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
29 [NOTE that x.{odd}.z versions are strictly Alpha/Beta releases,
30 while x.{even}.z versions are Stable/GA releases.]
32 2.4.29 : In development.
33 2.4.28 : Tagged on September 25, 2017.
34 2.4.27 : Tagged on July 6, 2017. Released on July 11, 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. ]
119 *) mod_authz_dbd: Fix a segmentation fault if AuthzDBDQuery is not set.
121 trunk patch: http://svn.apache.org/r1809209
122 2.4.x patch: svn merge -c 1809209 ^/httpd/httpd/trunk .
123 +1: jailletc36 (by inspection), ylavic, elukey
125 *) mod_http2: Fix race condition on request body handlign.
126 2.4.x patch: svn merge -c 1804096,1807238,1809981,1810088,1810089 ^/httpd/httpd/trunk .
127 +1: icing, steffenal, ylavic
128 ylavic: Not sure about MOD_HTTP2_VERSION[_NUM] from the above merge.
129 Shouldn't it be 1.10.11 instead of 1.10.12-DEV?
132 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
133 [ New proposals should be added at the end of the list ]
135 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
136 allowing per backend TLS configuration.
137 trunk patch: http://svn.apache.org/r1740928
138 http://svn.apache.org/r1740960
139 http://svn.apache.org/r1740967
140 http://svn.apache.org/r1740987
141 http://svn.apache.org/r1740998
142 http://svn.apache.org/r1742697
143 http://svn.apache.org/r1756976
144 http://svn.apache.org/r1781313
145 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
147 mrumph: Since this has been sitting for awhile, there are several places
148 where this patch needs to be adjusted against recent changes to 2.4.x.
149 ylavic: With current 2.4.x (r1807662), there seems to be only a conflict with
150 MMN, which can probably be taken by the backporter. I don't see the
151 other places where it needs adjustments, Mike?
153 *) mod_remoteip: Add PROXY protocol support
154 trunk patch: http://svn.apache.org/r1776575
155 http://svn.apache.org/r1776578 (doc fix)
156 http://svn.apache.org/r1776627 (shortened name + doc fix)
157 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
158 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
159 http://svn.apache.org/r1778268 (fix compiler warning)
160 http://svn.apache.org/r1780725 (set buckets aside)
161 http://svn.apache.org/r1781030 (fix strict GCC warning)
162 http://svn.apache.org/r1781031 (reference the filter by handle)
163 http://svn.apache.org/r1781701 (rework optional processing case)
164 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
165 http://svn.apache.org/r1789800 (remove optional processing)
166 http://svn.apache.org/r1790169 (rename "exception" directive)
167 http://svn.apache.org/r1790457 (Update directive name in err message)
168 http://svn.apache.org/r1806985
169 2.4 convenience patch (includes CHANGES):
170 http://home.apache.org/~jim/patches/RemoteIPProxyProtocol.2.4.x.patch
171 http://svn.apache.org/r1806985
173 mrumph: I had a chance to review this proposal.
174 I committed some suggested changes to trunk in r1806985.
175 Also, the copyright in mod_remoteip.c is of some concern.
176 Perhaps the terms of the copyright should be included in that note.
177 And on a personal note, today is my last day with Oracle.
178 So it may well be my last day with Apache as well.
179 It has been great working with all of you.
180 jim: Not sure what the copyright concern is, but added r1806985
182 ylavic: RemoteIPProxyProtocol* are documented as scoped to server config
183 and virtual host, though using ap_server_conf makes them global
184 only (thus less useful too...).
186 *) mod_journald: Add new module mod_journald to log error logs into journald.
187 trunk patch: http://svn.apache.org/r1610339
188 http://svn.apache.org/r1621806
189 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
191 jchampion: Looks like the headers require GCC extensions to compile, so
192 mod_journald can't be configured in maintainer mode (-std=c89).
193 Can anyone else reproduce, or is it just my distro?
195 *) Quiet spurious gcc warning in ap_parse_form_data
196 trunk patch: http://svn.apache.org/r1798785
197 2.4.x patch: svn merge -c 1798785 ^/httpd/httpd/trunk .
198 +1: jailletc36, ylavic
200 *) mod_rewrite,core: Avoid the 'Vary: Host' response header when HTTP_HOST
201 is used in a condition that evaluates to true.
202 trunk patch: http://svn.apache.org/r1808746
203 http://svn.apache.org/r1809028
204 2.4.x patch: svn merge -c 1808746,1809028 ^/httpd/httpd/trunk .
207 PATCHES/ISSUES THAT ARE BEING WORKED
208 [ New entries should be added at the START of the list ]
210 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
211 proxy_post_handshake hook fails.
212 Trunk patch: r1645529 (works)
213 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
215 ylavic: there may be missing bits, see thread for commit r1736510.
217 *) core: Drop an invalid Last-Modified header value coming
218 from a (F)CGI script instead of replacing it with Unix epoch.
