1 APACHE 2.4 STATUS: -*- mode: text; coding: utf-8 -*-
2 Last modified at [$Date$]
4 The current version of this file can be found at:
6 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
8 The current development branch of this software can be found at:
10 * http://svn.apache.org/repos/asf/httpd/httpd/trunk
12 Consult the following STATUS files for information on related projects:
14 * http://svn.apache.org/repos/asf/apr/apr/trunk/STATUS
15 * http://svn.apache.org/repos/asf/apr/apr/branches/1.4.x/STATUS
16 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.4.x/STATUS
17 * http://svn.apache.org/repos/asf/apr/apr/branches/1.5.x/STATUS
18 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.5.x/STATUS
19 * http://svn.apache.org/repos/asf/apr/apr/branches/1.6.x/STATUS
20 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.6.x/STATUS
22 Patches considered for backport are noted in their branches' STATUS:
24 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/STATUS
25 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
30 [NOTE that x.{odd}.z versions are strictly Alpha/Beta releases,
31 while x.{even}.z versions are Stable/GA releases.]
33 2.4.28 : In development.
34 2.4.27 : Tagged on July 6, 2017.
35 2.4.26 : Tagged on June 13, 2017. Released on June 19, 2017.
36 2.4.25 : Tagged on December 16, 2016. Released on December 21, 2016.
37 2.4.24 : Tagged on December 16, 2016, not released.
38 2.4.23 : Tagged on June 30, 2016. Released on July 05, 2016.
39 2.4.22 : Tagged on June 20, 2016, not released.
40 2.4.21 : Tagged on June 16, 2016, not released.
41 2.4.20 : Tagged on April 4, 2016. Released on April 11, 2016.
42 2.4.19 : Tagged on March 21, 2016, not released.
43 2.4.18 : Tagged on December 8, 2015. Released on December 14, 2015.
44 2.4.17 : Tagged on October 9, 2015. Released October 13, 2015.
45 2.4.16 : Tagged on July 9, 2015. Released July 15, 2015
46 2.4.15 : Tagged on June 19, 2015. Not released.
47 2.4.14 : Tagged on June 11, 2015. Not released.
48 2.4.13 : Tagged on June 4, 2015. Not released.
49 2.4.12 : Tagged on January 22, 2015. Released Jan 29, 2015
50 2.4.11 : Tagged on January 15, 2015. Not released.
51 2.4.10 : Tagged on July 15, 2014. Released July 21, 2014
52 2.4.9 : Tagged on March 13, 2014. Released on March 17, 2014
53 2.4.8 : Tagged on March 11, 2014. Not released.
54 2.4.7 : Tagged on November 19, 2013. Released on Nov 25, 2013
55 2.4.6 : Tagged on July 15, 2013. Released July, 22, 2013
56 2.4.5 : Tagged on July 11, 2013, not released.
57 2.4.4 : Tagged on February 18, 2013. Released Feb 25, 2013
58 2.4.3 : Tagged on August 17, 2012. Released Aug 18, 2012
59 2.4.2 : Tagged on April 5, 2012. Released Apr 17, 2012.
60 2.4.1 : Tagged on February 13, 2012. Released Feb 21, 2012.
61 2.4.0 : Tagged on January 16, 2012, not released.
62 2.3.16 : Tagged on December 15, 2011.
63 2.3.15 : Tagged on November 8, 2011. Released Nov. 15, 2011.
64 2.3.14 : Tagged on August 1, 2011. Released Aug. 9, 2011.
65 2.3.13 : Tagged on June 28, 2011, not released.
66 2.3.12 : Tagged on May 11, 2011. Released May 23, 2011.
67 2.3.11 : Released as Beta on March 7, 2011.
68 2.3.10 : Tagged on December 13, 2010. Released Dec 21, 2010.
69 2.3.9 : Tagged on November 23, 2010, not released.
70 2.3.8 : Tagged on August 24, 2010.
71 2.3.7 : Tagged on August 19, 2010, not released.
72 2.3.6 : Released on June 21, 2010.
73 2.3.5 : Released on January 26, 2010.
74 2.3.4 : Released on December 8, 2009.
75 2.3.3 : Tagged on November 11, 2009, not released.
