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. ]
137 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
138 [ New proposals should be added at the end of the list ]
140 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
141 allowing per backend TLS configuration.
142 trunk patch: http://svn.apache.org/r1740928
143 http://svn.apache.org/r1740960
144 http://svn.apache.org/r1740967
145 http://svn.apache.org/r1740987
146 http://svn.apache.org/r1740998
147 http://svn.apache.org/r1742697
148 http://svn.apache.org/r1756976
149 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co.patch
152 *) event: close a race condition where we might re-enable listeners while they
153 are already or about to be closed.
154 trunk patch: http://svn.apache.org/r1774541
155 2.4.x patch: trunk works
158 *) mod_proxy_fcgi: Return HTTP 504 rather than 503 in case of proxy timeout.
159 trunk patch: http://svn.apache.org/r1775858
160 2.4 patch: trunk works (modulo CHANGES)
163 *) mod_remoteip: Add PROXY protocol support
164 trunk patch: http://svn.apache.org/r1776575
165 http://svn.apache.org/r1776578 (doc fix)
166 http://svn.apache.org/r1776627 (shortened name + doc fix)
167 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
168 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
169 2.4 patch (includes CHANGES):
170 http://people.apache.org/~druggeri/patches/RemoteIPProxyProtocol.2.4.x.patch
172 ±0: jorton, not reviewed but please include r1781030 too
174 *) mod_filter: AddOutputFilterByType should use underlying filters type, not just
175 AP_FTYPE_CONTENT_SET. PR58856
176 trunk patch: http://svn.apache.org/r1726705
177 2.4.x patch: trunk works
180 *) mod_watchdog: Use pconf as parent pool so mutexes get cleaned on restarts/reloads
181 and fix leaking sems (https://bugzilla.redhat.com/show_bug.cgi?id=1410883)
182 trunk patch: http://svn.apache.org/r1778319
183 http://svn.apache.org/r1778331
184 2.4.x patch: trunk works
187 *) mod_brotli: Backport of mod_brotli filter
188 trunk patch: http://svn.apache.org/r1761714
189 http://svn.apache.org/r1762512
190 http://svn.apache.org/r1762515
191 http://svn.apache.org/r1771791
192 http://svn.apache.org/r1779077
193 2.4.x patch: http://home.apache.org/~jim/patches/brotli-2.4.patch
196 *) mod_auth_digest: Use anonymous shm by default, fall back on name-based
197 trunk patch: http://svn.apache.org/r1684636
198 2.4.x patch: trunk works (needs CHANGES, ref PR 54622)
201 PATCHES/ISSUES THAT ARE BEING WORKED
202 [ New entried should be added at the START of the list ]
204 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
205 proxy_post_handshake hook fails.
206 Trunk patch: r1645529 (works)
207 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
209 ylavic: there may be missing bits, see thread for commit r1736510.
211 *) core: Drop an invalid Last-Modified header value coming
212 from a (F)CGI script instead of replacing it with Unix epoch.
213 Warn the users about Last-Modified header value replacements
214 and violations of the RFC.
215 trunk patch: http://svn.apache.org/r1748379
216 http://svn.apache.org/r1750747
217 http://svn.apache.org/r1750749
218 http://svn.apache.org/r1750953
219 http://svn.apache.org/r1751138
220 http://svn.apache.org/r1751139
221 http://svn.apache.org/r1751147
222 http://svn.apache.org/r1757818
223 2.4.x: trunk patches work, final view:
224 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
225 The problem has been discussed in dev@ extensively but we did not reach a common
226 agreement about how to proceed in the long term. While we wait, I would really like
227 to introduce useful logs for the users (the starting point of this change was a users@
228 email thread). If this is not the right way to go I will move the patch to other
229 sections of STATUS (stalled or being worked).
230 The code has been tested with a simple PHP script returning different Last-Modified
231 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
234 *) http: Don't remove the Content-Length of zero from a HEAD response if
235 it comes from an origin server, module or script. Allow the previous
236 behaviour (for legacy/buggy modules only, not origin) by also backporting
237 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
238 comes for free with the same commit).
239 trunk patch: http://svn.apache.org/r1554303
240 http://svn.apache.org/r1678215
241 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
243 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
244 ints added at the end of core_server_config, the proposed merge
245 does a minor bump only.
246 minfrin: Two new directives need to be documented.