219 Warn the users about Last-Modified header value replacements
220 and violations of the RFC.
221 trunk patch: http://svn.apache.org/r1748379
222 http://svn.apache.org/r1750747
223 http://svn.apache.org/r1750749
224 http://svn.apache.org/r1750953
225 http://svn.apache.org/r1751138
226 http://svn.apache.org/r1751139
227 http://svn.apache.org/r1751147
228 http://svn.apache.org/r1757818
229 2.4.x: trunk patches work, final view:
230 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
231 The problem has been discussed in dev@ extensively but we did not reach a common
232 agreement about how to proceed in the long term. While we wait, I would really like
233 to introduce useful logs for the users (the starting point of this change was a users@
234 email thread). If this is not the right way to go I will move the patch to other
235 sections of STATUS (stalled or being worked).
236 The code has been tested with a simple PHP script returning different Last-Modified
237 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
240 *) http: Don't remove the Content-Length of zero from a HEAD response if
241 it comes from an origin server, module or script. Allow the previous
242 behaviour (for legacy/buggy modules only, not origin) by also backporting
243 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
244 comes for free with the same commit).
245 trunk patch: http://svn.apache.org/r1554303
246 http://svn.apache.org/r1678215
247 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
249 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
250 ints added at the end of core_server_config, the proposed merge
251 does a minor bump only.
252 minfrin: Two new directives need to be documented.
254 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
255 fetching the request body, so to minimize the delay between it is supposed
256 to be alive and the first bytes sent: this is a best effort to prevent the
257 backend from closing because of idle or keepalive timeout in the meantime.
258 Also, handle a new "proxy-flushall" environment variable which allows to
259 flush any forwarded body data immediately. PR 56541+37920.
260 trunk patch: http://svn.apache.org/r1656259
261 http://svn.apache.org/r1656359 (CHANGES entry)
262 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
264 -0: jim: This seems to be a hit to normal performance, to handle an
265 error and/or non-normal condition. The pre-fetch is
266 expensive, and is always done, even before we know that
267 the backend is available to rec' it. I understand the
268 error described, but is the fix actually worth it (plus
269 it seems to allow for a DDoS vector).
270 ylavic: It seems to me that the problem is real since we reuse the
271 connection before prefetching 16K (either controlled by the
272 client, or by an input filter), we currently always prefetch
273 these bytes already. Regarding performance I don't see any
274 difference (more cycles) compared with the current code.
275 However I think I failed to rebuild the header_brigade when
276 the proxy loop is retried (ping), so I need to rework this.
277 Do you think we'd better remove the prefetch, or maybe just
278 make it nonblocking (by default)?
279 jim: Non-blocking seems the best way to handle...
281 * mod_dav: Allow other modules to become providers and add ACLs
282 to the DAV response. Requires a release of apr-util v1.6.
283 trunk patch: http://svn.apache.org/r1748322
284 2.4.x: trunk works modulo CHANGES/MMN
286 rpluem asks: Will this compile with apr-util < v1.6 and keep
287 mod_dav working (without the new features of the patch of course)?
288 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
289 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
290 minfrin: Yes, as you can see in the patch everything applies only
291 if APR_XML_X2T_PARSED is defined, and the patch was tested with
292 both apr-util v1.6 and apr-util v1.5.
293 -1: jorton, breaks binary backwards compat per dev@ discuss
294 msgid <20160902120654.GA12674@redhat.com>
295 (& also, making the structure change with apr-util version
296 means it breaks binary compat across an apr-util upgrade?)
298 * Support PCRE2 (10.x) in place of PCRE (8.x).
299 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
301 http://svn.apache.org/r1773454
302 http://svn.apache.org/r1773741
303 http://svn.apache.org/r1773742
304 http://svn.apache.org/r1773839
305 http://svn.apache.org/r1773870
306 http://svn.apache.org/r1773882
307 wrowe notes that the current code is too inefficient, owing to the fact
308 that the ovector is a required allocation and is no longer allocated on
309 the stack, by design. The correct fix is an apr userdata allocation on
310 the appropriate pool, which would be thread-safe, but the actual API of
311 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
312 the ap_regex_t, because a single regex may be used by many threads in
313 parallel and is not thread-safe beyond initialization.
314 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
315 this as a thread safe storage buffer for the majority of cases (<10 $args)
316 and we don't have a portable tls mechanism to do so.
319 PATCHES/ISSUES THAT ARE STALLED
321 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
322 backport keeps syslog logging as part of httpd core and only adds
323 API to allow other modules to be used for error logging.
324 trunk patch: http://svn.apache.org/r1525597
325 http://svn.apache.org/r1525664
326 http://svn.apache.org/r1525845
327 http://svn.apache.org/r1527003
328 http://svn.apache.org/r1527005
329 http://svn.apache.org/r1532344
330 http://svn.apache.org/r1539988
331 http://svn.apache.org/r1541029
332 http://svn.apache.org/r1543979
333 http://svn.apache.org/r1544156
334 http://svn.apache.org/r1626978
335 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
337 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
338 needs 2 args which is not valid in ErrorLog manual)
339 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
340 (sorry, haven't finished reviewing completely)
341 jim: What is the status of this??