76 2.3.2 : Tagged on March 23, 2009, not released.
77 2.3.1 : Tagged on January 2, 2009, not released.
78 2.3.0 : Tagged on December 6, 2008, not released.
80 Contributors looking for a mission:
82 * Just do an egrep on "TODO" or "XXX" in the source.
84 * Review the bug database at: http://issues.apache.org/bugzilla/
86 * Review the "PatchAvailable" bugs in the bug database:
88 https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable
90 After testing, you can append a comment saying "Reviewed and tested".
92 * Open bugs in the bug database.
94 * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.
97 CURRENT RELEASE NOTES:
99 * Forward binary compatibility is expected of Apache 2.4.x releases, such
100 that no MMN major number changes will occur after 2.4.1. Such changes can
101 only be made in the trunk.
103 * All commits to branches/2.4.x must be reflected in SVN trunk,
104 as well, if they apply. Logical progression is commit to trunk
105 then merge into branches/2.4.x, as applicable.
107 * Current exceptions for RTC for this branch:
112 . non-Unix, single-platform code
114 RELEASE SHOWSTOPPERS:
116 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
117 [ start all new proposals below, under PATCHES PROPOSED. ]
120 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
121 [ New proposals should be added at the end of the list ]
123 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
124 allowing per backend TLS configuration.
125 trunk patch: http://svn.apache.org/r1740928
126 http://svn.apache.org/r1740960
127 http://svn.apache.org/r1740967
128 http://svn.apache.org/r1740987
129 http://svn.apache.org/r1740998
130 http://svn.apache.org/r1742697
131 http://svn.apache.org/r1756976
132 http://svn.apache.org/r1781313
133 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
136 *) mod_remoteip: Add PROXY protocol support
137 trunk patch: http://svn.apache.org/r1776575
138 http://svn.apache.org/r1776578 (doc fix)
139 http://svn.apache.org/r1776627 (shortened name + doc fix)
140 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
141 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
142 http://svn.apache.org/r1778268 (fix compiler warning)
143 http://svn.apache.org/r1780725 (set buckets aside)
144 http://svn.apache.org/r1781030 (fix strict GCC warning)
145 http://svn.apache.org/r1781031 (reference the filter by handle)
146 http://svn.apache.org/r1781701 (rework optional processing case)
147 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
148 http://svn.apache.org/r1789800 (remove optional processing)
149 http://svn.apache.org/r1790169 (rename "exception" directive)
150 http://svn.apache.org/r1790457 (Update directive name in err message)
151 2.4 convenience patch (includes CHANGES):
152 http://home.apache.org/~jim/patches/RemoteIPProxyProtocol.2.4.x.patch
155 * mod_journald: Add new module mod_journald to log error logs into journald.
156 trunk patch: http://svn.apache.org/r1610339
157 http://svn.apache.org/r1621806
158 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
160 jchampion: Looks like the headers require GCC extensions to compile, so
161 mod_journald can't be configured in maintainer mode (-std=c89).
162 Can anyone else reproduce, or is it just my distro?
164 *) core: Disallow multiple Listen on the same IP:port when listener buckets
165 are configured (ListenCoresBucketsRatio > 0), consistently with the single
166 bucket case (default), thus avoiding the leak of the corresponding socket
167 descriptors on graceful restart.
168 trunk patch: http://svn.apache.org/r1789220
169 http://svn.apache.org/r1792675
170 2.4.x patch: trunk works (modulo CHANGES)
173 *) event: Avoid listener periodic wake ups by using the pollset wake-ability
174 when available. PR 57399.
175 trunk patch: http://svn.apache.org/r1762580
176 http://svn.apache.org/r1762701
177 http://svn.apache.org/r1762702
178 http://svn.apache.org/r1762718
179 http://svn.apache.org/r1762723
180 http://svn.apache.org/r1762742
181 http://svn.apache.org/r1762743
182 http://svn.apache.org/r1774538
183 http://svn.apache.org/r1779354
184 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-mpm_event-wakeup-v7.1.patch
187 *) prefork: This fixes race-condition in signals handling when httpd is
188 runnning on foreground and user hits ctrl+c
189 trunk patch: http://svn.apache.org/r1618555
190 2.4.x patch: svn merge -c 1618555 ^/httpd/httpd/trunk .
