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 Documentation status is maintained separately and can be found at:
10 * docs/STATUS in this source tree, or
11 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/docs/STATUS
13 The current development branch of this software can be found at:
15 * http://svn.apache.org/repos/asf/httpd/httpd/trunk
17 Consult the following STATUS files for information on related projects:
19 * http://svn.apache.org/repos/asf/apr/apr/trunk/STATUS
20 * http://svn.apache.org/repos/asf/apr/apr/branches/1.4.x/STATUS
21 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.4.x/STATUS
22 * http://svn.apache.org/repos/asf/apr/apr/branches/1.5.x/STATUS
23 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.5.x/STATUS
25 Patches considered for backport are noted in their branches' STATUS:
27 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x/STATUS
28 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/STATUS
29 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
34 [NOTE that x.{odd}.z versions are strictly Alpha/Beta releases,
35 while x.{even}.z versions are Stable/GA releases.]
37 2.4.26 : In development.
38 2.4.25 : Tagged on December 16, 2016. Released on December 21, 2016.
39 2.4.24 : Tagged on December 16, 2016, not released.
40 2.4.23 : Tagged on June 30, 2016. Released on July 05, 2016.
41 2.4.22 : Tagged on June 20, 2016, not released.
42 2.4.21 : Tagged on June 16, 2016, not released.
43 2.4.20 : Tagged on April 4, 2016. Released on April 11, 2016.
44 2.4.19 : Tagged on March 21, 2016, not released.
45 2.4.18 : Tagged on December 8, 2015. Released on December 14, 2015.
46 2.4.17 : Tagged on October 9, 2015. Released October 13, 2015.
47 2.4.16 : Tagged on July 9, 2015. Released July 15, 2015
48 2.4.15 : Tagged on June 19, 2015. Not released.
49 2.4.14 : Tagged on June 11, 2015. Not released.
50 2.4.13 : Tagged on June 4, 2015. Not released.
51 2.4.12 : Tagged on January 22, 2015. Released Jan 29, 2015
52 2.4.11 : Tagged on January 15, 2015. Not released.
53 2.4.10 : Tagged on July 15, 2014. Released July 21, 2014
54 2.4.9 : Tagged on March 13, 2014. Released on March 17, 2014
55 2.4.8 : Tagged on March 11, 2014. Not released.
56 2.4.7 : Tagged on November 19, 2013. Released on Nov 25, 2013
57 2.4.6 : Tagged on July 15, 2013. Released July, 22, 2013
58 2.4.5 : Tagged on July 11, 2013, not released.
59 2.4.4 : Tagged on February 18, 2013. Released Feb 25, 2013
60 2.4.3 : Tagged on August 17, 2012. Released Aug 18, 2012
61 2.4.2 : Tagged on April 5, 2012. Released Apr 17, 2012.
62 2.4.1 : Tagged on February 13, 2012. Released Feb 21, 2012.
63 2.4.0 : Tagged on January 16, 2012, not released.
64 2.3.16 : Tagged on December 15, 2011.
65 2.3.15 : Tagged on November 8, 2011. Released Nov. 15, 2011.
66 2.3.14 : Tagged on August 1, 2011. Released Aug. 9, 2011.
67 2.3.13 : Tagged on June 28, 2011, not released.
68 2.3.12 : Tagged on May 11, 2011. Released May 23, 2011.
69 2.3.11 : Released as Beta on March 7, 2011.
70 2.3.10 : Tagged on December 13, 2010. Released Dec 21, 2010.
71 2.3.9 : Tagged on November 23, 2010, not released.
72 2.3.8 : Tagged on August 24, 2010.
73 2.3.7 : Tagged on August 19, 2010, not released.
74 2.3.6 : Released on June 21, 2010.
75 2.3.5 : Released on January 26, 2010.
76 2.3.4 : Released on December 8, 2009.
77 2.3.3 : Tagged on November 11, 2009, not released.
78 2.3.2 : Tagged on March 23, 2009, not released.
79 2.3.1 : Tagged on January 2, 2009, not released.
80 2.3.0 : Tagged on December 6, 2008, not released.