343 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
344 and ProxyMatch section to distinguish between normal workers and workers
345 with regex substitutions in the name. Implement handling of such workers
346 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
347 matched and used for request. PR 43513.
348 trunk patch: http://svn.apache.org/r1609680
349 http://svn.apache.org/r1609688
350 http://svn.apache.org/r1641381
351 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
352 Also added missing r1609688 to the patchset.
353 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
355 -0: covener tried to review this one in Austin with Jeff. Does the added match function
356 really cover a very narrow set of parameters with the way it skips over backreferences?
357 Also, why a new API vs. just setting the field inline?
359 * mod_systemd: New module, for integration with systemd on Linux.
360 trunk patch: http://svn.apache.org/r1393976
361 http://svn.apache.org/r1393997
362 http://svn.apache.org/r1484554
363 http://svn.apache.org/r1528032
364 http://svn.apache.org/r1528034
365 http://svn.apache.org/r1614821
366 http://svn.apache.org/r1618579
367 http://svn.apache.org/r1618588
368 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
370 sf comments: The IdleShutdown logic seems broken. Consider a single
371 active connection that is stalled for 10 seconds. That
372 connection will be broken after GracefulShutdownTimeout.
373 A better logic would be to check if there is any open
374 connection that is not in keep-alive state.
376 * core: Add support for systemd socket activation.
377 trunk patch: http://svn.apache.org/r1511033
378 http://svn.apache.org/r1608686
379 http://svn.apache.org/r1608694
380 http://svn.apache.org/r1608703
381 http://svn.apache.org/r1608721
382 http://svn.apache.org/r1608744
383 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
386 * mod_proxy: Ensure network errors detected by the proxy are returned as
387 504 Gateway Timeout as opposed to 502 Bad Gateway
388 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
389 2.4.x patch: trunk patch works modulo CHANGES
391 -1: rpluem: This change is still disputed. See
392 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
394 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
395 compiled by the build compiler instead of the host compiler.
396 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
397 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
398 http://svn.apache.org/viewvc?view=revision&revision=1328390
399 http://svn.apache.org/viewvc?view=revision&revision=1328714
400 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
401 fuankg: on hold until we agree for a better and more simple solution ...
403 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
404 Moved fixing of shebang to separate target so that it is
405 no longer executed by default and all CGIs remain inactive.
406 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
407 http://svn.apache.org/viewvc?view=revision&revision=1421203
408 http://svn.apache.org/viewvc?view=revision&revision=1421591
409 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
412 This commit is essentially deciding that an httpd install on
413 Windows now has printenv/testcgi written in 2 more languages.
414 To the extent that the usefulness is that it shows how to make scripts
415 of these types executable by httpd, I believe that the documentation
416 is the proper place to solve that. To the extent that the usefullness
417 is to show how to implement a CGI in these particular languages, I believe
418 that the httpd distribution and documentation in general is not the
419 place for that. Historically these types of scripts have caused problems
420 for downstream vendorsas well as newbies (and sometimes the intersection
421 of those two groups) who don't understand that these are information leaks
422 once they are enabled, and the subtlety of the way they are disabled ("Apache
423 messed up the first line; let me fix that") contributes to that.
424 fuankg notes: I've just added a big warning to all CGI scripts which should now
425 make absolutely clear that these CGIs are for testing purpose only - so those
426 who enable those scripts with inserting the right shebang should be 100% aware
427 of any risks (this should cover your last point).
428 jim: trawick, does the above address your concerns?
429 trawick: to some extent (somebody reading the script gets an idea)
430 Why isn't the configuration requirement documented instead
431 of described indirectly in a sample?
432 Why are these new samples added to the install without three
433 votes? (I didn't veto it; put your name next to the two
434 existing ones and I'll be satisfied that enough people
435 considered this addition as an appropriate solution for a
436 real httpd usability problem.)
437 wrowe: I'd agree with trawick, and suggest that these scripts can begin
438 their life somewhere in the manual/ tree. This really seems like
439 the place where /usr/share/httpd/examples/ would be useful, but
440 there isn't an ordinary directory for that. Since we want none
441 of the scripts to function 'out of the box', what about a new
442 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
445 * core: block Define and Undefine in vhost and directory context. Because
446 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
447 trunk patch: http://svn.apache.org/r1656063
448 http://svn.apache.org/r1656122
449 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
450 +1: covener (I need to review the docs manually in this area)
451 -1: wrowe (blocking will break "working" .conf files on a subversion update
452 meant to pick up security fixes. "Alerting" I would agree to.)