192 jailetc36: untested because I'm unsure on how to reproduce the race, but
193 the patch description looks straighforward.
194 If confirmed, it would worth, IMHO, a CHANGE entry and maybe a
197 *) buildconf: add an apr-config mode, which allows builds to proceed without
198 APR source code as long as a valid APR installation exists.
199 Involves checking in the latest versions of APR's m4 files and
200 the PrintPath helper.
201 trunk patch: https://svn.apache.org/r1780441
202 https://svn.apache.org/r1780470
203 https://svn.apache.org/r1795928
204 2.4.x patch: svn merge -r 1780253:HEAD ^/httpd/httpd/branches/trunk-buildconf-noapr
207 *) docs: add an auto-generated Overrides class index.
208 (I know this is technically CTR, but the new machinery is a little
209 more complex than just a simple docs change. Make sure to svn-up your
210 docs-build directory.)
211 trunk patch: https://svn.apache.org/r1793922
212 https://svn.apache.org/r1793923
213 2.4.x patch: svn merge -r1793921:HEAD ^/httpd/httpd/branches/trunk-override-index
216 *) mod_proxy_wstunnel fix PR 61142
217 2.4.x patch: svn merge -c 1801594 ^/httpd/httpd/trunk .
220 *) Makefile: Use different variables to track normal modules and MPMs during
221 build. Only the enabled MPM is uncommented in the configuration
222 if multiple DSOs are built, and LoadModule for MPMs will now come
223 before LoadModule for the normal modules. Patch by rjung.
224 trunk patch: https://svn.apache.org/r1729235
225 https://svn.apache.org/r1730079
226 https://svn.apache.org/r1801665
227 2.4.x patch: svn merge -c1729235 -c1730079 -c1801665 ^/httpd/httpd/trunk
230 *) mod_proxy_wstunnel: Fix detection of unresponded request which could have
231 led to spurious HTTP 502 error messages sent on upgrade connections.
233 trunk patch: http://svn.apache.org/r1754164
234 http://svn.apache.org/r1801994
235 http://svn.apache.org/r1801995
236 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-mod_proxy_wstunnel-PR61283.patch
237 +1: ylavic, jchampion
239 *) mod_proxy_fcgi: Add the support for mod_proxy's flushpackets and flushwait params
240 trunk patch: http://svn.apache.org/r1802040
241 2.4.x patch: trunk works (modulo CHANGES)
244 PATCHES/ISSUES THAT ARE BEING WORKED
245 [ New entries should be added at the START of the list ]
247 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
248 proxy_post_handshake hook fails.
249 Trunk patch: r1645529 (works)
250 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
252 ylavic: there may be missing bits, see thread for commit r1736510.
254 *) core: Drop an invalid Last-Modified header value coming
255 from a (F)CGI script instead of replacing it with Unix epoch.
256 Warn the users about Last-Modified header value replacements
257 and violations of the RFC.
258 trunk patch: http://svn.apache.org/r1748379
259 http://svn.apache.org/r1750747
260 http://svn.apache.org/r1750749
261 http://svn.apache.org/r1750953
262 http://svn.apache.org/r1751138
263 http://svn.apache.org/r1751139
264 http://svn.apache.org/r1751147
265 http://svn.apache.org/r1757818
266 2.4.x: trunk patches work, final view:
267 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
268 The problem has been discussed in dev@ extensively but we did not reach a common
269 agreement about how to proceed in the long term. While we wait, I would really like
270 to introduce useful logs for the users (the starting point of this change was a users@
271 email thread). If this is not the right way to go I will move the patch to other
272 sections of STATUS (stalled or being worked).
273 The code has been tested with a simple PHP script returning different Last-Modified
274 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
277 *) http: Don't remove the Content-Length of zero from a HEAD response if
278 it comes from an origin server, module or script. Allow the previous
279 behaviour (for legacy/buggy modules only, not origin) by also backporting
280 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
281 comes for free with the same commit).
282 trunk patch: http://svn.apache.org/r1554303
283 http://svn.apache.org/r1678215
284 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
286 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
287 ints added at the end of core_server_config, the proposed merge
288 does a minor bump only.
289 minfrin: Two new directives need to be documented.
291 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
292 fetching the request body, so to minimize the delay between it is supposed
293 to be alive and the first bytes sent: this is a best effort to prevent the
294 backend from closing because of idle or keepalive timeout in the meantime.
295 Also, handle a new "proxy-flushall" environment variable which allows to
296 flush any forwarded body data immediately. PR 56541+37920.
297 trunk patch: http://svn.apache.org/r1656259
298 http://svn.apache.org/r1656359 (CHANGES entry)
299 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
301 -0: jim: This seems to be a hit to normal performance, to handle an
302 error and/or non-normal condition. The pre-fetch is
303 expensive, and is always done, even before we know that
304 the backend is available to rec' it. I understand the
305 error described, but is the fix actually worth it (plus
306 it seems to allow for a DDoS vector).
307 ylavic: It seems to me that the problem is real since we reuse the
308 connection before prefetching 16K (either controlled by the
309 client, or by an input filter), we currently always prefetch
310 these bytes already. Regarding performance I don't see any
311 difference (more cycles) compared with the current code.
312 However I think I failed to rebuild the header_brigade when
313 the proxy loop is retried (ping), so I need to rework this.
314 Do you think we'd better remove the prefetch, or maybe just
315 make it nonblocking (by default)?
316 jim: Non-blocking seems the best way to handle...
318 * mod_dav: Allow other modules to become providers and add ACLs
319 to the DAV response. Requires a release of apr-util v1.6.
320 trunk patch: http://svn.apache.org/r1748322
321 2.4.x: trunk works modulo CHANGES/MMN
323 rpluem asks: Will this compile with apr-util < v1.6 and keep
324 mod_dav working (without the new features of the patch of course)?
325 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
326 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
327 minfrin: Yes, as you can see in the patch everything applies only
328 if APR_XML_X2T_PARSED is defined, and the patch was tested with
329 both apr-util v1.6 and apr-util v1.5.
330 -1: jorton, breaks binary backwards compat per dev@ discuss
331 msgid <20160902120654.GA12674@redhat.com>
332 (& also, making the structure change with apr-util version
333 means it breaks binary compat across an apr-util upgrade?)
335 * Support PCRE2 (10.x) in place of PCRE (8.x).
336 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
338 http://svn.apache.org/r1773454
339 http://svn.apache.org/r1773741
340 http://svn.apache.org/r1773742
341 http://svn.apache.org/r1773839
342 http://svn.apache.org/r1773870
343 http://svn.apache.org/r1773882
344 wrowe notes that the current code is too inefficient, owing to the fact
345 that the ovector is a required allocation and is no longer allocated on
346 the stack, by design. The correct fix is an apr userdata allocation on
347 the appropriate pool, which would be thread-safe, but the actual API of
348 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
349 the ap_regex_t, because a single regex may be used by many threads in
350 parallel and is not thread-safe beyond initialization.
351 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
352 this as a thread safe storage buffer for the majority of cases (<10 $args)
353 and we don't have a portable tls mechanism to do so.
356 PATCHES/ISSUES THAT ARE STALLED
358 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
359 backport keeps syslog logging as part of httpd core and only adds
360 API to allow other modules to be used for error logging.
361 trunk patch: http://svn.apache.org/r1525597
362 http://svn.apache.org/r1525664
363 http://svn.apache.org/r1525845
364 http://svn.apache.org/r1527003
365 http://svn.apache.org/r1527005
366 http://svn.apache.org/r1532344
367 http://svn.apache.org/r1539988
368 http://svn.apache.org/r1541029
369 http://svn.apache.org/r1543979
370 http://svn.apache.org/r1544156
371 http://svn.apache.org/r1626978
372 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
374 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
375 needs 2 args which is not valid in ErrorLog manual)
376 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
377 (sorry, haven't finished reviewing completely)
378 jim: What is the status of this??
380 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
381 and ProxyMatch section to distinguish between normal workers and workers
382 with regex substitutions in the name. Implement handling of such workers
383 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
384 matched and used for request. PR 43513.
385 trunk patch: http://svn.apache.org/r1609680
386 http://svn.apache.org/r1609688
387 http://svn.apache.org/r1641381
388 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
389 Also added missing r1609688 to the patchset.
390 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
392 -0: covener tried to review this one in Austin with Jeff. Does the added match function
393 really cover a very narrow set of parameters with the way it skips over backreferences?
394 Also, why a new API vs. just setting the field inline?
396 * mod_systemd: New module, for integration with systemd on Linux.
397 trunk patch: http://svn.apache.org/r1393976
398 http://svn.apache.org/r1393997
399 http://svn.apache.org/r1484554
400 http://svn.apache.org/r1528032
401 http://svn.apache.org/r1528034
402 http://svn.apache.org/r1614821
403 http://svn.apache.org/r1618579
404 http://svn.apache.org/r1618588
405 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
407 sf comments: The IdleShutdown logic seems broken. Consider a single
408 active connection that is stalled for 10 seconds. That
409 connection will be broken after GracefulShutdownTimeout.
410 A better logic would be to check if there is any open
411 connection that is not in keep-alive state.
413 * core: Add support for systemd socket activation.
414 trunk patch: http://svn.apache.org/r1511033
415 http://svn.apache.org/r1608686
416 http://svn.apache.org/r1608694
417 http://svn.apache.org/r1608703
418 http://svn.apache.org/r1608721
419 http://svn.apache.org/r1608744
420 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
423 * mod_proxy: Ensure network errors detected by the proxy are returned as
424 504 Gateway Timeout as opposed to 502 Bad Gateway
425 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
426 2.4.x patch: trunk patch works modulo CHANGES
428 -1: rpluem: This change is still disputed. See
429 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
431 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
432 compiled by the build compiler instead of the host compiler.
433 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
434 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
435 http://svn.apache.org/viewvc?view=revision&revision=1328390
436 http://svn.apache.org/viewvc?view=revision&revision=1328714
437 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
438 fuankg: on hold until we agree for a better and more simple solution ...
440 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
441 Moved fixing of shebang to separate target so that it is
442 no longer executed by default and all CGIs remain inactive.
443 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
444 http://svn.apache.org/viewvc?view=revision&revision=1421203
445 http://svn.apache.org/viewvc?view=revision&revision=1421591
446 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
449 This commit is essentially deciding that an httpd install on
450 Windows now has printenv/testcgi written in 2 more languages.
451 To the extent that the usefulness is that it shows how to make scripts
452 of these types executable by httpd, I believe that the documentation
453 is the proper place to solve that. To the extent that the usefullness
454 is to show how to implement a CGI in these particular languages, I believe
455 that the httpd distribution and documentation in general is not the
456 place for that. Historically these types of scripts have caused problems
457 for downstream vendorsas well as newbies (and sometimes the intersection
458 of those two groups) who don't understand that these are information leaks
459 once they are enabled, and the subtlety of the way they are disabled ("Apache
460 messed up the first line; let me fix that") contributes to that.
461 fuankg notes: I've just added a big warning to all CGI scripts which should now
462 make absolutely clear that these CGIs are for testing purpose only - so those
463 who enable those scripts with inserting the right shebang should be 100% aware
464 of any risks (this should cover your last point).
465 jim: trawick, does the above address your concerns?
466 trawick: to some extent (somebody reading the script gets an idea)
467 Why isn't the configuration requirement documented instead
468 of described indirectly in a sample?
469 Why are these new samples added to the install without three
470 votes? (I didn't veto it; put your name next to the two
471 existing ones and I'll be satisfied that enough people
472 considered this addition as an appropriate solution for a
473 real httpd usability problem.)
474 wrowe: I'd agree with trawick, and suggest that these scripts can begin
475 their life somewhere in the manual/ tree. This really seems like
476 the place where /usr/share/httpd/examples/ would be useful, but
477 there isn't an ordinary directory for that. Since we want none
478 of the scripts to function 'out of the box', what about a new
479 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
482 * core: block Define and Undefine in vhost and directory context. Because
483 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
484 trunk patch: http://svn.apache.org/r1656063
485 http://svn.apache.org/r1656122
486 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
487 +1: covener (I need to review the docs manually in this area)
488 -1: wrowe (blocking will break "working" .conf files on a subversion update
489 meant to pick up security fixes. "Alerting" I would agree to.)