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 2.4.17 : In development.
38 2.4.16 : Tagged on July 9, 2015. Released July 15, 2015
39 2.4.15 : Tagged on June 19, 2015. Not released.
40 2.4.14 : Tagged on June 11, 2015. Not released.
41 2.4.13 : Tagged on June 4, 2015. Not released.
42 2.4.12 : Tagged on January 22, 2015. Released Jan 29, 2015
43 2.4.11 : Tagged on January 15, 2015. Not released.
44 2.4.10 : Tagged on July 15, 2014. Released July 21, 2014
45 2.4.9 : Tagged on March 13, 2014. Released on March 17, 2014
46 2.4.8 : Tagged on March 11, 2014. Not released.
47 2.4.7 : Tagged on November 19, 2013. Released on Nov 25, 2013
48 2.4.6 : Tagged on July 15, 2013. Released July, 22, 2013
49 2.4.5 : Tagged on July 11, 2013, not released.
50 2.4.4 : Tagged on February 18, 2013. Released Feb 25, 2013
51 2.4.3 : Tagged on August 17, 2012. Released Aug 18, 2012
52 2.4.2 : Tagged on April 5, 2012. Released Apr 17, 2012.
53 2.4.1 : Tagged on February 13, 2012. Released Feb 21, 2012.
54 2.4.0 : Tagged on January 16, 2012, not released.
55 2.3.16 : Tagged on December 15, 2011.
56 2.3.15 : Tagged on November 8, 2011. Released Nov. 15, 2011.
57 2.3.14 : Tagged on August 1, 2011. Released Aug. 9, 2011.
58 2.3.13 : Tagged on June 28, 2011, not released.
59 2.3.12 : Tagged on May 11, 2011. Released May 23, 2011.
60 2.3.11 : Released as Beta on March 7, 2011.
61 2.3.10 : Tagged on December 13, 2010. Released Dec 21, 2010.
62 2.3.9 : Tagged on November 23, 2010, not released.
63 2.3.8 : Tagged on August 24, 2010.
64 2.3.7 : Tagged on August 19, 2010, not released.
65 2.3.6 : Released on June 21, 2010.
66 2.3.5 : Released on January 26, 2010.
67 2.3.4 : Released on December 8, 2009.
68 2.3.3 : Tagged on November 11, 2009, not released.
69 2.3.2 : Tagged on March 23, 2009, not released.
70 2.3.1 : Tagged on January 2, 2009, not released.
71 2.3.0 : Tagged on December 6, 2008, not released.
73 Contributors looking for a mission:
75 * Just do an egrep on "TODO" or "XXX" in the source.
77 * Review the bug database at: http://issues.apache.org/bugzilla/
79 * Review the "PatchAvailable" bugs in the bug database:
81 https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable
83 After testing, you can append a comment saying "Reviewed and tested".
85 * Open bugs in the bug database.
87 * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.
90 CURRENT RELEASE NOTES:
92 * Forward binary compatibility is expected of Apache 2.4.x releases, such
93 that no MMN major number changes will occur after 2.4.1. Such changes can
94 only be made in the trunk.
96 * All commits to branches/2.4.x must be reflected in SVN trunk,
97 as well, if they apply. Logical progression is commit to trunk
98 then merge into branches/2.4.x, as applicable.
100 * Current exceptions for RTC for this branch:
104 . non-Unix, single-platform code
106 RELEASE SHOWSTOPPERS:
109 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
110 [ start all new proposals below, under PATCHES PROPOSED. ]
114 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
115 [ New proposals should be added at the end of the list ]
117 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
118 and ProxyMatch section to distinguish between normal workers and workers
119 with regex substitutions in the name. Implement handling of such workers
120 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
121 matched and used for request. PR 43513.
122 trunk patch: http://svn.apache.org/r1609680
123 http://svn.apache.org/r1609688
124 http://svn.apache.org/r1641381
125 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
126 Also added missing r1609688 to the patchset.
127 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
129 -0: covener tried to review this one in Austin with Jeff. Does the added match function
130 really cover a very narrow set of parameters with the way it skips over backreferences?
