least once a week, or if
'sa-update --refreshmirrors' switch is used;

- input delimiter $/ can be corrupted by a plugin, localize $/ and $\ before
calling a plugin;

- bumped the retry counter to 180 seconds for starting spamd on slow machines;

- resolved Bug 5325: syslog severity level in spamc/libspamc.c for max
message size (changed LOG_ERR into LOG_NOTICE for the message:
"skipped message, greater than max message size");

- added checker to avoid taint warnings if hostname is returned as '(none)';

- altered sa-update to produce an error message if a channel doesn't exist;

- Bug 6150, Bug 6127, Bug 5981, Bug 5950, Bug 6191: let spamd log/report
a child process exit status or aborting condition in an informative way;

- added checker to detect accidental match-everything regexps in rules;

- updated garescorer for 3.3.0: use more epochs in GA runs for better scores;
clarify some mass-check warning output, ensure rule name always appears at
start of line; if a rule had no default/existing score in 50_scores.cf,
don't tell the GA that 1.0 is an appropriate default value, instead pick
the midway point of its score range. this produces better results;
remove some dead code from masses/score-ranges-from-freqs;

- set garescorer.c to report performance as iterations per second;

- added test to ensure that all config settings are correctly handled when
switching between users; added more config setting type metadata to enable
those tests to work; and fix URIDetail to store config on the {conf} object,
not on the plugin;

- moved 'release tests' to xt/ directory; mirror long-running, net-tests and
stress tests with xt/50_testname.t scripts to enforce their run before a
release;

- made numerous additional and updated self-tests;

- added a Test::Perl::Critic release-test;

- cleaned up some code based on suggestions by perl module Test::Perl::Critic,
among others:
. enable TestingAndDebugging::ProhibitNoStrict test but allow the
use of 'no strict "refs"';
. deal with BuiltinFunctions::RequireGlobFunction;
. deal with ControlStructures::ProhibitMutatingListFunctions
removing this exception from xt/60_perlcritic.t;
. deal with BayesStore/BDB.pm, Variables::ProhibitConditionalDeclarations
. now that the module Time::HiRes is a required module, we can afford
to replace a select() with Time::HiRes::sleep, and remove exception
BuiltinFunctions::ProhibitSleepViaSelect from xt/60_perlcritic.t;

- updated documentation, fixing numerous typos and mistakes in documentation
text and in log messages;

- extensively improved development process:
. automated testing through Hudson, a continuous integration tool;
. improved mass-check system and rules oversight;


About Apache SpamAssassin
-------------------------

Apache SpamAssassin is a mature, widely-deployed open source project
that serves as a mail filter to identify spam. SpamAssassin uses a variety
of mechanisms including mail header and text analysis, Bayesian filtering,
DNS blocklists, and collaborative filtering databases. In addition, Apache
SpamAssassin has a modular architecture that allows other technologies to be
quickly incorporated as an addition or as a replacement for existing methods.
Apache SpamAssassin typically runs on a server, classifies and labels spam
before it reaches your mailbox, while allowing other components of a mail
system to act on its results.

Most of the Apache SpamAssassin is written in Perl, with heavily traversed
code paths carefully optimized. Benefits are portability, robustness and
facilitated maintenance. It can run on a wide variety of POSIX platforms.
The server and the Perl library feels at home on Unix and Linux platforms,
and reportedly also works on MS Windows systems under ActivePerl.

For more information, visit http://spamassassin.apache.org/


About The Apache Software Foundation
------------------------------------

Established in 1999, The Apache Software Foundation provides organizational,
legal, and financial support for more than 100 freely-available,
collaboratively-developed Open Source projects. The pragmatic Apache License
enables individual and commercial users to easily deploy Apache software;
the Foundation's intellectual property framework limits the legal exposure
of its 2,500+ contributors.

For more information, visit http://www.apache.org/

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