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. ]
113 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
114 [ New proposals should be added at the end of the list ]
116 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
117 and ProxyMatch section to distinguish between normal workers and workers
118 with regex substitutions in the name. Implement handling of such workers
119 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
120 matched and used for request. PR 43513.
121 trunk patch: http://svn.apache.org/r1609680
122 http://svn.apache.org/r1609688
123 http://svn.apache.org/r1641381
124 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
125 Also added missing r1609688 to the patchset.
126 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
128 -0: covener tried to review this one in Austin with Jeff. Does the added match function
129 really cover a very narrow set of parameters with the way it skips over backreferences?
130 Also, why a new API vs. just setting the field inline?
132 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
133 backport keeps syslog logging as part of httpd core and only adds
134 API to allow other modules to be used for error logging.
135 trunk patch: http://svn.apache.org/r1525597
136 http://svn.apache.org/r1525664
137 http://svn.apache.org/r1525845
138 http://svn.apache.org/r1527003
139 http://svn.apache.org/r1527005
140 http://svn.apache.org/r1532344
141 http://svn.apache.org/r1539988
142 http://svn.apache.org/r1541029
143 http://svn.apache.org/r1543979
144 http://svn.apache.org/r1544156
145 http://svn.apache.org/r1626978
146 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
148 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
149 needs 2 args which is not valid in ErrorLog manual)
150 trawick: nit: fix "writing" in "/* NULL if we are writting to syslog */"
151 (sorry, haven't finished reviewing completely)
153 * mod_journald: Add new module mod_journald to log error logs into journald.
154 This patch needs changes done in mod_systemd patch (already
156 trunk patch: http://svn.apache.org/r1610339
157 http://svn.apache.org/r1621806
158 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
161 * MPMs: Support SO_REUSEPORT to create multiple duplicated listener
162 records for scalability (full log in 2.4.x patch).
163 trunk patch: http://svn.apache.org/r1599531
164 http://svn.apache.org/r1599593
165 http://svn.apache.org/r1599601
166 http://svn.apache.org/r1599603
167 http://svn.apache.org/r1601558
168 http://svn.apache.org/r1629909
169 http://svn.apache.org/r1629918
170 http://svn.apache.org/r1629990
171 http://svn.apache.org/r1635521
172 http://svn.apache.org/r1635859
173 http://svn.apache.org/r1640145
174 http://svn.apache.org/r1640161
175 http://svn.apache.org/r1640184
176 http://svn.apache.org/r1640763
177 http://svn.apache.org/r1643179
178 http://svn.apache.org/r1656368
179 http://svn.apache.org/r1679714
180 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_listeners_buckets-v3.patch
183 *) http: Don't remove the Content-Length of zero from a HEAD response if
184 it comes from an origin server, module or script. Allow the previous
185 behaviour (for legacy/buggy modules only, not origin) by also backporting
186 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
187 comes for free with the same commit).
188 trunk patch: http://svn.apache.org/r1554303
189 http://svn.apache.org/r1678215
190 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
192 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
193 ints added at the end of core_server_config, the proposed merge
194 does a minor bump only.
196 *) mod_substitute: Configure patterns merge order. PR 57641
197 trunk patch: http://svn.apache.org/r1684900
198 http://svn.apache.org/r1687539
199 http://svn.apache.org/r1687680
200 http://svn.apache.org/r1688331
201 http://svn.apache.org/r1688339
202 http://svn.apache.org/r1688340
203 http://svn.apache.org/r1688343
204 http://svn.apache.org/r1697013
205 http://svn.apache.org/r1697015
206 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-SubstituteInheritBefore-v5.patch
208 ylavic: updated to v5 including r1697013 and r1697015, the diff to v4 is:
209 http://people.apache.org/~ylavic/httpd-2.4.x-SubstituteInheritBefore-v4_vs_v5.diff
211 *) mod_proxy: Fix a race condition that caused a failed worker to be retried
212 before the retry period is over
213 Trunk version of patch:
214 http://svn.apache.org/r1664709
215 http://svn.apache.org/r1697323
216 Backport version for 2.4.x of patch:
217 Trunk version of patch works modulo CHANGES
219 niq: 1. the if(worker->s->retries) {} and comment at line 2917
220 don't seem to make any sense.
221 rpluem: This is just taken over from existing code. It is just indented
222 differently hence part of the path I think it should be marked
223 as TODO section. But this should be subject to another
225 2. Re: error handline line 2930 - can PROXY_WORKER_IS_USABLE
226 not be tested BEFORE opening connection?
227 rpluem: We could, but we can catch more race cases with the current code
228 as it also catches the case where a connection establishment
229 took long and the worker went into error meanwhile.
231 *) util_script: Make REDIRECT_URL a complete URL (where set).
233 trunk: http://svn.apache.org/viewvc?view=revision&revision=1677702
234 2.4.x: trunk patch applies.
237 *) core/mod_ssl: add Protocols/ProtocolsHonorOrder directives and new
238 protocols hooks to control Upgrade: and ALPN protocol switching.
239 HTTP_MISDIRECTED_REQUEST addition and handling in mod_ssl
240 trunk patch: http://svn.apache.org/r1697855
241 http://svn.apache.org/r1697339
242 http://svn.apache.org/r1696428
243 http://svn.apache.org/r1696266
244 http://svn.apache.org/r1696264
245 http://svn.apache.org/r1695874
246 http://svn.apache.org/r1695727
247 http://svn.apache.org/r1692516
248 http://svn.apache.org/r1692486
249 http://svn.apache.org/r1610674
250 http://svn.apache.org/r1685069
251 http://svn.apache.org/r1693918
252 http://svn.apache.org/r1698116
253 http://svn.apache.org/r1698133
254 http://svn.apache.org/r1694950
255 http://svn.apache.org/r1700968
256 http://svn.apache.org/r1701005
257 http://svn.apache.org/r1701145
258 http://svn.apache.org/r1701178
259 All changes to files in modules/http2 need to be ignored.
260 v2: added r1698116, r1693918 to patch
261 v3: added changes to ap_array_index and ap_array_contains
262 2.4.x patch: https://raw.githubusercontent.com/icing/mod_h2/master/sandbox/httpd/patches/core-protocols-v4.patch
265 *) mod_h2: add HTTP/2 support to httpd, depends on core/mod_ssl changes above
266 2.4.x branch for this and core/mod_ssl: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.17-protocols-http2
267 See diff and merged changelists via:
268 svn diff ^/httpd/httpd/branches/2.4.x ^/httpd/httpd/branches/2.4.17-protocols-http2
271 *) mod_slotmem_shm: Fix slots/SHM files names on restart for systems that
272 can't create new (clear) slots while previous children gracefully stopping
273 still use the old ones (e.g. Windows, OS2). PR 58024.
274 trunk patch: http://svn.apache.org/r1702450
275 http://svn.apache.org/r1702473
276 http://svn.apache.org/r1702501
277 http://svn.apache.org/r1702955
278 http://svn.apache.org/r1703149
279 http://svn.apache.org/r1703157
280 http://svn.apache.org/r1703169
281 http://svn.apache.org/r1703200
282 2.4.x patch: trunk works (module CHANGES)
283 merge patch: http://people.apache.org/~ylavic/httpd-2.4.x-mod_slotmem_shm-generation.patch
286 *) mod_proxy: don't recyle backend announced "Connection: close" connections
287 to avoid reusing it should the close be effective after some new request
289 trunk patch: http://svn.apache.org/r1678763
290 http://svn.apache.org/r1703807
291 http://svn.apache.org/r1703813
292 2.4.x patch: trunk works (module CHANGES)
294 ylavic: while at it, I also included r1678763 which is only an
295 optimization, but allows to keep code in sync with trunk.
297 *) mod_proxy: Fix ProxySourceAddress binding failure with AH00938. PR 56687.
298 trunk patch: http://svn.apache.org/r1703902
299 2.4.x patch: trunk works (module CHANGES)
302 * mod_cache: r->err_headers_out is not merged into
303 r->headers when mod_cache is enabled and the response
304 is cached for the first time.
305 trunk patch: http://svn.apache.org/r1704392
306 http://svn.apache.org/r1704395
307 2.4.x patch: trunk works
311 PATCHES/ISSUES THAT ARE BEING WORKED
313 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
314 fetching the request body, so to minimize the delay between it is supposed
315 to be alive and the first bytes sent: this is a best effort to prevent the
316 backend from closing because of idle or keepalive timeout in the meantime.
317 Also, handle a new "proxy-flushall" environment variable which allows to
318 flush any forwarded body data immediately. PR 56541+37920.
319 trunk patch: http://svn.apache.org/r1656259
320 http://svn.apache.org/r1656359 (CHANGES entry)
321 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
323 -0: jim: This seems to be a hit to normal performance, to handle an
324 error and/or non-normal condition. The pre-fetch is
325 expensive, and is always done, even before we know that
326 the backend is available to rec' it. I understand the
327 error described, but is the fix actually worth it (plus
328 it seems to allow for a DDoS vector).
329 ylavic: It seems to me that the problem is real since we reuse the
330 connection before prefetching 16K (either controlled by the
331 client, or by an input filter), we currently always prefetch
332 these bytes already. Regarding performance I don't see any
333 difference (more cycles) compared with the current code.
334 However I think I failed to rebuild the header_brigade when
335 the proxy loop is retried (ping), so I need to rework this.
336 Do you think we'd better remove the prefetch, or maybe just
337 make it nonblocking (by default)?
338 jim: Non-blocking seems the best way to handle...
340 PATCHES/ISSUES THAT ARE STALLED
342 * mod_systemd: New module, for integration with systemd on Linux.
343 trunk patch: http://svn.apache.org/r1393976
344 http://svn.apache.org/r1393997
345 http://svn.apache.org/r1484554
346 http://svn.apache.org/r1528032
347 http://svn.apache.org/r1528034
348 http://svn.apache.org/r1614821
349 http://svn.apache.org/r1618579
350 http://svn.apache.org/r1618588
351 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
354 * core: Add support for systemd socket activation.
355 trunk patch: http://svn.apache.org/r1511033
356 http://svn.apache.org/r1608686
357 http://svn.apache.org/r1608694
358 http://svn.apache.org/r1608703
359 http://svn.apache.org/r1608721
360 http://svn.apache.org/r1608744
361 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
364 * mod_proxy: Ensure network errors detected by the proxy are returned as
365 504 Gateway Timout as opposed to 502 Bad Gateway
366 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
367 2.4.x patch: trunk patch works modulo CHANGES
369 -1: rpluem: This change is still disputed. See
370 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
372 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
373 compiled by the build compiler instead of the host compiler.
374 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
375 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
376 http://svn.apache.org/viewvc?view=revision&revision=1328390
377 http://svn.apache.org/viewvc?view=revision&revision=1328714
378 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
379 fuankg: on hold until we agree for a better and more simple solution ...
381 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
382 Moved fixing of shebang to separate target so that it is
383 no longer executed by default and all CGIs remain inactive.
384 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
385 http://svn.apache.org/viewvc?view=revision&revision=1421203
386 http://svn.apache.org/viewvc?view=revision&revision=1421591
387 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
390 This commit is essentially deciding that an httpd install on
391 Windows now has printenv/testcgi written in 2 more languages.
392 To the extent that the usefulness is that it shows how to make scripts
393 of these types executable by httpd, I believe that the documentation
394 is the proper place to solve that. To the extent that the usefullness
395 is to show how to implement a CGI in these particular languages, I believe
396 that the httpd distribution and documentation in general is not the
397 place for that. Historically these types of scripts have caused problems
398 for downstream vendorsas well as newbies (and sometimes the intersection
399 of those two groups) who don't understand that these are information leaks
400 once they are enabled, and the subtlety of the way they are disabled ("Apache
401 messed up the first line; let me fix that") contributes to that.
402 fuankg notes: I've just added a big warning to all CGI scripts which should now
403 make absolutely clear that these CGIs are for testing purpose only - so those
404 who enable those scripts with inserting the right shebang should be 100% aware
405 of any risks (this should cover your last point).
406 jim: trawick, does the above address your concerns?
407 trawick: to some extent (somebody reading the script gets an idea)
408 Why isn't the configuration requirement documented instead
409 of described indirectly in a sample?
410 Why are these new samples added to the install without three
411 votes? (I didn't veto it; put your name next to the two
412 existing ones and I'll be satisified that enough people
413 considered this addition as an appropriate solution for a
414 real httpd usability problem.)
415 wrowe: I'd agree with trawick, and suggest that these scripts can begin
416 their life somewhere in the manual/ tree. This really seems like
417 the place where /usr/share/httpd/examples/ would be useful, but
418 there isn't an ordinary directory for that. Since we want none
419 of the scripts to function 'out of the box', what about a new
420 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples