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Release DateMarch 19, 2019
Release OwnerLiz Henry
Corresponding ESR release 60.6.0
Nightly cycle length7 weeks
Beta cycle length7 weeks
Bugs fixed in nightly 2554
Uplifts in Beta324 (1 backout)
Uplifts in RC13 (0 backouts)
Total number of uplifts337
Betas12
Release Candidates3
Dot releases5
Release notes Consumer notes Developer notes
Key Milestones
Nightly start December 11
Beta start January 22
66.0 March 19
66.0.1 March 22
66.0.2 March 27
66.0.3 April 10
66.0.4 May 5
66.0.5 May 7