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:
118 *) PR 60576: 2.4.21 broke PHP-FPM with the patch to strip the bogus "proxy://"
119 prefix from SCRIPT_FILENAME. We need to revert to the previous behavior
120 ASAP to avoid any further hurdles with FCGI implementations while we figure
123 *) PR 60071: Child httpd processes crash with Segmentation fault
124 trunk patch: http://svn.apache.org/r1779573
125 http://svn.apache.org/r1779574
126 http://svn.apache.org/r1779623
127 2.4.x patch: trunk works
130 *) PR60458: Rip out this regression or fix (TBD)
132 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
133 [ start all new proposals below, under PATCHES PROPOSED. ]
138 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
139 [ New proposals should be added at the end of the list ]
141 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
142 allowing per backend TLS configuration.
143 trunk patch: http://svn.apache.org/r1740928
144 http://svn.apache.org/r1740960
145 http://svn.apache.org/r1740967
146 http://svn.apache.org/r1740987
147 http://svn.apache.org/r1740998
148 http://svn.apache.org/r1742697
149 http://svn.apache.org/r1756976
150 http://svn.apache.org/r1781313
151 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
154 *) event: close a race condition where we might re-enable listeners while they
155 are already or about to be closed.
156 trunk patch: http://svn.apache.org/r1774541
157 2.4.x patch: trunk works
160 *) mod_proxy_fcgi: Return HTTP 504 rather than 503 in case of proxy timeout.
161 trunk patch: http://svn.apache.org/r1775858
162 2.4 patch: trunk works (modulo CHANGES)
165 *) mod_remoteip: Add PROXY protocol support
166 trunk patch: http://svn.apache.org/r1776575
167 http://svn.apache.org/r1776578 (doc fix)
168 http://svn.apache.org/r1776627 (shortened name + doc fix)
169 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
170 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
171 2.4 patch (includes CHANGES):
172 http://people.apache.org/~druggeri/patches/RemoteIPProxyProtocol.2.4.x.patch
174 ±0: jorton, not reviewed but please include r1781030 too
176 *) mod_brotli: Backport of mod_brotli filter
177 trunk patch: http://svn.apache.org/r1761714
178 http://svn.apache.org/r1762512
179 http://svn.apache.org/r1762515
180 http://svn.apache.org/r1771791
181 http://svn.apache.org/r1779077
182 2.4.x patch: http://home.apache.org/~jim/patches/brotli-2.4.patch
185 *) mod_auth_digest: Use anonymous shm by default, fall back on name-based
186 trunk patch: http://svn.apache.org/r1684636
187 2.4.x patch: trunk works (needs CHANGES, ref PR 54622)
190 *) mod_ssl: work around leaks on (graceful) restart.
191 trunk patch: http://svn.apache.org/r1781187
192 http://svn.apache.org/r1781190
193 http://svn.apache.org/r1781312
194 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-mod_ssl-restart_leaks-v2.patch
197 *) mod_proxy_hcheck: Ensure thread-safety when concurrent healthchecks are
198 in use (ProxyHCTPsize > 0). PR 60071.
199 trunk patch: http://svn.apache.org/r1779573
200 2.4.x patch: trunk works (modulo CHANGES)
203 *) mod_proxy_hcheck: Don't validate timed out responses.
204 trunk patch: http://svn.apache.org/r1779574
205 http://svn.apache.org/r1779623
206 2.4.x patch: trunk works *after r1779573 above* (modulo CHANGES)
210 PATCHES/ISSUES THAT ARE BEING WORKED
211 [ New entried should be added at the START of the list ]
213 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
214 proxy_post_handshake hook fails.
215 Trunk patch: r1645529 (works)
216 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
218 ylavic: there may be missing bits, see thread for commit r1736510.
220 *) core: Drop an invalid Last-Modified header value coming
221 from a (F)CGI script instead of replacing it with Unix epoch.
222 Warn the users about Last-Modified header value replacements
223 and violations of the RFC.
224 trunk patch: http://svn.apache.org/r1748379
225 http://svn.apache.org/r1750747
226 http://svn.apache.org/r1750749
227 http://svn.apache.org/r1750953
228 http://svn.apache.org/r1751138
229 http://svn.apache.org/r1751139
230 http://svn.apache.org/r1751147
231 http://svn.apache.org/r1757818
232 2.4.x: trunk patches work, final view:
233 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
234 The problem has been discussed in dev@ extensively but we did not reach a common
235 agreement about how to proceed in the long term. While we wait, I would really like
236 to introduce useful logs for the users (the starting point of this change was a users@
237 email thread). If this is not the right way to go I will move the patch to other
238 sections of STATUS (stalled or being worked).
239 The code has been tested with a simple PHP script returning different Last-Modified
240 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
243 *) http: Don't remove the Content-Length of zero from a HEAD response if
244 it comes from an origin server, module or script. Allow the previous
245 behaviour (for legacy/buggy modules only, not origin) by also backporting
246 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
247 comes for free with the same commit).
248 trunk patch: http://svn.apache.org/r1554303
249 http://svn.apache.org/r1678215
250 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
252 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
253 ints added at the end of core_server_config, the proposed merge
254 does a minor bump only.
255 minfrin: Two new directives need to be documented.
257 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
258 fetching the request body, so to minimize the delay between it is supposed
259 to be alive and the first bytes sent: this is a best effort to prevent the
260 backend from closing because of idle or keepalive timeout in the meantime.
261 Also, handle a new "proxy-flushall" environment variable which allows to
262 flush any forwarded body data immediately. PR 56541+37920.
263 trunk patch: http://svn.apache.org/r1656259
264 http://svn.apache.org/r1656359 (CHANGES entry)
265 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
267 -0: jim: This seems to be a hit to normal performance, to handle an
268 error and/or non-normal condition. The pre-fetch is
269 expensive, and is always done, even before we know that
270 the backend is available to rec' it. I understand the
271 error described, but is the fix actually worth it (plus
272 it seems to allow for a DDoS vector).
273 ylavic: It seems to me that the problem is real since we reuse the
274 connection before prefetching 16K (either controlled by the
275 client, or by an input filter), we currently always prefetch
276 these bytes already. Regarding performance I don't see any
277 difference (more cycles) compared with the current code.
278 However I think I failed to rebuild the header_brigade when
279 the proxy loop is retried (ping), so I need to rework this.
280 Do you think we'd better remove the prefetch, or maybe just
281 make it nonblocking (by default)?
282 jim: Non-blocking seems the best way to handle...
284 * mod_dav: Allow other modules to become providers and add ACLs
285 to the DAV response. Requires a release of apr-util v1.6.
286 trunk patch: http://svn.apache.org/r1748322
287 2.4.x: trunk works modulo CHANGES/MMN
289 rpluem asks: Will this compile with apr-util < v1.6 and keep
290 mod_dav working (without the new features of the patch of course)?
291 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
292 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
293 minfrin: Yes, as you can see in the patch everything applies only
294 if APR_XML_X2T_PARSED is defined, and the patch was tested with
295 both apr-util v1.6 and apr-util v1.5.
296 -1: jorton, breaks binary backwards compat per dev@ discuss
297 msgid <20160902120654.GA12674@redhat.com>
298 (& also, making the structure change with apr-util version
299 means it breaks binary compat across an apr-util upgrade?)
301 * Support PCRE2 (10.x) in place of PCRE (8.x).
302 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
304 http://svn.apache.org/r1773454
305 http://svn.apache.org/r1773741
306 http://svn.apache.org/r1773742
307 http://svn.apache.org/r1773839
308 http://svn.apache.org/r1773870
309 http://svn.apache.org/r1773882
310 wrowe notes that the current code is too inefficient, owing to the fact
311 that the ovector is a required allocation and is no longer allocated on
312 the stack, by design. The correct fix is an apr userdata allocation on
313 the appropriate pool, which would be thread-safe, but the actual API of
314 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
315 the ap_regex_t, because a single regex may be used by many threads in
316 parallel and is not thread-safe beyond initialization.
317 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
318 this as a thread safe storage buffer for the majority of cases (<10 $args)
319 and we don't have a portable tls mechanism to do so.
322 PATCHES/ISSUES THAT ARE STALLED
324 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
325 backport keeps syslog logging as part of httpd core and only adds
326 API to allow other modules to be used for error logging.
327 trunk patch: http://svn.apache.org/r1525597
328 http://svn.apache.org/r1525664
329 http://svn.apache.org/r1525845
330 http://svn.apache.org/r1527003
331 http://svn.apache.org/r1527005
332 http://svn.apache.org/r1532344
333 http://svn.apache.org/r1539988
334 http://svn.apache.org/r1541029
335 http://svn.apache.org/r1543979
336 http://svn.apache.org/r1544156
337 http://svn.apache.org/r1626978
338 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
340 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
341 needs 2 args which is not valid in ErrorLog manual)
342 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
343 (sorry, haven't finished reviewing completely)
344 jim: What is the status of this??
346 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
347 and ProxyMatch section to distinguish between normal workers and workers
348 with regex substitutions in the name. Implement handling of such workers
349 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
350 matched and used for request. PR 43513.
351 trunk patch: http://svn.apache.org/r1609680
352 http://svn.apache.org/r1609688
353 http://svn.apache.org/r1641381
354 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
355 Also added missing r1609688 to the patchset.
356 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
358 -0: covener tried to review this one in Austin with Jeff. Does the added match function
359 really cover a very narrow set of parameters with the way it skips over backreferences?
360 Also, why a new API vs. just setting the field inline?
362 * mod_systemd: New module, for integration with systemd on Linux.
363 trunk patch: http://svn.apache.org/r1393976
364 http://svn.apache.org/r1393997
365 http://svn.apache.org/r1484554
366 http://svn.apache.org/r1528032
367 http://svn.apache.org/r1528034
368 http://svn.apache.org/r1614821
369 http://svn.apache.org/r1618579
370 http://svn.apache.org/r1618588
371 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
373 sf comments: The IdleShutdown logic seems broken. Consider a single
374 active connection that is stalled for 10 seconds. That
375 connection will be broken after GracefulShutdownTimeout.
376 A better logic would be to check if there is any open
377 connection that is not in keep-alive state.
379 * mod_journald: Add new module mod_journald to log error logs into journald.
380 This patch needs changes done in mod_systemd patch (already
382 trunk patch: http://svn.apache.org/r1610339
383 http://svn.apache.org/r1621806
384 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
386 rjung, minfrin: Not understanding "This patch needs changes done in
387 mod_systemd patch", am I right in understanding this patch is
389 jkaluza: No, that patch is not committed yet. It is in STALLED section.
390 The link for that patch is: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
392 * core: Add support for systemd socket activation.
393 trunk patch: http://svn.apache.org/r1511033
394 http://svn.apache.org/r1608686
395 http://svn.apache.org/r1608694
396 http://svn.apache.org/r1608703
397 http://svn.apache.org/r1608721
398 http://svn.apache.org/r1608744
399 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
402 * mod_proxy: Ensure network errors detected by the proxy are returned as
403 504 Gateway Timeout as opposed to 502 Bad Gateway
404 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
405 2.4.x patch: trunk patch works modulo CHANGES
407 -1: rpluem: This change is still disputed. See
408 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
410 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
411 compiled by the build compiler instead of the host compiler.
412 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
413 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
414 http://svn.apache.org/viewvc?view=revision&revision=1328390
415 http://svn.apache.org/viewvc?view=revision&revision=1328714
416 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
417 fuankg: on hold until we agree for a better and more simple solution ...
419 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
420 Moved fixing of shebang to separate target so that it is
421 no longer executed by default and all CGIs remain inactive.
422 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
423 http://svn.apache.org/viewvc?view=revision&revision=1421203
424 http://svn.apache.org/viewvc?view=revision&revision=1421591
425 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
428 This commit is essentially deciding that an httpd install on
429 Windows now has printenv/testcgi written in 2 more languages.
430 To the extent that the usefulness is that it shows how to make scripts
431 of these types executable by httpd, I believe that the documentation
432 is the proper place to solve that. To the extent that the usefullness
433 is to show how to implement a CGI in these particular languages, I believe
434 that the httpd distribution and documentation in general is not the
435 place for that. Historically these types of scripts have caused problems
436 for downstream vendorsas well as newbies (and sometimes the intersection
437 of those two groups) who don't understand that these are information leaks
438 once they are enabled, and the subtlety of the way they are disabled ("Apache
439 messed up the first line; let me fix that") contributes to that.
440 fuankg notes: I've just added a big warning to all CGI scripts which should now
441 make absolutely clear that these CGIs are for testing purpose only - so those
442 who enable those scripts with inserting the right shebang should be 100% aware
443 of any risks (this should cover your last point).
444 jim: trawick, does the above address your concerns?
445 trawick: to some extent (somebody reading the script gets an idea)
446 Why isn't the configuration requirement documented instead
447 of described indirectly in a sample?
448 Why are these new samples added to the install without three
449 votes? (I didn't veto it; put your name next to the two
450 existing ones and I'll be satisfied that enough people
451 considered this addition as an appropriate solution for a
452 real httpd usability problem.)
453 wrowe: I'd agree with trawick, and suggest that these scripts can begin
454 their life somewhere in the manual/ tree. This really seems like
455 the place where /usr/share/httpd/examples/ would be useful, but
456 there isn't an ordinary directory for that. Since we want none
457 of the scripts to function 'out of the box', what about a new
458 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
461 * core: block Define and Undefine in vhost and directory context. Because
462 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
463 trunk patch: http://svn.apache.org/r1656063
464 http://svn.apache.org/r1656122
465 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
466 +1: covener (I need to review the docs manually in this area)
467 -1: wrowe (blocking will break "working" .conf files on a subversion update
468 meant to pick up security fixes. "Alerting" I would agree to.)