82 Contributors looking for a mission:
84 * Just do an egrep on "TODO" or "XXX" in the source.
86 * Review the bug database at: http://issues.apache.org/bugzilla/
88 * Review the "PatchAvailable" bugs in the bug database:
90 https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable
92 After testing, you can append a comment saying "Reviewed and tested".
94 * Open bugs in the bug database.
96 * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.
99 CURRENT RELEASE NOTES:
101 * Forward binary compatibility is expected of Apache 2.4.x releases, such
102 that no MMN major number changes will occur after 2.4.1. Such changes can
103 only be made in the trunk.
105 * All commits to branches/2.4.x must be reflected in SVN trunk,
106 as well, if they apply. Logical progression is commit to trunk
107 then merge into branches/2.4.x, as applicable.
109 * Current exceptions for RTC for this branch:
114 . non-Unix, single-platform code
116 RELEASE SHOWSTOPPERS:
120 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
121 [ start all new proposals below, under PATCHES PROPOSED. ]
123 *) core: ap_parse_form_data() doesn't work on EBCDIC systems. PR61124.
124 trunk patch: http://svn.apache.org/r1796446
125 2.4.x patch: svn merge -c 1796446 ^/httpd/httpd/trunk .
126 +1: covener, rjung, ylavic
128 *) mod_rewrite: allow users to workaround the over-agressive backreference
129 escaping by selecting the characters to escape
130 mod_rewrite: add BNP flag (backrefnoplus)
131 trunk patch: http://svn.apache.org/r1584417
132 http://svn.apache.org/r1585157
133 2.4.x patch: http://home.apache.org/~jailletc36/BNP.diff
134 (mod_rewrite.xml from r1584417 has already been eroneously merged
135 with r1728060 + tweak taken from r1701545 partly backported in r1703403.
136 I have also added an entry for r1584417)
137 +1: jailletc36, covener, ylavic
139 *) mod_rewrite: When a substitution is a fully qualified URL, and the
140 scheme/host/port matches the current virtual host, stop interpreting the
141 path component as a local path just because the first component of the
142 path exists in the filesystem. Adds RewriteOption "LegacyPrefixDocRoot"
143 to revert to previous behavior. PR60009.
144 trunk patch: http://svn.apache.org/r1776463
145 2.4.x patch: svn merge -c 1776463 1776708 ^/httpd/httpd/trunk .
146 +1: covener, jim, ylavic
148 *) mod_env: When processing a 'SetEnv' directive, warn if the environment
149 variable name includes a '='. It is likely a configuration error.
151 trunk patch: http://svn.apache.org/r1795635
152 2.4.x patch: svn merge -c 1795635 ^/httpd/httpd/trunk . (modulo CHANGES)
153 +1: jailletc36, covener, ylavic
155 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
156 [ New proposals should be added at the end of the list ]
158 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
159 allowing per backend TLS configuration.
160 trunk patch: http://svn.apache.org/r1740928
161 http://svn.apache.org/r1740960
162 http://svn.apache.org/r1740967
163 http://svn.apache.org/r1740987
164 http://svn.apache.org/r1740998
165 http://svn.apache.org/r1742697
166 http://svn.apache.org/r1756976
167 http://svn.apache.org/r1781313
168 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
171 *) mod_remoteip: Add PROXY protocol support
172 trunk patch: http://svn.apache.org/r1776575
173 http://svn.apache.org/r1776578 (doc fix)
174 http://svn.apache.org/r1776627 (shortened name + doc fix)
175 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
176 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
177 http://svn.apache.org/r1778268 (fix compiler warning)
178 http://svn.apache.org/r1780725 (set buckets aside)
179 http://svn.apache.org/r1781030 (fix strict GCC warning)
180 http://svn.apache.org/r1781031 (reference the filter by handle)
181 http://svn.apache.org/r1781701 (rework optional processing case)
182 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
183 http://svn.apache.org/r1789800 (remove optional processing)
184 http://svn.apache.org/r1790169 (rename "exception" directive)
185 http://svn.apache.org/r1790457 (Update directive name in err message)
186 2.4 convenience patch (includes CHANGES):
187 http://people.apache.org/~druggeri/patches/RemoteIPProxyProtocol.2.4.x.patch
190 * mod_journald: Add new module mod_journald to log error logs into journald.
