SpamAssassin version 3.3.0 has not had a rule update since 2016-05-14. SpamAssassin version 3.3.1 has not had a rule update since 2016-05-14. SpamAssassin version 3.3.2 has not had a rule update since 2016-05-14.
20160527: Spam or ham is below threshold of 150,000: http://ruleqa.spamassassin.org/?daterev=20160527 20160527: Spam: 562920, Ham: 144316 The spam and ham counts on which this script alerts are from http://ruleqa.spamassassin.org/?daterev=20160527 Click "(source details)" (it's tiny and low contrast). It's from the second and third columns of the line that ends with "(all messages)" The source to this script is http://www.chaosreigns.com/sa/update-version-mon.pl It looks like both the weekly and nightly masschecks need to have sufficient corpora in order for an update to be generated.
