Yay, this is really cool! Current warnings sorted by popularity: maxsem@fluorine:/a/mw-log$ cat deprecated.log | grep -oP '(?<=INFO: ).*' | sort | uniq -c | sort -rn 20598 Use of SpecialRecentChangesQuery hook (used in FlaggedRevsUIHooks::modifyRecentChangesQuery) was deprecated in MediaWiki 1.23. [Called from SpecialRecentChanges::runMainQueryHook in /srv/mediawiki/php-1.29.0-wmf.8/includes/specials/SpecialRecentchanges.php at line 287] 2705 Use of wfSetupSession was deprecated in MediaWiki 1.27. [Called from CollectionSession::startSession in /srv/mediawiki/php-1.29.0-wmf.8/extensions/Collection/Collection.session.php at line 38] 2271 Use of SpecialWatchlistQuery hook (used in FlaggedRevsUIHooks::modifyChangesListQuery) was deprecated in MediaWiki 1.23. [Called from SpecialWatchlist::runMainQueryHook in /srv/mediawiki/php-1.29.0-wmf.8/includes/specials/SpecialWatchlist.php at line 309] 2094 Use of Revision::getText was deprecated in MediaWiki 1.21. [Called from FlaggedRevision::getRevText in /srv/mediawiki/php-1.29.0-wmf.8/extensions/FlaggedRevs/backend/FlaggedRevision.php at line 480] 1821 Use of SpecialRecentChangesQuery hook (used in FlaggedRevsUIHooks::modifyRecentChangesQuery) was deprecated in MediaWiki 1.23. [Called from SpecialRecentChanges::runMainQueryHook in /srv/mediawiki/php-1.29.0-wmf.9/includes/specials/SpecialRecentchanges.php at line 287] 189 Use of SyntaxHighlight_GeSHi::prepare is deprecated. [Called from ScribuntoContent::fillParserOutput in /srv/mediawiki/php-1.29.0-wmf.8/extensions/Scribunto/common/ScribuntoContent.php at line 128] 189 Use of SyntaxHighlight_GeSHi::buildHeadItem is deprecated. [Called from ScribuntoContent::fillParserOutput in /srv/mediawiki/php-1.29.0-wmf.8/extensions/Scribunto/common/ScribuntoContent.php at line 141] 132 Use of SyntaxHighlight_GeSHi::prepare is deprecated. [Called from ScribuntoContent::fillParserOutput in /srv/mediawiki/php-1.29.0-wmf.9/extensions/Scribunto/common/ScribuntoContent.php at line 128] 132 Use of SyntaxHighlight_GeSHi::buildHeadItem is deprecated. [Called from ScribuntoContent::fillParserOutput in /srv/mediawiki/php-1.29.0-wmf.9/extensions/Scribunto/common/ScribuntoContent.php at line 141] 92 Use of ExtractThumbParameters was deprecated in MediaWiki 1.22. [Called from wfStreamThumb in /srv/mediawiki/php-1.29.0-wmf.9/thumb.php at line 174] 70 Use of Revision::getRawUser was deprecated in MediaWiki 1.25. [Called from FlaggedRevsHooks::incrementReverts in /srv/mediawiki/php-1.29.0-wmf.8/extensions/FlaggedRevs/backend/FlaggedRevs.hooks.php at line 702] 30 Use of wfSetupSession was deprecated in MediaWiki 1.27. [Called from CollectionSession::startSession in /srv/mediawiki/php-1.29.0-wmf.9/extensions/Collection/Collection.session.php at line 38] 20 Use of wfSetupSession was deprecated in MediaWiki 1.27. [Called from AbuseFilter::executeFilterActions in /srv/mediawiki/php-1.29.0-wmf.8/extensions/AbuseFilter/includes/AbuseFilter.class.php at line 796] 18 Use of Revision::getRawUserText was deprecated in MediaWiki 1.25. [Called from FlaggablePageView::addToDiffView in /srv/mediawiki/php-1.29.0-wmf.8/extensions/FlaggedRevs/frontend/FlaggablePageView.php at line 1498] 13 Use of SpecialWatchlistQuery hook (used in FlaggedRevsUIHooks::modifyChangesListQuery) was deprecated in MediaWiki 1.23. [Called from SpecialWatchlist::runMainQueryHook in /srv/mediawiki/php-1.29.0-wmf.9/includes/specials/SpecialWatchlist.php at line 309] 11 Use of ExtractThumbParameters was deprecated in MediaWiki 1.22. [Called from wfStreamThumb in /srv/mediawiki/php-1.29.0-wmf.8/thumb.php at line 174] 4 Use of Linker::link with parameter $query as string (should be array) was deprecated in MediaWiki 1.20. [Called from Linker::linkKnown in /srv/mediawiki/php-1.29.0-wmf.8/includes/Linker.php at line 163] 3 Use of wfSetupSession was deprecated in MediaWiki 1.27. [Called from wfAjaxPostCollection in /srv/mediawiki/php-1.29.0-wmf.8/extensions/Collection/Collection.php at line 268] 2 Use of wfSetupSession was deprecated in MediaWiki 1.27. [Called from AbuseFilter::executeFilterActions in /srv/mediawiki/php-1.29.0-wmf.9/extensions/AbuseFilter/includes/AbuseFilter.class.php at line 796] On Wed, Jan 25, 2017 at 4:18 PM, Erik Bernhardson < ebernhardson(a)wikimedia.org&gt; wrote: -- Best regards, Max Semenik ([[User:MaxSem]])

Nice, thanks!​ Here is a simple dashboard: https://logstash.wikimedia.org/app/kibana#/dashboard/mediawiki-deprecated

On 26/01/17 01:18, Erik Bernhardson wrote: <snip> Thanks for the logging channel, that is going to be quite helpful. To anyone spotting them, please fill corresponding tasks against the appropriate extension/skin and add in #wikimedia-log-errors to the task. There are a few things that puzzle me though: We have CI running with $wgDevelopmentWarnings = true; which fails the test whenever wfDeprecated() is invoked. But I guess lot of extension code lack tests for those hooks. We have a strict deprecation policy which ask for extensions to be updated when a code is @deprecated. And removing code/hook must only be made when we have verified that all extensions we host have been migrated. https://www.mediawiki.org/wiki/Deprecation Then mistakes happen :( -- Antoine "hashar" Musso