248 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
249 fetching the request body, so to minimize the delay between it is supposed
250 to be alive and the first bytes sent: this is a best effort to prevent the
251 backend from closing because of idle or keepalive timeout in the meantime.
252 Also, handle a new "proxy-flushall" environment variable which allows to
253 flush any forwarded body data immediately. PR 56541+37920.
254 trunk patch: http://svn.apache.org/r1656259
255 http://svn.apache.org/r1656359 (CHANGES entry)
256 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
258 -0: jim: This seems to be a hit to normal performance, to handle an
259 error and/or non-normal condition. The pre-fetch is
260 expensive, and is always done, even before we know that
261 the backend is available to rec' it. I understand the
262 error described, but is the fix actually worth it (plus
263 it seems to allow for a DDoS vector).
264 ylavic: It seems to me that the problem is real since we reuse the
265 connection before prefetching 16K (either controlled by the
266 client, or by an input filter), we currently always prefetch
267 these bytes already. Regarding performance I don't see any
268 difference (more cycles) compared with the current code.
269 However I think I failed to rebuild the header_brigade when
270 the proxy loop is retried (ping), so I need to rework this.
271 Do you think we'd better remove the prefetch, or maybe just
272 make it nonblocking (by default)?
273 jim: Non-blocking seems the best way to handle...
275 * mod_dav: Allow other modules to become providers and add ACLs
276 to the DAV response. Requires a release of apr-util v1.6.
277 trunk patch: http://svn.apache.org/r1748322
278 2.4.x: trunk works modulo CHANGES/MMN
280 rpluem asks: Will this compile with apr-util < v1.6 and keep
281 mod_dav working (without the new features of the patch of course)?
282 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
283 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
284 minfrin: Yes, as you can see in the patch everything applies only
285 if APR_XML_X2T_PARSED is defined, and the patch was tested with
286 both apr-util v1.6 and apr-util v1.5.
287 -1: jorton, breaks binary backwards compat per dev@ discuss
288 msgid <20160902120654.GA12674@redhat.com>
289 (& also, making the structure change with apr-util version
290 means it breaks binary compat across an apr-util upgrade?)
292 * Support PCRE2 (10.x) in place of PCRE (8.x).
293 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
295 http://svn.apache.org/r1773454
296 http://svn.apache.org/r1773741
297 http://svn.apache.org/r1773742
298 http://svn.apache.org/r1773839
299 http://svn.apache.org/r1773870
300 http://svn.apache.org/r1773882
301 wrowe notes that the current code is too inefficient, owing to the fact
302 that the ovector is a required allocation and is no longer allocated on
303 the stack, by design. The correct fix is an apr userdata allocation on
304 the appropriate pool, which would be thread-safe, but the actual API of
305 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
306 the ap_regex_t, because a single regex may be used by many threads in
307 parallel and is not thread-safe beyond initialization.
308 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
309 this as a thread safe storage buffer for the majority of cases (<10 $args)
310 and we don't have a portable tls mechanism to do so.
313 PATCHES/ISSUES THAT ARE STALLED
315 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
316 backport keeps syslog logging as part of httpd core and only adds
317 API to allow other modules to be used for error logging.
318 trunk patch: http://svn.apache.org/r1525597
319 http://svn.apache.org/r1525664
320 http://svn.apache.org/r1525845
321 http://svn.apache.org/r1527003
322 http://svn.apache.org/r1527005
323 http://svn.apache.org/r1532344
324 http://svn.apache.org/r1539988
325 http://svn.apache.org/r1541029
326 http://svn.apache.org/r1543979
327 http://svn.apache.org/r1544156
328 http://svn.apache.org/r1626978
329 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
331 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
332 needs 2 args which is not valid in ErrorLog manual)
333 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
334 (sorry, haven't finished reviewing completely)
335 jim: What is the status of this??
337 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
338 and ProxyMatch section to distinguish between normal workers and workers
339 with regex substitutions in the name. Implement handling of such workers
340 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
341 matched and used for request. PR 43513.
342 trunk patch: http://svn.apache.org/r1609680
343 http://svn.apache.org/r1609688
344 http://svn.apache.org/r1641381
345 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
346 Also added missing r1609688 to the patchset.
347 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
349 -0: covener tried to review this one in Austin with Jeff. Does the added match function
350 really cover a very narrow set of parameters with the way it skips over backreferences?
351 Also, why a new API vs. just setting the field inline?
353 * mod_systemd: New module, for integration with systemd on Linux.
