While logged out:
$ curl -I 'https://en.wikipedia.org/w/index.php?title=Wikipedia:Administrators%27_noticeboard/Incidents&action=history' HTTP/2 200 date: Mon, 05 Sep 2022 10:43:55 GMT server: mw1351.eqiad.wmnet x-content-type-options: nosniff content-language: en vary: Accept-Encoding,Cookie,Authorization last-modified: Mon, 05 Sep 2022 10:32:48 GMT content-type: text/html; charset=UTF-8 age: 38417 x-cache: cp1083 hit, cp1079 hit/2 x-cache-status: hit-front server-timing: cache;desc="hit-front", host;desc="cp1079" strict-transport-security: max-age=106384710; includeSubDomains; preload report-to: { "group": "wm_nel", "max_age": 86400, "endpoints": [{ "url": "https://intake-logging.wikimedia.org/v1/events?stream=w3c.reportingapi.network_error&schema_uri=/w3c/reportingapi/network_error/1.0.0" }] } nel: { "report_to": "wm_nel", "max_age": 86400, "failure_fraction": 0.05, "success_fraction": 0.0} set-cookie: WMF-Last-Access=05-Sep-2022;Path=/;HttpOnly;secure;Expires=Fri, 07 Oct 2022 12:00:00 GMT set-cookie: WMF-Last-Access-Global=05-Sep-2022;Path=/;Domain=.wikipedia.org;HttpOnly;secure;Expires=Fri, 07 Oct 2022 12:00:00 GMT accept-ch: Sec-CH-UA-Arch,Sec-CH-UA-Bitness,Sec-CH-UA-Full-Version-List,Sec-CH-UA-Model,Sec-CH-UA-Platform-Version permissions-policy: interest-cohort=(),ch-ua-arch=(self "intake-analytics.wikimedia.org"),ch-ua-bitness=(self "intake-analytics.wikimedia.org"),ch-ua-full-version-list=(self "intake-analytics.wikimedia.org"),ch-ua-model=(self "intake-analytics.wikimedia.org"),ch-ua-platform-version=(self "intake-analytics.wikimedia.org") x-client-ip: <removed> cache-control: private, s-maxage=0, max-age=0, must-revalidate set-cookie: GeoIP=<removed>; Path=/; secure; Domain=.wikipedia.org accept-ranges: bytes content-length: 186958
While logged in:
I suspect this is fallout from the URL query sorting change (cc @ori) not invalidating the cache of history pages properly.
Also reported at https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical)#Article_History_not_up-to-date_when_logged_out.