Yahoo Search says it’s rolling out a new search update. Yahoo’s post says the company will be “rolling out some changes to our crawling, indexing and ranking algorithms. While we expect the update will be completed soon, as you know, throughout this process you may see some ranking changes and page shuffling in the index.”
This update also fixes issues with the Yahoo! Site Explorer delete URL functionality.
There had been reports of a Yahoo index update last week, and this update looks to be confirmation of those observed changes. Yahoo recently introduced a new crawler as well. Yahoo has been announcing updates via weather reports on their blog fairly often, most recently in March.