354 trunk patch: http://svn.apache.org/r1393976
355 http://svn.apache.org/r1393997
356 http://svn.apache.org/r1484554
357 http://svn.apache.org/r1528032
358 http://svn.apache.org/r1528034
359 http://svn.apache.org/r1614821
360 http://svn.apache.org/r1618579
361 http://svn.apache.org/r1618588
362 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
364 sf comments: The IdleShutdown logic seems broken. Consider a single
365 active connection that is stalled for 10 seconds. That
366 connection will be broken after GracefulShutdownTimeout.
367 A better logic would be to check if there is any open
368 connection that is not in keep-alive state.
370 * mod_journald: Add new module mod_journald to log error logs into journald.
371 This patch needs changes done in mod_systemd patch (already
373 trunk patch: http://svn.apache.org/r1610339
374 http://svn.apache.org/r1621806
375 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
377 rjung, minfrin: Not understanding "This patch needs changes done in
378 mod_systemd patch", am I right in understanding this patch is
380 jkaluza: No, that patch is not committed yet. It is in STALLED section.
381 The link for that patch is: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
383 * core: Add support for systemd socket activation.
384 trunk patch: http://svn.apache.org/r1511033
385 http://svn.apache.org/r1608686
386 http://svn.apache.org/r1608694
387 http://svn.apache.org/r1608703
388 http://svn.apache.org/r1608721
389 http://svn.apache.org/r1608744
390 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
393 * mod_proxy: Ensure network errors detected by the proxy are returned as
394 504 Gateway Timeout as opposed to 502 Bad Gateway
395 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
396 2.4.x patch: trunk patch works modulo CHANGES
398 -1: rpluem: This change is still disputed. See
399 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
401 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
402 compiled by the build compiler instead of the host compiler.
403 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
404 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
405 http://svn.apache.org/viewvc?view=revision&revision=1328390
406 http://svn.apache.org/viewvc?view=revision&revision=1328714
407 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
408 fuankg: on hold until we agree for a better and more simple solution ...
410 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
411 Moved fixing of shebang to separate target so that it is
412 no longer executed by default and all CGIs remain inactive.
413 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
414 http://svn.apache.org/viewvc?view=revision&revision=1421203
415 http://svn.apache.org/viewvc?view=revision&revision=1421591
416 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
419 This commit is essentially deciding that an httpd install on
420 Windows now has printenv/testcgi written in 2 more languages.
421 To the extent that the usefulness is that it shows how to make scripts
422 of these types executable by httpd, I believe that the documentation
423 is the proper place to solve that. To the extent that the usefullness
424 is to show how to implement a CGI in these particular languages, I believe
425 that the httpd distribution and documentation in general is not the
426 place for that. Historically these types of scripts have caused problems
427 for downstream vendorsas well as newbies (and sometimes the intersection
428 of those two groups) who don't understand that these are information leaks
429 once they are enabled, and the subtlety of the way they are disabled ("Apache
430 messed up the first line; let me fix that") contributes to that.
431 fuankg notes: I've just added a big warning to all CGI scripts which should now
432 make absolutely clear that these CGIs are for testing purpose only - so those
433 who enable those scripts with inserting the right shebang should be 100% aware
434 of any risks (this should cover your last point).
435 jim: trawick, does the above address your concerns?
436 trawick: to some extent (somebody reading the script gets an idea)
437 Why isn't the configuration requirement documented instead
438 of described indirectly in a sample?
439 Why are these new samples added to the install without three
440 votes? (I didn't veto it; put your name next to the two
441 existing ones and I'll be satisfied that enough people
442 considered this addition as an appropriate solution for a
443 real httpd usability problem.)
444 wrowe: I'd agree with trawick, and suggest that these scripts can begin
445 their life somewhere in the manual/ tree. This really seems like
446 the place where /usr/share/httpd/examples/ would be useful, but
447 there isn't an ordinary directory for that. Since we want none
448 of the scripts to function 'out of the box', what about a new
449 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
452 * core: block Define and Undefine in vhost and directory context. Because
453 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
454 trunk patch: http://svn.apache.org/r1656063
455 http://svn.apache.org/r1656122
456 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
457 +1: covener (I need to review the docs manually in this area)
458 -1: wrowe (blocking will break "working" .conf files on a subversion update
459 meant to pick up security fixes. "Alerting" I would agree to.)