131 Also, why a new API vs. just setting the field inline?
133 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
134 backport keeps syslog logging as part of httpd core and only adds
135 API to allow other modules to be used for error logging.
136 trunk patch: http://svn.apache.org/r1525597
137 http://svn.apache.org/r1525664
138 http://svn.apache.org/r1525845
139 http://svn.apache.org/r1527003
140 http://svn.apache.org/r1527005
141 http://svn.apache.org/r1532344
142 http://svn.apache.org/r1539988
143 http://svn.apache.org/r1541029
144 http://svn.apache.org/r1543979
145 http://svn.apache.org/r1544156
146 http://svn.apache.org/r1626978
147 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
149 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
150 needs 2 args which is not valid in ErrorLog manual)
151 trawick: nit: fix "writing" in "/* NULL if we are writting to syslog */"
152 (sorry, haven't finished reviewing completely)
154 * mod_journald: Add new module mod_journald to log error logs into journald.
155 This patch needs changes done in mod_systemd patch (already
157 trunk patch: http://svn.apache.org/r1610339
158 http://svn.apache.org/r1621806
159 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
162 * MPMs: Support SO_REUSEPORT to create multiple duplicated listener
163 records for scalability (full log in 2.4.x patch).
164 trunk patch: http://svn.apache.org/r1599531
165 http://svn.apache.org/r1599593
166 http://svn.apache.org/r1599601
167 http://svn.apache.org/r1599603
168 http://svn.apache.org/r1601558
169 http://svn.apache.org/r1629909
170 http://svn.apache.org/r1629918
171 http://svn.apache.org/r1629990
172 http://svn.apache.org/r1635521
173 http://svn.apache.org/r1635859
174 http://svn.apache.org/r1640145
175 http://svn.apache.org/r1640161
176 http://svn.apache.org/r1640184
177 http://svn.apache.org/r1640763
178 http://svn.apache.org/r1643179
179 http://svn.apache.org/r1656368
180 http://svn.apache.org/r1679714
181 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_listeners_buckets-v3.patch
184 *) http: Don't remove the Content-Length of zero from a HEAD response if
185 it comes from an origin server, module or script. Allow the previous
186 behaviour (for legacy/buggy modules only, not origin) by also backporting
187 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
188 comes for free with the same commit).
189 trunk patch: http://svn.apache.org/r1554303
190 http://svn.apache.org/r1678215
191 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
193 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
194 ints added at the end of core_server_config, the proposed merge
195 does a minor bump only.
197 *) mod_substitute: Configure patterns merge order. PR 57641
198 trunk patch: http://svn.apache.org/r1684900
199 http://svn.apache.org/r1687539
200 http://svn.apache.org/r1687680
201 http://svn.apache.org/r1688331
202 http://svn.apache.org/r1688339
203 http://svn.apache.org/r1688340
204 http://svn.apache.org/r1688343
205 http://svn.apache.org/r1697013
206 http://svn.apache.org/r1697015
207 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-SubstituteInheritBefore-v5.patch
209 ylavic: updated to v5 including r1697013 and r1697015, the diff to v4 is:
210 http://people.apache.org/~ylavic/httpd-2.4.x-SubstituteInheritBefore-v4_vs_v5.diff
212 *) mod_proxy: Fix a race condition that caused a failed worker to be retried
213 before the retry period is over
214 Trunk version of patch:
215 http://svn.apache.org/r1664709
216 http://svn.apache.org/r1697323
217 Backport version for 2.4.x of patch:
218 Trunk version of patch works modulo CHANGES
220 niq: 1. the if(worker->s->retries) {} and comment at line 2917
221 don't seem to make any sense.
222 rpluem: This is just taken over from existing code. It is just indented
223 differently hence part of the path I think it should be marked
224 as TODO section. But this should be subject to another
226 2. Re: error handline line 2930 - can PROXY_WORKER_IS_USABLE
227 not be tested BEFORE opening connection?
228 rpluem: We could, but we can catch more race cases with the current code
229 as it also catches the case where a connection establishment
230 took long and the worker went into error meanwhile.
232 *) util_script: Make REDIRECT_URL a complete URL (where set).
234 trunk: http://svn.apache.org/viewvc?view=revision&revision=1677702
235 2.4.x: trunk patch applies.
238 *) core/mod_ssl: add Protocols/ProtocolsHonorOrder directives and new
239 protocols hooks to control Upgrade: and ALPN protocol switching.
240 HTTP_MISDIRECTED_REQUEST addition and handling in mod_ssl
241 trunk patch: http://svn.apache.org/r1697855
242 http://svn.apache.org/r1697339
243 http://svn.apache.org/r1696428
244 http://svn.apache.org/r1696266
245 http://svn.apache.org/r1696264
246 http://svn.apache.org/r1695874
247 http://svn.apache.org/r1695727
248 http://svn.apache.org/r1692516
249 http://svn.apache.org/r1692486
250 http://svn.apache.org/r1610674
251 http://svn.apache.org/r1685069
252 http://svn.apache.org/r1693918
253 http://svn.apache.org/r1698116
254 http://svn.apache.org/r1698133
255 http://svn.apache.org/r1694950
256 http://svn.apache.org/r1700968
257 http://svn.apache.org/r1701005
258 http://svn.apache.org/r1701145
259 http://svn.apache.org/r1701178
260 All changes to files in modules/http2 need to be ignored.
261 v2: added r1698116, r1693918 to patch
262 v3: added changes to ap_array_index and ap_array_contains
263 2.4.x patch: https://raw.githubusercontent.com/icing/mod_h2/master/sandbox/httpd/patches/core-protocols-v4.patch
266 *) mod_h2: add HTTP/2 support to httpd, depends on core/mod_ssl changes above
267 trunk patch: http://svn.apache.org/r1700783
268 http://svn.apache.org/r1688474
269 http://svn.apache.org/r1688475
270 http://svn.apache.org/r1689605
271 http://svn.apache.org/r1690120
272 http://svn.apache.org/r1690137
273 http://svn.apache.org/r1690248
274 http://svn.apache.org/r1691374
275 http://svn.apache.org/r1691582
276 http://svn.apache.org/r1691592
277 http://svn.apache.org/r1691819
278 http://svn.apache.org/r1691908
279 http://svn.apache.org/r1692285
280 http://svn.apache.org/r1692432
281 http://svn.apache.org/r1692486
282 http://svn.apache.org/r1694951
283 http://svn.apache.org/r1695885
284 http://svn.apache.org/r1695920
285 http://svn.apache.org/r1696264
286 http://svn.apache.org/r1696279
287 http://svn.apache.org/r1696428
288 http://svn.apache.org/r1696442
289 http://svn.apache.org/r1696565
290 http://svn.apache.org/r1696592
291 http://svn.apache.org/r1696607
292 http://svn.apache.org/r1696755
293 http://svn.apache.org/r1696881
294 http://svn.apache.org/r1697051
295 http://svn.apache.org/r1697339
296 http://svn.apache.org/r1697370
297 http://svn.apache.org/r1697389
298 http://svn.apache.org/r1697446
299 http://svn.apache.org/r1697543
300 http://svn.apache.org/r1697634
301 http://svn.apache.org/r1697855
302 http://svn.apache.org/r1698023
303 http://svn.apache.org/r1698103
304 http://svn.apache.org/r1698107
305 http://svn.apache.org/r1698116
306 http://svn.apache.org/r1698133
307 http://svn.apache.org/r1700271
308 http://svn.apache.org/r1700275
309 http://svn.apache.org/r1700514
310 http://svn.apache.org/r1700777
311 http://svn.apache.org/r1700917
312 http://svn.apache.org/r1700925
313 http://svn.apache.org/r1701204
314 2.4.x patch for this and core/mod_ssl: https://raw.githubusercontent.com/icing/mod_h2/master/sandbox/httpd/patches/core-h2-all-in-one-v4.patch
318 *) mod_socache_memcache: Add the 'MemcacheConnTTL' directive to control how
319 long to keep idle connections with the memcache server(s).
