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. ]
125 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
126 [ New proposals should be added at the end of the list ]
128 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
129 allowing per backend TLS configuration.
130 trunk patch: http://svn.apache.org/r1740928
131 http://svn.apache.org/r1740960
132 http://svn.apache.org/r1740967
133 http://svn.apache.org/r1740987
134 http://svn.apache.org/r1740998
135 http://svn.apache.org/r1742697
136 http://svn.apache.org/r1756976
137 http://svn.apache.org/r1781313
138 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
141 *) mod_remoteip: Add PROXY protocol support
142 trunk patch: http://svn.apache.org/r1776575
143 http://svn.apache.org/r1776578 (doc fix)
144 http://svn.apache.org/r1776627 (shortened name + doc fix)
145 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
146 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
147 http://svn.apache.org/r1778268 (fix compiler warning)
148 http://svn.apache.org/r1780725 (set buckets aside)
149 http://svn.apache.org/r1781030 (fix strict GCC warning)
150 http://svn.apache.org/r1781031 (reference the filter by handle)
151 http://svn.apache.org/r1781701 (rework optional processing case)
152 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
153 http://svn.apache.org/r1789800 (remove optional processing)
154 http://svn.apache.org/r1790169 (rename "exception" directive)
155 http://svn.apache.org/r1790457 (Update directive name in err message)
156 2.4 convenience patch (includes CHANGES):
157 http://people.apache.org/~druggeri/patches/RemoteIPProxyProtocol.2.4.x.patch
160 * mod_journald: Add new module mod_journald to log error logs into journald.
161 trunk patch: http://svn.apache.org/r1610339
162 http://svn.apache.org/r1621806
163 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
165 jchampion: Looks like the headers require GCC extensions to compile, so
166 mod_journald can't be configured in maintainer mode (-std=c89).
167 Can anyone else reproduce, or is it just my distro?
169 *) core: Disallow multiple Listen on the same IP:port when listener buckets
170 are configured (ListenCoresBucketsRatio > 0), consistently with the single
171 bucket case (default), thus avoiding the leak of the corresponding socket
172 descriptors on graceful restart.
173 trunk patch: http://svn.apache.org/r1789220
174 http://svn.apache.org/r1792675
175 2.4.x patch: trunk works (modulo CHANGES)
178 *) mod_rewrite: When a substitution is a fully qualified URL, and the
179 scheme/host/port matches the current virtual host, stop interpreting the
180 path component as a local path just because the first component of the
181 path exists in the filesystem. Adds RewriteOption "LegacyPrefixDocRoot"
182 to revert to previous behavior. PR60009.
184 trunk patch: http://svn.apache.org/r1776463
185 2.4.x patch: svn merge -c 1776463 1776708 ^/httpd/httpd/trunk .
188 *) mod_rewrite: allow users to workaround the over-agressive backreference
189 escaping by selecting the characters to escape
190 mod_rewrite: add BNP flag (backrefnoplus)
191 trunk patch: http://svn.apache.org/r1584417
192 http://svn.apache.org/r1585157
193 2.4.x patch: http://home.apache.org/~jailletc36/BNP.diff
194 (mod_rewrite.xml from r1584417 has already been eroneously merged
195 with r1728060 + tweak taken from r1701545 partly backported in r1703403.
196 I have also added an entry for r1584417)
197 +1: jailletc36, covener
199 *) mod_env: When processing a 'SetEnv' directive, warn if the environment
200 variable name includes a '='. It is likely a configuration error.
202 trunk patch: http://svn.apache.org/r1795635
203 2.4.x patch: svn merge -c 1795635 ^/httpd/httpd/trunk . (modulo CHANGES)
204 +1: jailletc36, covener
206 *) mod_ssl: Consistently pass the expected bio_filter_in_ctx_t
207 to ssl_io_filter_error(). [Yann Ylavic]
208 trunk patch: http://svn.apache.org/r1796343
209 2.4.x patch: svn merge -c 1796343 ^/httpd/httpd/trunk . (modulo CHANGES)
212 *) core: Deprecate ap_get_basic_auth_pw() and add
213 ap_get_basic_auth_components().
214 trunk patch: http://svn.apache.org/r1796348
215 2.4.x patch: http://people.apache.org/~covener/patches/httpd-2.4.x-ap_get_basic_auth_pw.diff + CHANGES
218 PATCHES/ISSUES THAT ARE BEING WORKED
219 [ New entried should be added at the START of the list ]
221 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
222 proxy_post_handshake hook fails.
223 Trunk patch: r1645529 (works)
224 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
226 ylavic: there may be missing bits, see thread for commit r1736510.
228 *) core: Drop an invalid Last-Modified header value coming
229 from a (F)CGI script instead of replacing it with Unix epoch.
230 Warn the users about Last-Modified header value replacements
231 and violations of the RFC.