191 trunk patch: http://svn.apache.org/r1610339
192 http://svn.apache.org/r1621806
193 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
195 jchampion: Looks like the headers require GCC extensions to compile, so
196 mod_journald can't be configured in maintainer mode (-std=c89).
197 Can anyone else reproduce, or is it just my distro?
199 *) core: Disallow multiple Listen on the same IP:port when listener buckets
200 are configured (ListenCoresBucketsRatio > 0), consistently with the single
201 bucket case (default), thus avoiding the leak of the corresponding socket
202 descriptors on graceful restart.
203 trunk patch: http://svn.apache.org/r1789220
204 http://svn.apache.org/r1792675
205 2.4.x patch: trunk works (modulo CHANGES)
208 *) mod_ssl: Consistently pass the expected bio_filter_in_ctx_t
209 to ssl_io_filter_error(). [Yann Ylavic]
210 trunk patch: http://svn.apache.org/r1796343
211 2.4.x patch: svn merge -c 1796343 ^/httpd/httpd/trunk . (modulo CHANGES)
214 *) core: Deprecate ap_get_basic_auth_pw() and add
215 ap_get_basic_auth_components().
216 trunk patch: http://svn.apache.org/r1796348
217 2.4.x patch: http://people.apache.org/~covener/patches/httpd-2.4.x-ap_get_basic_auth_pw.diff + CHANGES
220 *) core: Terminate token processing on NULL.
221 trunk patch: http://svn.apache.org/r1796350
222 2.4.x patch: svn merge -c 1796350 ^/httpd/httpd/trunk .
225 *) event: Avoid listener periodic wake ups by using the pollset wake-ability
226 when available. PR 57399.
227 trunk patch: http://svn.apache.org/r1762580
228 http://svn.apache.org/r1762701
229 http://svn.apache.org/r1762702
230 http://svn.apache.org/r1762718
231 http://svn.apache.org/r1762723
232 http://svn.apache.org/r1762742
233 http://svn.apache.org/r1762743
234 http://svn.apache.org/r1774538
235 http://svn.apache.org/r1779354
236 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-mpm_event-wakeup-v7.1.patch
240 PATCHES/ISSUES THAT ARE BEING WORKED
241 [ New entried should be added at the START of the list ]
243 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
244 proxy_post_handshake hook fails.
245 Trunk patch: r1645529 (works)
246 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
248 ylavic: there may be missing bits, see thread for commit r1736510.
250 *) core: Drop an invalid Last-Modified header value coming
251 from a (F)CGI script instead of replacing it with Unix epoch.
252 Warn the users about Last-Modified header value replacements
253 and violations of the RFC.
254 trunk patch: http://svn.apache.org/r1748379
255 http://svn.apache.org/r1750747
256 http://svn.apache.org/r1750749
257 http://svn.apache.org/r1750953
258 http://svn.apache.org/r1751138
259 http://svn.apache.org/r1751139
260 http://svn.apache.org/r1751147
261 http://svn.apache.org/r1757818
262 2.4.x: trunk patches work, final view:
263 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
264 The problem has been discussed in dev@ extensively but we did not reach a common
265 agreement about how to proceed in the long term. While we wait, I would really like
266 to introduce useful logs for the users (the starting point of this change was a users@
267 email thread). If this is not the right way to go I will move the patch to other
268 sections of STATUS (stalled or being worked).
269 The code has been tested with a simple PHP script returning different Last-Modified
270 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
273 *) http: Don't remove the Content-Length of zero from a HEAD response if
274 it comes from an origin server, module or script. Allow the previous
275 behaviour (for legacy/buggy modules only, not origin) by also backporting
276 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
277 comes for free with the same commit).
278 trunk patch: http://svn.apache.org/r1554303
279 http://svn.apache.org/r1678215
280 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
282 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
283 ints added at the end of core_server_config, the proposed merge
284 does a minor bump only.
285 minfrin: Two new directives need to be documented.
287 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
288 fetching the request body, so to minimize the delay between it is supposed
289 to be alive and the first bytes sent: this is a best effort to prevent the
290 backend from closing because of idle or keepalive timeout in the meantime.
291 Also, handle a new "proxy-flushall" environment variable which allows to
292 flush any forwarded body data immediately. PR 56541+37920.
293 trunk patch: http://svn.apache.org/r1656259
294 http://svn.apache.org/r1656359 (CHANGES entry)
295 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
297 -0: jim: This seems to be a hit to normal performance, to handle an
298 error and/or non-normal condition. The pre-fetch is
299 expensive, and is always done, even before we know that
300 the backend is available to rec' it. I understand the
301 error described, but is the fix actually worth it (plus
302 it seems to allow for a DDoS vector).
303 ylavic: It seems to me that the problem is real since we reuse the
304 connection before prefetching 16K (either controlled by the
305 client, or by an input filter), we currently always prefetch
306 these bytes already. Regarding performance I don't see any
307 difference (more cycles) compared with the current code.
308 However I think I failed to rebuild the header_brigade when
309 the proxy loop is retried (ping), so I need to rework this.
310 Do you think we'd better remove the prefetch, or maybe just
311 make it nonblocking (by default)?
312 jim: Non-blocking seems the best way to handle...
314 * mod_dav: Allow other modules to become providers and add ACLs
315 to the DAV response. Requires a release of apr-util v1.6.
316 trunk patch: http://svn.apache.org/r1748322
317 2.4.x: trunk works modulo CHANGES/MMN
319 rpluem asks: Will this compile with apr-util < v1.6 and keep
320 mod_dav working (without the new features of the patch of course)?
321 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
322 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
323 minfrin: Yes, as you can see in the patch everything applies only
324 if APR_XML_X2T_PARSED is defined, and the patch was tested with
325 both apr-util v1.6 and apr-util v1.5.
326 -1: jorton, breaks binary backwards compat per dev@ discuss
327 msgid <20160902120654.GA12674@redhat.com>
328 (& also, making the structure change with apr-util version
329 means it breaks binary compat across an apr-util upgrade?)
331 * Support PCRE2 (10.x) in place of PCRE (8.x).
332 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
334 http://svn.apache.org/r1773454
335 http://svn.apache.org/r1773741
336 http://svn.apache.org/r1773742
337 http://svn.apache.org/r1773839
338 http://svn.apache.org/r1773870
339 http://svn.apache.org/r1773882
340 wrowe notes that the current code is too inefficient, owing to the fact
341 that the ovector is a required allocation and is no longer allocated on
342 the stack, by design. The correct fix is an apr userdata allocation on
343 the appropriate pool, which would be thread-safe, but the actual API of
344 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
345 the ap_regex_t, because a single regex may be used by many threads in
346 parallel and is not thread-safe beyond initialization.
347 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
348 this as a thread safe storage buffer for the majority of cases (<10 $args)
349 and we don't have a portable tls mechanism to do so.
352 PATCHES/ISSUES THAT ARE STALLED
354 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
355 backport keeps syslog logging as part of httpd core and only adds
356 API to allow other modules to be used for error logging.
357 trunk patch: http://svn.apache.org/r1525597
358 http://svn.apache.org/r1525664
359 http://svn.apache.org/r1525845
360 http://svn.apache.org/r1527003
361 http://svn.apache.org/r1527005
362 http://svn.apache.org/r1532344
363 http://svn.apache.org/r1539988
364 http://svn.apache.org/r1541029
365 http://svn.apache.org/r1543979
366 http://svn.apache.org/r1544156
367 http://svn.apache.org/r1626978
368 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
370 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
371 needs 2 args which is not valid in ErrorLog manual)
372 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
373 (sorry, haven't finished reviewing completely)
374 jim: What is the status of this??
376 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
377 and ProxyMatch section to distinguish between normal workers and workers
378 with regex substitutions in the name. Implement handling of such workers
379 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
380 matched and used for request. PR 43513.
381 trunk patch: http://svn.apache.org/r1609680
382 http://svn.apache.org/r1609688
383 http://svn.apache.org/r1641381
384 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
385 Also added missing r1609688 to the patchset.
386 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
388 -0: covener tried to review this one in Austin with Jeff. Does the added match function
389 really cover a very narrow set of parameters with the way it skips over backreferences?