320 Change default value from 600 usec (!) to 15 sec. PR 58091
321 Measurements available in the svn commit message.
322 trunk: http://svn.apache.org/r1696105
323 http://svn.apache.org/r1700418
324 2.4.x: http://people.apache.org/~jailletc36/socache_memcache.diff
325 +1: jailletc36, ylavic
326 covener: please add compatibility tag to doc during backport
327 jailletc36: done in r1700418
329 *) mod_rewrite: Fix an harmless error spotted by sparse.
330 trunk: http://svn.apache.org/r1697735
331 2.4.x: trunk patch applies.
333 ylavic: I'd prefer the unambiguous parentheses in the macros definitions,
334 as you suggested on dev@.
336 *) Fix some spurious and/or inconsistant indent spotted by sparse
337 Fix some minor style issues.
338 trunk: http://svn.apache.org/r1700317
339 http://svn.apache.org/r1700318
340 http://svn.apache.org/r1700319
341 http://svn.apache.org/r1700320
342 http://svn.apache.org/r1700321
343 http://svn.apache.org/r1700322
344 http://svn.apache.org/r1700326
345 http://svn.apache.org/r1700328
346 http://svn.apache.org/r1700330
347 http://svn.apache.org/r1700331
348 http://svn.apache.org/r1700332
349 http://svn.apache.org/r1700334
350 http://svn.apache.org/r1700336
351 http://svn.apache.org/r1700338
352 2.4.x: http://people.apache.org/~jailletc36/sparse.diff
353 +1: jailletc36, ylavic
354 jailletc36: To ease review http://people.apache.org/~jailletc36/sparse_nospace.diff
355 is the same file as above but generated using svn diff -x --ignore-all-space
357 PATCHES/ISSUES THAT ARE BEING WORKED
359 *) mod_ssl: add ALPN support by allowing other modules to register callbacks
360 for negotiation of the application layer protocol. PR 52210.
361 trunk patch: http://svn.apache.org/r1332643
362 http://svn.apache.org/r1487772
363 http://svn.apache.org/r1670397
364 http://svn.apache.org/r1670434
365 http://svn.apache.org/r1670436
366 http://svn.apache.org/r1670578
367 http://svn.apache.org/r1670738
368 http://svn.apache.org/r1675459
369 http://svn.apache.org/r1676004
370 http://svn.apache.org/r1676709
371 http://svn.apache.org/r1681741
372 http://svn.apache.org/r1681746
373 http://svn.apache.org/r1685069
374 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-alpn-v4.patch
376 ylavic: Needs work wrt activation with a new Protocols directive:
377 http://www.mail-archive.com/dev@httpd.apache.org/msg62163.html
378 and also about SNI checks and status 421:
379 http://www.mail-archive.com/dev@httpd.apache.org/msg62230.html
380 Let's comment on @dev for Stefan Eissing (mod_h2) to be able to
383 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
384 fetching the request body, so to minimize the delay between it is supposed
385 to be alive and the first bytes sent: this is a best effort to prevent the
386 backend from closing because of idle or keepalive timeout in the meantime.
387 Also, handle a new "proxy-flushall" environment variable which allows to
388 flush any forwarded body data immediately. PR 56541+37920.
389 trunk patch: http://svn.apache.org/r1656259
390 http://svn.apache.org/r1656359 (CHANGES entry)
391 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
393 -0: jim: This seems to be a hit to normal performance, to handle an
394 error and/or non-normal condition. The pre-fetch is
395 expensive, and is always done, even before we know that
396 the backend is available to rec' it. I understand the
397 error described, but is the fix actually worth it (plus
398 it seems to allow for a DDoS vector).
399 ylavic: It seems to me that the problem is real since we reuse the
400 connection before prefetching 16K (either controlled by the
401 client, or by an input filter), we currently always prefetch
402 these bytes already. Regarding performance I don't see any
403 difference (more cycles) compared with the current code.
404 However I think I failed to rebuild the header_brigade when
405 the proxy loop is retried (ping), so I need to rework this.
406 Do you think we'd better remove the prefetch, or maybe just
407 make it nonblocking (by default)?
408 jim: Non-blocking seems the best way to handle...
410 PATCHES/ISSUES THAT ARE STALLED
412 * mod_systemd: New module, for integration with systemd on Linux.
413 trunk patch: http://svn.apache.org/r1393976
414 http://svn.apache.org/r1393997
415 http://svn.apache.org/r1484554
416 http://svn.apache.org/r1528032
417 http://svn.apache.org/r1528034
418 http://svn.apache.org/r1614821
419 http://svn.apache.org/r1618579
420 http://svn.apache.org/r1618588
421 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
424 * core: Add support for systemd socket activation.
425 trunk patch: http://svn.apache.org/r1511033
426 http://svn.apache.org/r1608686
427 http://svn.apache.org/r1608694
428 http://svn.apache.org/r1608703
429 http://svn.apache.org/r1608721
430 http://svn.apache.org/r1608744
431 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
434 * mod_proxy: Ensure network errors detected by the proxy are returned as
435 504 Gateway Timout as opposed to 502 Bad Gateway
436 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
437 2.4.x patch: trunk patch works modulo CHANGES
439 -1: rpluem: This change is still disputed. See
440 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
442 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
443 compiled by the build compiler instead of the host compiler.
444 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
445 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
446 http://svn.apache.org/viewvc?view=revision&revision=1328390
447 http://svn.apache.org/viewvc?view=revision&revision=1328714
448 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
449 fuankg: on hold until we agree for a better and more simple solution ...
451 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
452 Moved fixing of shebang to separate target so that it is
453 no longer executed by default and all CGIs remain inactive.
454 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
455 http://svn.apache.org/viewvc?view=revision&revision=1421203
456 http://svn.apache.org/viewvc?view=revision&revision=1421591
457 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
460 This commit is essentially deciding that an httpd install on
461 Windows now has printenv/testcgi written in 2 more languages.
462 To the extent that the usefulness is that it shows how to make scripts
463 of these types executable by httpd, I believe that the documentation
464 is the proper place to solve that. To the extent that the usefullness
465 is to show how to implement a CGI in these particular languages, I believe
466 that the httpd distribution and documentation in general is not the
467 place for that. Historically these types of scripts have caused problems
468 for downstream vendorsas well as newbies (and sometimes the intersection
469 of those two groups) who don't understand that these are information leaks
470 once they are enabled, and the subtlety of the way they are disabled ("Apache
471 messed up the first line; let me fix that") contributes to that.
472 fuankg notes: I've just added a big warning to all CGI scripts which should now
473 make absolutely clear that these CGIs are for testing purpose only - so those
474 who enable those scripts with inserting the right shebang should be 100% aware
475 of any risks (this should cover your last point).
476 jim: trawick, does the above address your concerns?
477 trawick: to some extent (somebody reading the script gets an idea)
478 Why isn't the configuration requirement documented instead
479 of described indirectly in a sample?
480 Why are these new samples added to the install without three
481 votes? (I didn't veto it; put your name next to the two
482 existing ones and I'll be satisified that enough people
483 considered this addition as an appropriate solution for a
484 real httpd usability problem.)
485 wrowe: I'd agree with trawick, and suggest that these scripts can begin
486 their life somewhere in the manual/ tree. This really seems like
487 the place where /usr/share/httpd/examples/ would be useful, but
488 there isn't an ordinary directory for that. Since we want none
489 of the scripts to function 'out of the box', what about a new
490 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples