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 2.4.28 : In development.
33 2.4.27 : Tagged on July 6, 2017. Released on July 11, 2017.
34 2.4.26 : Tagged on June 13, 2017. Released on June 19, 2017.
35 2.4.25 : Tagged on December 16, 2016. Released on December 21, 2016.
36 2.4.24 : Tagged on December 16, 2016, not released.
37 2.4.23 : Tagged on June 30, 2016. Released on July 05, 2016.
38 2.4.22 : Tagged on June 20, 2016, not released.
39 2.4.21 : Tagged on June 16, 2016, not released.
40 2.4.20 : Tagged on April 4, 2016. Released on April 11, 2016.
41 2.4.19 : Tagged on March 21, 2016, not released.
42 2.4.18 : Tagged on December 8, 2015. Released on December 14, 2015.
43 2.4.17 : Tagged on October 9, 2015. Released October 13, 2015.
44 2.4.16 : Tagged on July 9, 2015. Released July 15, 2015
45 2.4.15 : Tagged on June 19, 2015. Not released.
46 2.4.14 : Tagged on June 11, 2015. Not released.
47 2.4.13 : Tagged on June 4, 2015. Not released.
48 2.4.12 : Tagged on January 22, 2015. Released Jan 29, 2015
49 2.4.11 : Tagged on January 15, 2015. Not released.
50 2.4.10 : Tagged on July 15, 2014. Released July 21, 2014
51 2.4.9 : Tagged on March 13, 2014. Released on March 17, 2014
52 2.4.8 : Tagged on March 11, 2014. Not released.
53 2.4.7 : Tagged on November 19, 2013. Released on Nov 25, 2013
54 2.4.6 : Tagged on July 15, 2013. Released July, 22, 2013
55 2.4.5 : Tagged on July 11, 2013, not released.
56 2.4.4 : Tagged on February 18, 2013. Released Feb 25, 2013
57 2.4.3 : Tagged on August 17, 2012. Released Aug 18, 2012
58 2.4.2 : Tagged on April 5, 2012. Released Apr 17, 2012.
59 2.4.1 : Tagged on February 13, 2012. Released Feb 21, 2012.
60 2.4.0 : Tagged on January 16, 2012, not released.
61 2.3.16 : Tagged on December 15, 2011.
62 2.3.15 : Tagged on November 8, 2011. Released Nov. 15, 2011.
63 2.3.14 : Tagged on August 1, 2011. Released Aug. 9, 2011.
64 2.3.13 : Tagged on June 28, 2011, not released.
65 2.3.12 : Tagged on May 11, 2011. Released May 23, 2011.
66 2.3.11 : Released as Beta on March 7, 2011.
67 2.3.10 : Tagged on December 13, 2010. Released Dec 21, 2010.
68 2.3.9 : Tagged on November 23, 2010, not released.
69 2.3.8 : Tagged on August 24, 2010.
70 2.3.7 : Tagged on August 19, 2010, not released.
71 2.3.6 : Released on June 21, 2010.
72 2.3.5 : Released on January 26, 2010.
73 2.3.4 : Released on December 8, 2009.
74 2.3.3 : Tagged on November 11, 2009, not released.
75 2.3.2 : Tagged on March 23, 2009, not released.
76 2.3.1 : Tagged on January 2, 2009, not released.
77 2.3.0 : Tagged on December 6, 2008, not released.
79 Contributors looking for a mission:
81 * Just do an egrep on "TODO" or "XXX" in the source.
83 * Review the bug database at: http://issues.apache.org/bugzilla/
85 * Review the "PatchAvailable" bugs in the bug database:
87 https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable
89 After testing, you can append a comment saying "Reviewed and tested".
91 * Open bugs in the bug database.
93 * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.
96 CURRENT RELEASE NOTES:
98 * Forward binary compatibility is expected of Apache 2.4.x releases, such
99 that no MMN major number changes will occur after 2.4.1. Such changes can
100 only be made in the trunk.
102 * All commits to branches/2.4.x must be reflected in SVN trunk,
103 as well, if they apply. Logical progression is commit to trunk
104 then merge into branches/2.4.x, as applicable.
106 * Current exceptions for RTC for this branch:
111 . non-Unix, single-platform code
113 RELEASE SHOWSTOPPERS:
115 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
116 [ start all new proposals below, under PATCHES PROPOSED. ]
118 *) mod_proxy_wstunnel fix PR 61142
119 2.4.x patch: svn merge -c 1801594 ^/httpd/httpd/trunk .
120 +1: jfclere, jim, covener
121 ylavic: CHANGES-log please?
124 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
125 [ New proposals should be added at the end of the list ]
127 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
128 allowing per backend TLS configuration.
129 trunk patch: http://svn.apache.org/r1740928
130 http://svn.apache.org/r1740960
131 http://svn.apache.org/r1740967
132 http://svn.apache.org/r1740987
133 http://svn.apache.org/r1740998
134 http://svn.apache.org/r1742697
135 http://svn.apache.org/r1756976
136 http://svn.apache.org/r1781313
137 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
139 mrumph: Since this has been sitting for awhile, there are several places
140 where this patch needs to be adjusted against recent changes to 2.4.x.
141 ylavic: With current 2.4.x (r1807662), there seems to be only a conflict with
142 MMN, which can probably be taken by the backporter. I don't see the
143 other places where it needs adjustments, Mike?
145 *) mod_remoteip: Add PROXY protocol support
146 trunk patch: http://svn.apache.org/r1776575
147 http://svn.apache.org/r1776578 (doc fix)
148 http://svn.apache.org/r1776627 (shortened name + doc fix)
149 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
150 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
151 http://svn.apache.org/r1778268 (fix compiler warning)
152 http://svn.apache.org/r1780725 (set buckets aside)
153 http://svn.apache.org/r1781030 (fix strict GCC warning)
154 http://svn.apache.org/r1781031 (reference the filter by handle)
155 http://svn.apache.org/r1781701 (rework optional processing case)
156 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
157 http://svn.apache.org/r1789800 (remove optional processing)
158 http://svn.apache.org/r1790169 (rename "exception" directive)
159 http://svn.apache.org/r1790457 (Update directive name in err message)
160 2.4 convenience patch (includes CHANGES):
161 http://home.apache.org/~jim/patches/RemoteIPProxyProtocol.2.4.x.patch
163 mrumph: I had a chance to review this proposal.
164 I committed some suggested changes to trunk in r1806985.
165 Also, the copyright in mod_remoteip.c is of some concern.
166 Perhaps the terms of the copyright should be included in that note.
167 And on a personal note, today is my last day with Oracle.
168 So it may well be my last day with Apache as well.
169 It has been great working with all of you.
171 * mod_journald: Add new module mod_journald to log error logs into journald.
172 trunk patch: http://svn.apache.org/r1610339
173 http://svn.apache.org/r1621806
174 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
176 jchampion: Looks like the headers require GCC extensions to compile, so
177 mod_journald can't be configured in maintainer mode (-std=c89).
178 Can anyone else reproduce, or is it just my distro?
180 *) Makefile: Use different variables to track normal modules and MPMs during
181 build. Only the enabled MPM is uncommented in the configuration
182 if multiple DSOs are built, and LoadModule for MPMs will now come
183 before LoadModule for the normal modules. Patch by rjung.
184 trunk patch: https://svn.apache.org/r1729235
185 https://svn.apache.org/r1730079
186 https://svn.apache.org/r1801665
187 2.4.x patch: svn merge -c1729235 -c1730079 -c1801665 ^/httpd/httpd/trunk .
190 *) mod_proxy: Loadfactor can now be a decimal number (eg: 1.25)
191 trunk patch: http://svn.apache.org/r1805188
192 http://svn.apache.org/r1805206 (partial)
193 2.4.x patch: http://home.apache.org/~jim/patches/httpd-2.4-loadfactor.patch
195 ylavic: Missing r1805190? Also, I'd use double/%lf instead of float/%f for
196 floating point arithmetic...
198 *) htdigest: prevent a buffer overflow when a string exceeds its maximum size
199 in a password file. PR: 61511
200 trunk patch: http://svn.apache.org/r1808008
201 http://svn.apache.org/r1808085
202 2.4.x patch: svn merge -c1808008 -c1808085 ^/httpd/httpd/trunk .
205 PATCHES/ISSUES THAT ARE BEING WORKED
206 [ New entries should be added at the START of the list ]
208 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
209 proxy_post_handshake hook fails.
210 Trunk patch: r1645529 (works)
211 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
213 ylavic: there may be missing bits, see thread for commit r1736510.
215 *) core: Drop an invalid Last-Modified header value coming
216 from a (F)CGI script instead of replacing it with Unix epoch.
217 Warn the users about Last-Modified header value replacements
218 and violations of the RFC.
219 trunk patch: http://svn.apache.org/r1748379
220 http://svn.apache.org/r1750747
221 http://svn.apache.org/r1750749
222 http://svn.apache.org/r1750953
223 http://svn.apache.org/r1751138
224 http://svn.apache.org/r1751139
225 http://svn.apache.org/r1751147
226 http://svn.apache.org/r1757818
227 2.4.x: trunk patches work, final view:
228 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
229 The problem has been discussed in dev@ extensively but we did not reach a common
230 agreement about how to proceed in the long term. While we wait, I would really like
231 to introduce useful logs for the users (the starting point of this change was a users@
232 email thread). If this is not the right way to go I will move the patch to other
233 sections of STATUS (stalled or being worked).
234 The code has been tested with a simple PHP script returning different Last-Modified
235 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
238 *) http: Don't remove the Content-Length of zero from a HEAD response if
239 it comes from an origin server, module or script. Allow the previous
240 behaviour (for legacy/buggy modules only, not origin) by also backporting
241 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
242 comes for free with the same commit).
243 trunk patch: http://svn.apache.org/r1554303
244 http://svn.apache.org/r1678215
245 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
247 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
248 ints added at the end of core_server_config, the proposed merge
249 does a minor bump only.
250 minfrin: Two new directives need to be documented.
252 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
253 fetching the request body, so to minimize the delay between it is supposed
254 to be alive and the first bytes sent: this is a best effort to prevent the
255 backend from closing because of idle or keepalive timeout in the meantime.
256 Also, handle a new "proxy-flushall" environment variable which allows to
257 flush any forwarded body data immediately. PR 56541+37920.
258 trunk patch: http://svn.apache.org/r1656259
259 http://svn.apache.org/r1656359 (CHANGES entry)
260 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
262 -0: jim: This seems to be a hit to normal performance, to handle an
263 error and/or non-normal condition. The pre-fetch is
264 expensive, and is always done, even before we know that
265 the backend is available to rec' it. I understand the
266 error described, but is the fix actually worth it (plus
267 it seems to allow for a DDoS vector).
268 ylavic: It seems to me that the problem is real since we reuse the
269 connection before prefetching 16K (either controlled by the
270 client, or by an input filter), we currently always prefetch
271 these bytes already. Regarding performance I don't see any
272 difference (more cycles) compared with the current code.
273 However I think I failed to rebuild the header_brigade when
274 the proxy loop is retried (ping), so I need to rework this.
275 Do you think we'd better remove the prefetch, or maybe just
276 make it nonblocking (by default)?
277 jim: Non-blocking seems the best way to handle...
279 * mod_dav: Allow other modules to become providers and add ACLs
280 to the DAV response. Requires a release of apr-util v1.6.
281 trunk patch: http://svn.apache.org/r1748322
282 2.4.x: trunk works modulo CHANGES/MMN
284 rpluem asks: Will this compile with apr-util < v1.6 and keep
285 mod_dav working (without the new features of the patch of course)?
286 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
287 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
288 minfrin: Yes, as you can see in the patch everything applies only
289 if APR_XML_X2T_PARSED is defined, and the patch was tested with
290 both apr-util v1.6 and apr-util v1.5.
291 -1: jorton, breaks binary backwards compat per dev@ discuss
292 msgid <20160902120654.GA12674@redhat.com>
293 (& also, making the structure change with apr-util version
294 means it breaks binary compat across an apr-util upgrade?)
296 * Support PCRE2 (10.x) in place of PCRE (8.x).
297 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
299 http://svn.apache.org/r1773454
300 http://svn.apache.org/r1773741
301 http://svn.apache.org/r1773742
302 http://svn.apache.org/r1773839
303 http://svn.apache.org/r1773870
304 http://svn.apache.org/r1773882
305 wrowe notes that the current code is too inefficient, owing to the fact
306 that the ovector is a required allocation and is no longer allocated on
307 the stack, by design. The correct fix is an apr userdata allocation on
308 the appropriate pool, which would be thread-safe, but the actual API of
309 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
310 the ap_regex_t, because a single regex may be used by many threads in
311 parallel and is not thread-safe beyond initialization.
312 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
313 this as a thread safe storage buffer for the majority of cases (<10 $args)
314 and we don't have a portable tls mechanism to do so.
317 PATCHES/ISSUES THAT ARE STALLED
319 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
320 backport keeps syslog logging as part of httpd core and only adds
321 API to allow other modules to be used for error logging.
322 trunk patch: http://svn.apache.org/r1525597
323 http://svn.apache.org/r1525664
324 http://svn.apache.org/r1525845
325 http://svn.apache.org/r1527003
326 http://svn.apache.org/r1527005
327 http://svn.apache.org/r1532344
328 http://svn.apache.org/r1539988
329 http://svn.apache.org/r1541029
330 http://svn.apache.org/r1543979
331 http://svn.apache.org/r1544156
332 http://svn.apache.org/r1626978
333 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
335 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
336 needs 2 args which is not valid in ErrorLog manual)
337 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
338 (sorry, haven't finished reviewing completely)
339 jim: What is the status of this??
341 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
342 and ProxyMatch section to distinguish between normal workers and workers
343 with regex substitutions in the name. Implement handling of such workers
344 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
345 matched and used for request. PR 43513.
346 trunk patch: http://svn.apache.org/r1609680
347 http://svn.apache.org/r1609688
348 http://svn.apache.org/r1641381
349 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
350 Also added missing r1609688 to the patchset.
351 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
353 -0: covener tried to review this one in Austin with Jeff. Does the added match function
354 really cover a very narrow set of parameters with the way it skips over backreferences?
355 Also, why a new API vs. just setting the field inline?
357 * mod_systemd: New module, for integration with systemd on Linux.
358 trunk patch: http://svn.apache.org/r1393976
359 http://svn.apache.org/r1393997
360 http://svn.apache.org/r1484554
361 http://svn.apache.org/r1528032
362 http://svn.apache.org/r1528034
363 http://svn.apache.org/r1614821
364 http://svn.apache.org/r1618579
365 http://svn.apache.org/r1618588
366 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
368 sf comments: The IdleShutdown logic seems broken. Consider a single
369 active connection that is stalled for 10 seconds. That
370 connection will be broken after GracefulShutdownTimeout.
371 A better logic would be to check if there is any open
372 connection that is not in keep-alive state.
374 * core: Add support for systemd socket activation.
375 trunk patch: http://svn.apache.org/r1511033
376 http://svn.apache.org/r1608686
377 http://svn.apache.org/r1608694
378 http://svn.apache.org/r1608703
379 http://svn.apache.org/r1608721
380 http://svn.apache.org/r1608744
381 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
384 * mod_proxy: Ensure network errors detected by the proxy are returned as
385 504 Gateway Timeout as opposed to 502 Bad Gateway
386 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
387 2.4.x patch: trunk patch works modulo CHANGES
389 -1: rpluem: This change is still disputed. See
390 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
392 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
393 compiled by the build compiler instead of the host compiler.
394 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
395 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
396 http://svn.apache.org/viewvc?view=revision&revision=1328390
397 http://svn.apache.org/viewvc?view=revision&revision=1328714
398 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
399 fuankg: on hold until we agree for a better and more simple solution ...
401 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
402 Moved fixing of shebang to separate target so that it is
403 no longer executed by default and all CGIs remain inactive.
404 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
405 http://svn.apache.org/viewvc?view=revision&revision=1421203
406 http://svn.apache.org/viewvc?view=revision&revision=1421591
407 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
410 This commit is essentially deciding that an httpd install on
411 Windows now has printenv/testcgi written in 2 more languages.
412 To the extent that the usefulness is that it shows how to make scripts
413 of these types executable by httpd, I believe that the documentation
414 is the proper place to solve that. To the extent that the usefullness
415 is to show how to implement a CGI in these particular languages, I believe
416 that the httpd distribution and documentation in general is not the
417 place for that. Historically these types of scripts have caused problems
418 for downstream vendorsas well as newbies (and sometimes the intersection
419 of those two groups) who don't understand that these are information leaks
420 once they are enabled, and the subtlety of the way they are disabled ("Apache
421 messed up the first line; let me fix that") contributes to that.
422 fuankg notes: I've just added a big warning to all CGI scripts which should now
423 make absolutely clear that these CGIs are for testing purpose only - so those
424 who enable those scripts with inserting the right shebang should be 100% aware
425 of any risks (this should cover your last point).
426 jim: trawick, does the above address your concerns?
427 trawick: to some extent (somebody reading the script gets an idea)
428 Why isn't the configuration requirement documented instead
429 of described indirectly in a sample?
430 Why are these new samples added to the install without three
431 votes? (I didn't veto it; put your name next to the two
432 existing ones and I'll be satisfied that enough people
433 considered this addition as an appropriate solution for a
434 real httpd usability problem.)
435 wrowe: I'd agree with trawick, and suggest that these scripts can begin
436 their life somewhere in the manual/ tree. This really seems like
437 the place where /usr/share/httpd/examples/ would be useful, but
438 there isn't an ordinary directory for that. Since we want none
439 of the scripts to function 'out of the box', what about a new
440 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
443 * core: block Define and Undefine in vhost and directory context. Because
444 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
445 trunk patch: http://svn.apache.org/r1656063
446 http://svn.apache.org/r1656122
447 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
448 +1: covener (I need to review the docs manually in this area)
449 -1: wrowe (blocking will break "working" .conf files on a subversion update
450 meant to pick up security fixes. "Alerting" I would agree to.)