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
124 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
125 [ start all new proposals below, under PATCHES PROPOSED. ]
129 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
130 [ New proposals should be added at the end of the list ]
132 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
133 allowing per backend TLS configuration.
134 trunk patch: http://svn.apache.org/r1740928
135 http://svn.apache.org/r1740960
136 http://svn.apache.org/r1740967
137 http://svn.apache.org/r1740987
138 http://svn.apache.org/r1740998
139 http://svn.apache.org/r1742697
140 http://svn.apache.org/r1756976
141 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co.patch
144 *) event: close a race condition where we might re-enable listeners while they
145 are already or about to be closed.
146 trunk patch: http://svn.apache.org/r1774541
147 2.4.x patch: trunk works
150 *) mod_proxy_fcgi: Return HTTP 504 rather than 503 in case of proxy timeout.
151 trunk patch: http://svn.apache.org/r1775858
152 2.4 patch: trunk works (modulo CHANGES)
155 *) mod_remoteip: Add PROXY protocol support
156 trunk patch: http://svn.apache.org/r1776575
157 http://svn.apache.org/r1776578 (doc fix)
158 http://svn.apache.org/r1776627 (shortened name + doc fix)
159 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
160 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
161 2.4 patch (includes CHANGES):
162 http://people.apache.org/~druggeri/patches/RemoteIPProxyProtocol.2.4.x.patch
165 *) mod_filter: AddOutputFilterByType should use underlying filters type, not just
166 AP_FTYPE_CONTENT_SET. PR58856
167 trunk patch: http://svn.apache.org/r1726705
168 2.4.x patch: trunk works
171 *) mod_watchdog: Use pconf as parent pool so mutexes get cleaned on restarts/reloads
172 and fix leaking sems (https://bugzilla.redhat.com/show_bug.cgi?id=1410883)
173 trunk patch: http://svn.apache.org/r1778319
174 http://svn.apache.org/r1778331
175 2.4.x patch: trunk works
178 *) mod_brotli: Backport of mod_brotli filter
179 trunk patch: http://svn.apache.org/r1761714
180 http://svn.apache.org/r1762512
181 http://svn.apache.org/r1762515
182 http://svn.apache.org/r1771791
183 http://svn.apache.org/r1779077
184 2.4.x patch: http://home.apache.org/~jim/patches/brotli-2.4.patch
187 PATCHES/ISSUES THAT ARE BEING WORKED
188 [ New entried should be added at the START of the list ]
190 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
191 proxy_post_handshake hook fails.
192 Trunk patch: r1645529 (works)
193 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
195 ylavic: there may be missing bits, see thread for commit r1736510.
197 *) core: Drop an invalid Last-Modified header value coming
198 from a (F)CGI script instead of replacing it with Unix epoch.
199 Warn the users about Last-Modified header value replacements
200 and violations of the RFC.
201 trunk patch: http://svn.apache.org/r1748379
202 http://svn.apache.org/r1750747
203 http://svn.apache.org/r1750749
204 http://svn.apache.org/r1750953
205 http://svn.apache.org/r1751138
206 http://svn.apache.org/r1751139
207 http://svn.apache.org/r1751147
208 http://svn.apache.org/r1757818
209 2.4.x: trunk patches work, final view:
210 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
211 The problem has been discussed in dev@ extensively but we did not reach a common
212 agreement about how to proceed in the long term. While we wait, I would really like
213 to introduce useful logs for the users (the starting point of this change was a users@
214 email thread). If this is not the right way to go I will move the patch to other
215 sections of STATUS (stalled or being worked).
216 The code has been tested with a simple PHP script returning different Last-Modified
217 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
220 *) http: Don't remove the Content-Length of zero from a HEAD response if
221 it comes from an origin server, module or script. Allow the previous
222 behaviour (for legacy/buggy modules only, not origin) by also backporting
223 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
224 comes for free with the same commit).
225 trunk patch: http://svn.apache.org/r1554303
226 http://svn.apache.org/r1678215
227 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
229 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
230 ints added at the end of core_server_config, the proposed merge
231 does a minor bump only.
232 minfrin: Two new directives need to be documented.
234 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
235 fetching the request body, so to minimize the delay between it is supposed
236 to be alive and the first bytes sent: this is a best effort to prevent the
237 backend from closing because of idle or keepalive timeout in the meantime.
238 Also, handle a new "proxy-flushall" environment variable which allows to
239 flush any forwarded body data immediately. PR 56541+37920.
240 trunk patch: http://svn.apache.org/r1656259
241 http://svn.apache.org/r1656359 (CHANGES entry)
242 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
244 -0: jim: This seems to be a hit to normal performance, to handle an
245 error and/or non-normal condition. The pre-fetch is
246 expensive, and is always done, even before we know that
247 the backend is available to rec' it. I understand the
248 error described, but is the fix actually worth it (plus
249 it seems to allow for a DDoS vector).
250 ylavic: It seems to me that the problem is real since we reuse the
251 connection before prefetching 16K (either controlled by the
252 client, or by an input filter), we currently always prefetch
253 these bytes already. Regarding performance I don't see any
254 difference (more cycles) compared with the current code.
255 However I think I failed to rebuild the header_brigade when
256 the proxy loop is retried (ping), so I need to rework this.
257 Do you think we'd better remove the prefetch, or maybe just
258 make it nonblocking (by default)?
259 jim: Non-blocking seems the best way to handle...
261 * mod_dav: Allow other modules to become providers and add ACLs
262 to the DAV response. Requires a release of apr-util v1.6.
263 trunk patch: http://svn.apache.org/r1748322
264 2.4.x: trunk works modulo CHANGES/MMN
266 rpluem asks: Will this compile with apr-util < v1.6 and keep
267 mod_dav working (without the new features of the patch of course)?
268 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
269 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
270 minfrin: Yes, as you can see in the patch everything applies only
271 if APR_XML_X2T_PARSED is defined, and the patch was tested with
272 both apr-util v1.6 and apr-util v1.5.
273 -1: jorton, breaks binary backwards compat per dev@ discuss
274 msgid <20160902120654.GA12674@redhat.com>
275 (& also, making the structure change with apr-util version
276 means it breaks binary compat across an apr-util upgrade?)
278 * Support PCRE2 (10.x) in place of PCRE (8.x).
279 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
281 http://svn.apache.org/r1773454
282 http://svn.apache.org/r1773741
283 http://svn.apache.org/r1773742
284 http://svn.apache.org/r1773839
285 http://svn.apache.org/r1773870
286 http://svn.apache.org/r1773882
287 wrowe notes that the current code is too inefficient, owing to the fact
288 that the ovector is a required allocation and is no longer allocated on
289 the stack, by design. The correct fix is an apr userdata allocation on
290 the appropriate pool, which would be thread-safe, but the actual API of
291 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
292 the ap_regex_t, because a single regex may be used by many threads in
293 parallel and is not thread-safe beyond initialization.
294 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
295 this as a thread safe storage buffer for the majority of cases (<10 $args)
296 and we don't have a portable tls mechanism to do so.
299 PATCHES/ISSUES THAT ARE STALLED
301 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
302 backport keeps syslog logging as part of httpd core and only adds
303 API to allow other modules to be used for error logging.
304 trunk patch: http://svn.apache.org/r1525597
305 http://svn.apache.org/r1525664
306 http://svn.apache.org/r1525845
307 http://svn.apache.org/r1527003
308 http://svn.apache.org/r1527005
309 http://svn.apache.org/r1532344
310 http://svn.apache.org/r1539988
311 http://svn.apache.org/r1541029
312 http://svn.apache.org/r1543979
313 http://svn.apache.org/r1544156
314 http://svn.apache.org/r1626978
315 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
317 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
318 needs 2 args which is not valid in ErrorLog manual)
319 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
320 (sorry, haven't finished reviewing completely)
321 jim: What is the status of this??
323 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
324 and ProxyMatch section to distinguish between normal workers and workers
325 with regex substitutions in the name. Implement handling of such workers
326 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
327 matched and used for request. PR 43513.
328 trunk patch: http://svn.apache.org/r1609680
329 http://svn.apache.org/r1609688
330 http://svn.apache.org/r1641381
331 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
332 Also added missing r1609688 to the patchset.
333 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
335 -0: covener tried to review this one in Austin with Jeff. Does the added match function
336 really cover a very narrow set of parameters with the way it skips over backreferences?
337 Also, why a new API vs. just setting the field inline?
339 * mod_systemd: New module, for integration with systemd on Linux.
340 trunk patch: http://svn.apache.org/r1393976
341 http://svn.apache.org/r1393997
342 http://svn.apache.org/r1484554
343 http://svn.apache.org/r1528032
344 http://svn.apache.org/r1528034
345 http://svn.apache.org/r1614821
346 http://svn.apache.org/r1618579
347 http://svn.apache.org/r1618588
348 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
350 sf comments: The IdleShutdown logic seems broken. Consider a single
351 active connection that is stalled for 10 seconds. That
352 connection will be broken after GracefulShutdownTimeout.
353 A better logic would be to check if there is any open
354 connection that is not in keep-alive state.
356 * mod_journald: Add new module mod_journald to log error logs into journald.
357 This patch needs changes done in mod_systemd patch (already
359 trunk patch: http://svn.apache.org/r1610339
360 http://svn.apache.org/r1621806
361 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
363 rjung, minfrin: Not understanding "This patch needs changes done in
364 mod_systemd patch", am I right in understanding this patch is
366 jkaluza: No, that patch is not committed yet. It is in STALLED section.
367 The link for that patch is: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
369 * core: Add support for systemd socket activation.
370 trunk patch: http://svn.apache.org/r1511033
371 http://svn.apache.org/r1608686
372 http://svn.apache.org/r1608694
373 http://svn.apache.org/r1608703
374 http://svn.apache.org/r1608721
375 http://svn.apache.org/r1608744
376 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
379 * mod_proxy: Ensure network errors detected by the proxy are returned as
380 504 Gateway Timeout as opposed to 502 Bad Gateway
381 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
382 2.4.x patch: trunk patch works modulo CHANGES
384 -1: rpluem: This change is still disputed. See
385 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
387 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
388 compiled by the build compiler instead of the host compiler.
389 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
390 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
391 http://svn.apache.org/viewvc?view=revision&revision=1328390
392 http://svn.apache.org/viewvc?view=revision&revision=1328714
393 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
394 fuankg: on hold until we agree for a better and more simple solution ...
396 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
397 Moved fixing of shebang to separate target so that it is
398 no longer executed by default and all CGIs remain inactive.
399 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
400 http://svn.apache.org/viewvc?view=revision&revision=1421203
401 http://svn.apache.org/viewvc?view=revision&revision=1421591
402 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
405 This commit is essentially deciding that an httpd install on
406 Windows now has printenv/testcgi written in 2 more languages.
407 To the extent that the usefulness is that it shows how to make scripts
408 of these types executable by httpd, I believe that the documentation
409 is the proper place to solve that. To the extent that the usefullness
410 is to show how to implement a CGI in these particular languages, I believe
411 that the httpd distribution and documentation in general is not the
412 place for that. Historically these types of scripts have caused problems
413 for downstream vendorsas well as newbies (and sometimes the intersection
414 of those two groups) who don't understand that these are information leaks
415 once they are enabled, and the subtlety of the way they are disabled ("Apache
416 messed up the first line; let me fix that") contributes to that.
417 fuankg notes: I've just added a big warning to all CGI scripts which should now
418 make absolutely clear that these CGIs are for testing purpose only - so those
419 who enable those scripts with inserting the right shebang should be 100% aware
420 of any risks (this should cover your last point).
421 jim: trawick, does the above address your concerns?
422 trawick: to some extent (somebody reading the script gets an idea)
423 Why isn't the configuration requirement documented instead
424 of described indirectly in a sample?
425 Why are these new samples added to the install without three
426 votes? (I didn't veto it; put your name next to the two
427 existing ones and I'll be satisfied that enough people
428 considered this addition as an appropriate solution for a
429 real httpd usability problem.)
430 wrowe: I'd agree with trawick, and suggest that these scripts can begin
431 their life somewhere in the manual/ tree. This really seems like
432 the place where /usr/share/httpd/examples/ would be useful, but
433 there isn't an ordinary directory for that. Since we want none
434 of the scripts to function 'out of the box', what about a new
435 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
438 * core: block Define and Undefine in vhost and directory context. Because
439 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
440 trunk patch: http://svn.apache.org/r1656063
441 http://svn.apache.org/r1656122
442 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
443 +1: covener (I need to review the docs manually in this area)
444 -1: wrowe (blocking will break "working" .conf files on a subversion update
445 meant to pick up security fixes. "Alerting" I would agree to.)