+* SearchResultSet::{next,rewind} are deprecated. Calling code should
+ use foreach on the SearchResultSet, or the extractResults method. Extending
+ code should override extractResults.
+* Instantiating SearchResultSet directly is deprecated. SearchEngine
+ implementations must subclass SearchResultSet for their purposes.
+* SearchResult::setExtensionData argument has been changed from accepting an
+ array to accepting a Closure that returns the array when called.
+* Class CryptRand, everything in MWCryptRand except generateHex() and function
+ MediaWikiServices::getCryptRand() are deprecated, use random_bytes() to
+ generate cryptographically secure random byte sequences.
+* Parser::getConverterLanguage() is deprecated. Use ::getTargetLanguage()
+ instead.
+* Language::markNoConversion() is deprecated. It confused readers because
+ it had unexpected behavior (only marking text if it looked like a URL)
+ and was only used in a single place in the code. Use
+ LanguageConverter::markNoConversion() instead.
+* (T176526) EditPage::getContextTitle() falling back to $wgTitle when the
+ context title is unset is now deprecated; anything creating an EditPage
+ instance should set the context title via ::setContextTitle().