New global API rate limits deployed for anonymous requests

Hi all!

As previously announced 
<https://lists.wikimedia.org/hyperkitty/list/[email protected]/thread/GBFZTN3A233IR6F4HEENCIUCVI2ZH6YB/>, 
we have started rolling out new global API rate limits across our APIs to help 
ensure fair and sustainable access 
<https://www.mediawiki.org/wiki/MediaWiki_Product_Insights/Content_Reuse>to 
Wikimedia resources.


We have just enabled the first set of limits, which apply to anonymous requests 
from bots and unauthenticated requests from web browsers. See the documentation 
on mediawiki.org <http://mediawiki.org>for more information. This has now been 
updated with actual limits for anonymous requests and authenticated bot requests 
that do not come from WMCS. We are still finalizing the initial limits for 
User-Agent only (e.g. InstantCommons) and authenticated browser requests.


As a next step, rate limits for logged in users will follow in early April 
<https://www.mediawiki.org/wiki/MediaWiki_Product_Insights/Responsible_Reuse/WE5.1:_Developer_authentication_and_authorization#Timeline>. 
The concrete limits will be communicated beforehand. Access for clients running 
in WMCS and accounts that have a bot flag will not be affected by this change. 
However, all developers are advised to familiarize themselves with the new 
limits and follow the best practices outlined in the documentation.


If you see any unexpected issues that might be the result of the limits rolled 
out today, we are actively monitoring this list, relevant Talk pages and 
[email protected] <mailto:[email protected]>.


-- 
Daniel Kinzler
Principal Software Engineer
MediaWiki Engineering Group
Wikimedia Foundation

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