Change Details

The next target for WMF production after PHP 7.4, is PHP 8.1. This task is the logical equivalent of {T271736} and will incorporate: * Making CI passing and enforced ("voting") for MediaWiki core on PHP 8.0 and PHP 8.1. * Making CI passing wmf-deployed MediaWiki extensions on PHP 8.0 and PHP 8.1. * Provision PHP 8.1 in production via puppet and docker (including any ports or changes needed for php extension packages such as php-apcu, php-luasandbox, php-excimer, etc.) * Configure MW with ICU emulation for PHP 8.1 that matches PHP 7.4 (see also: {T263437}, {T292552}). * Benchmarks for different workloads and different clusters. * WikimediaDebug option? * Client-side ramup via WikimediaEvents cookie. * Per-cluster rampup: Per-cluster rampup: [ ] App servers [ ] N% of all cookie-based traffic to Appservers and API appservers [ ] Parsoid [ ] Job runners [ ] Appservers [ ] API appservers [ ] Snapshot hosts ("dumps") [ ] Deployment hosts [ ] Maintenance hosts [ ] Wikitech host

{icon chevron-left} {T271736} | [None yet] {icon chevron-right} The next target for WMF production after PHP 7.4, is PHP 8.1. This will incorporate: [ ] Assurance that this should work [x] CI configured to require PHP 8.3 to pass for all production code [x] Making CI passing and enforced ("voting") for MediaWiki core on PHP 8.0 and PHP 8.1. [x] Making CI passing wmf-deployed MediaWiki extensions and skins on PHP 8.0 and PHP 8.1. [ ] Other tooling changes as needed [ ] Preparation of Wikimedia production [ ] Provision PHP 8.1 in production via puppet and docker (including any ports or changes needed for php extension packages such as php-apcu, php-luasandbox, php-excimer, etc.) [ ] Configure MW with ICU emulation for PHP 8.1 that matches PHP 7.4 (see also: T263437, T292552). [ ] Pre-launch testing [ ] Benchmarks for different workloads and different clusters. [ ] ? Add an option to WikimediaDebug to select which version is used [ ] Add ability to do consistent client-side ramp-up via a WikimediaEvents cookie. [ ] Per-cluster ramp-up: [ ] App servers [ ] N% of all cookie-based traffic to Appservers and API appservers [ ] Parsoid [ ] Job runners [ ] Appservers [ ] API appservers [ ] Snapshot hosts ("dumps") [ ] Deployment hosts [ ] Maintenance hosts [ ] Wikitech host [ ] Decommission support for PHP 7.4 from production [ ] Drop PHP 7.4 and 8.0 testing from CI, if not otherwise needed for release branches

The next target for WMF production after PHP 7.4, is PHP 8.1. This task is the logical equivalent of {T271736} and will incorporate:{icon chevron-left} {T271736} | [None yet] {icon chevron-right} * Making CI passing and enforced ("voting") for MediaWiki core onThe next target for WMF production after PHP 8.0 and7.4, is PHP 8.1. This will incorporate: [ ] Assurance that this should work * Making [x] CI passing wmf-deployed MediaWiki extensions on PHP 8.0 and PHP 8.1.configured to require PHP 8.3 to pass for all production code * Provision PHP 8.1 in production via puppet and docker (including any ports or changes needed for php extension packages such as php-apcu, php-luasandbox, php-excimer, etc.) [x] Making CI passing and enforced ("voting") for MediaWiki core on PHP 8.0 and PHP 8.1. * Configure MW with ICU emulation for PHP 8.1 that matches PHP 7.4 (see also: {T263437}, {T292552}) [x] Making CI passing wmf-deployed MediaWiki extensions and skins on PHP 8.0 and PHP 8.1. * Benchmarks for different workloads and different clusters. [ ] Other tooling changes as needed *[ ] Preparation of WikimediaDebug op production? * Client-side ramup via WikimediaEvents cookie. [ ] Provision PHP 8.1 in production via puppet and docker (including any ports or changes needed for php extension packages such as php-apcu, php-luasandbox, php-excimer, etc.) * Per-cluster rampup: Per-cluster rampup: [ ] Configure MW with ICU emulation for PHP 8.1 that matches PHP 7.4 (see also: T263437, T292552). [ ] App serversPre-launch testing [ ] N% of all cookie-based traffic to Appservers and API appserversBenchmarks for different workloads and different clusters. [ ] Parsoid? Add an option to WikimediaDebug to select which version is used [ ] Job runnersAdd ability to do consistent client-side ramp-up via a WikimediaEvents cookie. [ ] Per-cluster ramp-up: [ ] App servers [ ] N% of all cookie-based traffic to Appservers and API appservers [ ] Parsoid [ ] Job runners [ ] Appservers [ ] API appservers [ ] Snapshot hosts ("dumps") [ ] Deployment hosts [ ] Maintenance hosts [ ] Wikitech host [ ] Decommission support for PHP 7.4 from production [ ] Drop PHP 7.4 and 8.0 testing from CI, if not otherwise needed for release branches