390 Also, why a new API vs. just setting the field inline?
392 * mod_systemd: New module, for integration with systemd on Linux.
393 trunk patch: http://svn.apache.org/r1393976
394 http://svn.apache.org/r1393997
395 http://svn.apache.org/r1484554
396 http://svn.apache.org/r1528032
397 http://svn.apache.org/r1528034
398 http://svn.apache.org/r1614821
399 http://svn.apache.org/r1618579
400 http://svn.apache.org/r1618588
401 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
403 sf comments: The IdleShutdown logic seems broken. Consider a single
404 active connection that is stalled for 10 seconds. That
405 connection will be broken after GracefulShutdownTimeout.
406 A better logic would be to check if there is any open
407 connection that is not in keep-alive state.
409 * core: Add support for systemd socket activation.
410 trunk patch: http://svn.apache.org/r1511033
411 http://svn.apache.org/r1608686
412 http://svn.apache.org/r1608694
413 http://svn.apache.org/r1608703
414 http://svn.apache.org/r1608721
415 http://svn.apache.org/r1608744
416 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
419 * mod_proxy: Ensure network errors detected by the proxy are returned as
420 504 Gateway Timeout as opposed to 502 Bad Gateway
421 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
422 2.4.x patch: trunk patch works modulo CHANGES
424 -1: rpluem: This change is still disputed. See
425 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
427 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
428 compiled by the build compiler instead of the host compiler.
429 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
430 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
431 http://svn.apache.org/viewvc?view=revision&revision=1328390
432 http://svn.apache.org/viewvc?view=revision&revision=1328714
433 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
434 fuankg: on hold until we agree for a better and more simple solution ...
436 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
437 Moved fixing of shebang to separate target so that it is
438 no longer executed by default and all CGIs remain inactive.
439 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
440 http://svn.apache.org/viewvc?view=revision&revision=1421203
441 http://svn.apache.org/viewvc?view=revision&revision=1421591
442 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
445 This commit is essentially deciding that an httpd install on
446 Windows now has printenv/testcgi written in 2 more languages.
447 To the extent that the usefulness is that it shows how to make scripts
448 of these types executable by httpd, I believe that the documentation
449 is the proper place to solve that. To the extent that the usefullness
450 is to show how to implement a CGI in these particular languages, I believe
451 that the httpd distribution and documentation in general is not the
452 place for that. Historically these types of scripts have caused problems
453 for downstream vendorsas well as newbies (and sometimes the intersection
454 of those two groups) who don't understand that these are information leaks
455 once they are enabled, and the subtlety of the way they are disabled ("Apache
456 messed up the first line; let me fix that") contributes to that.
457 fuankg notes: I've just added a big warning to all CGI scripts which should now
458 make absolutely clear that these CGIs are for testing purpose only - so those
459 who enable those scripts with inserting the right shebang should be 100% aware
460 of any risks (this should cover your last point).
461 jim: trawick, does the above address your concerns?
462 trawick: to some extent (somebody reading the script gets an idea)
463 Why isn't the configuration requirement documented instead
464 of described indirectly in a sample?
465 Why are these new samples added to the install without three
466 votes? (I didn't veto it; put your name next to the two
467 existing ones and I'll be satisfied that enough people
468 considered this addition as an appropriate solution for a
469 real httpd usability problem.)
470 wrowe: I'd agree with trawick, and suggest that these scripts can begin
471 their life somewhere in the manual/ tree. This really seems like
472 the place where /usr/share/httpd/examples/ would be useful, but
473 there isn't an ordinary directory for that. Since we want none
474 of the scripts to function 'out of the box', what about a new
475 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
478 * core: block Define and Undefine in vhost and directory context. Because
479 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
480 trunk patch: http://svn.apache.org/r1656063
481 http://svn.apache.org/r1656122
482 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
483 +1: covener (I need to review the docs manually in this area)
484 -1: wrowe (blocking will break "working" .conf files on a subversion update
485 meant to pick up security fixes. "Alerting" I would agree to.)