232 trunk patch: http://svn.apache.org/r1748379
233 http://svn.apache.org/r1750747
234 http://svn.apache.org/r1750749
235 http://svn.apache.org/r1750953
236 http://svn.apache.org/r1751138
237 http://svn.apache.org/r1751139
238 http://svn.apache.org/r1751147
239 http://svn.apache.org/r1757818
240 2.4.x: trunk patches work, final view:
241 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
242 The problem has been discussed in dev@ extensively but we did not reach a common
243 agreement about how to proceed in the long term. While we wait, I would really like
244 to introduce useful logs for the users (the starting point of this change was a users@
245 email thread). If this is not the right way to go I will move the patch to other
246 sections of STATUS (stalled or being worked).
247 The code has been tested with a simple PHP script returning different Last-Modified
248 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
251 *) http: Don't remove the Content-Length of zero from a HEAD response if
252 it comes from an origin server, module or script. Allow the previous
253 behaviour (for legacy/buggy modules only, not origin) by also backporting
254 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
255 comes for free with the same commit).
256 trunk patch: http://svn.apache.org/r1554303
257 http://svn.apache.org/r1678215
258 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
260 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
261 ints added at the end of core_server_config, the proposed merge
262 does a minor bump only.
263 minfrin: Two new directives need to be documented.
265 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
266 fetching the request body, so to minimize the delay between it is supposed
267 to be alive and the first bytes sent: this is a best effort to prevent the
268 backend from closing because of idle or keepalive timeout in the meantime.
269 Also, handle a new "proxy-flushall" environment variable which allows to
270 flush any forwarded body data immediately. PR 56541+37920.
271 trunk patch: http://svn.apache.org/r1656259
272 http://svn.apache.org/r1656359 (CHANGES entry)
273 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
275 -0: jim: This seems to be a hit to normal performance, to handle an
276 error and/or non-normal condition. The pre-fetch is
277 expensive, and is always done, even before we know that
278 the backend is available to rec' it. I understand the
279 error described, but is the fix actually worth it (plus
280 it seems to allow for a DDoS vector).
281 ylavic: It seems to me that the problem is real since we reuse the
282 connection before prefetching 16K (either controlled by the
283 client, or by an input filter), we currently always prefetch
284 these bytes already. Regarding performance I don't see any
285 difference (more cycles) compared with the current code.
286 However I think I failed to rebuild the header_brigade when
287 the proxy loop is retried (ping), so I need to rework this.
288 Do you think we'd better remove the prefetch, or maybe just
289 make it nonblocking (by default)?
290 jim: Non-blocking seems the best way to handle...
292 * mod_dav: Allow other modules to become providers and add ACLs
293 to the DAV response. Requires a release of apr-util v1.6.
294 trunk patch: http://svn.apache.org/r1748322
295 2.4.x: trunk works modulo CHANGES/MMN
297 rpluem asks: Will this compile with apr-util < v1.6 and keep
298 mod_dav working (without the new features of the patch of course)?
299 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
300 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
301 minfrin: Yes, as you can see in the patch everything applies only
302 if APR_XML_X2T_PARSED is defined, and the patch was tested with
303 both apr-util v1.6 and apr-util v1.5.
304 -1: jorton, breaks binary backwards compat per dev@ discuss
305 msgid <20160902120654.GA12674@redhat.com>
306 (& also, making the structure change with apr-util version
307 means it breaks binary compat across an apr-util upgrade?)
309 * Support PCRE2 (10.x) in place of PCRE (8.x).
310 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
312 http://svn.apache.org/r1773454
313 http://svn.apache.org/r1773741
314 http://svn.apache.org/r1773742
315 http://svn.apache.org/r1773839
316 http://svn.apache.org/r1773870
317 http://svn.apache.org/r1773882
318 wrowe notes that the current code is too inefficient, owing to the fact
319 that the ovector is a required allocation and is no longer allocated on
320 the stack, by design. The correct fix is an apr userdata allocation on
321 the appropriate pool, which would be thread-safe, but the actual API of
322 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
323 the ap_regex_t, because a single regex may be used by many threads in
324 parallel and is not thread-safe beyond initialization.
325 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
326 this as a thread safe storage buffer for the majority of cases (<10 $args)
327 and we don't have a portable tls mechanism to do so.
330 PATCHES/ISSUES THAT ARE STALLED
332 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
333 backport keeps syslog logging as part of httpd core and only adds
334 API to allow other modules to be used for error logging.
335 trunk patch: http://svn.apache.org/r1525597
336 http://svn.apache.org/r1525664
337 http://svn.apache.org/r1525845
338 http://svn.apache.org/r1527003
339 http://svn.apache.org/r1527005
340 http://svn.apache.org/r1532344
341 http://svn.apache.org/r1539988
342 http://svn.apache.org/r1541029
343 http://svn.apache.org/r1543979
344 http://svn.apache.org/r1544156
345 http://svn.apache.org/r1626978
346 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
348 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
349 needs 2 args which is not valid in ErrorLog manual)
350 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
351 (sorry, haven't finished reviewing completely)
352 jim: What is the status of this??
354 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
355 and ProxyMatch section to distinguish between normal workers and workers
356 with regex substitutions in the name. Implement handling of such workers
357 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
358 matched and used for request. PR 43513.
359 trunk patch: http://svn.apache.org/r1609680
360 http://svn.apache.org/r1609688
361 http://svn.apache.org/r1641381
362 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
363 Also added missing r1609688 to the patchset.
364 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
366 -0: covener tried to review this one in Austin with Jeff. Does the added match function
367 really cover a very narrow set of parameters with the way it skips over backreferences?
368 Also, why a new API vs. just setting the field inline?
370 * mod_systemd: New module, for integration with systemd on Linux.
371 trunk patch: http://svn.apache.org/r1393976
372 http://svn.apache.org/r1393997
373 http://svn.apache.org/r1484554
374 http://svn.apache.org/r1528032
375 http://svn.apache.org/r1528034
376 http://svn.apache.org/r1614821
377 http://svn.apache.org/r1618579
378 http://svn.apache.org/r1618588
379 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
381 sf comments: The IdleShutdown logic seems broken. Consider a single
382 active connection that is stalled for 10 seconds. That
383 connection will be broken after GracefulShutdownTimeout.
384 A better logic would be to check if there is any open
385 connection that is not in keep-alive state.
387 * core: Add support for systemd socket activation.
388 trunk patch: http://svn.apache.org/r1511033
389 http://svn.apache.org/r1608686
390 http://svn.apache.org/r1608694
391 http://svn.apache.org/r1608703
392 http://svn.apache.org/r1608721
393 http://svn.apache.org/r1608744
394 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
397 * mod_proxy: Ensure network errors detected by the proxy are returned as
398 504 Gateway Timeout as opposed to 502 Bad Gateway
399 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
400 2.4.x patch: trunk patch works modulo CHANGES
402 -1: rpluem: This change is still disputed. See
403 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
405 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
406 compiled by the build compiler instead of the host compiler.
407 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
408 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
409 http://svn.apache.org/viewvc?view=revision&revision=1328390
410 http://svn.apache.org/viewvc?view=revision&revision=1328714
411 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
412 fuankg: on hold until we agree for a better and more simple solution ...
414 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
415 Moved fixing of shebang to separate target so that it is
416 no longer executed by default and all CGIs remain inactive.
417 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
418 http://svn.apache.org/viewvc?view=revision&revision=1421203
419 http://svn.apache.org/viewvc?view=revision&revision=1421591
420 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
423 This commit is essentially deciding that an httpd install on
424 Windows now has printenv/testcgi written in 2 more languages.
425 To the extent that the usefulness is that it shows how to make scripts
426 of these types executable by httpd, I believe that the documentation
427 is the proper place to solve that. To the extent that the usefullness
428 is to show how to implement a CGI in these particular languages, I believe
429 that the httpd distribution and documentation in general is not the
430 place for that. Historically these types of scripts have caused problems
431 for downstream vendorsas well as newbies (and sometimes the intersection
432 of those two groups) who don't understand that these are information leaks
433 once they are enabled, and the subtlety of the way they are disabled ("Apache
434 messed up the first line; let me fix that") contributes to that.
435 fuankg notes: I've just added a big warning to all CGI scripts which should now
436 make absolutely clear that these CGIs are for testing purpose only - so those
437 who enable those scripts with inserting the right shebang should be 100% aware
438 of any risks (this should cover your last point).
439 jim: trawick, does the above address your concerns?
440 trawick: to some extent (somebody reading the script gets an idea)
441 Why isn't the configuration requirement documented instead
442 of described indirectly in a sample?
443 Why are these new samples added to the install without three
444 votes? (I didn't veto it; put your name next to the two
445 existing ones and I'll be satisfied that enough people
446 considered this addition as an appropriate solution for a
447 real httpd usability problem.)
448 wrowe: I'd agree with trawick, and suggest that these scripts can begin
449 their life somewhere in the manual/ tree. This really seems like
450 the place where /usr/share/httpd/examples/ would be useful, but
451 there isn't an ordinary directory for that. Since we want none
452 of the scripts to function 'out of the box', what about a new
453 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
456 * core: block Define and Undefine in vhost and directory context. Because
457 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
458 trunk patch: http://svn.apache.org/r1656063
459 http://svn.apache.org/r1656122
460 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
461 +1: covener (I need to review the docs manually in this area)
462 -1: wrowe (blocking will break "working" .conf files on a subversion update
463 meant to pick up security fixes. "Alerting" I would agree to.)