This will be a wikithread listing, in reverse order, the release date of each beta (Developer and public) and public release of each version of iOS 16 (and potentially beyond). Although I am aware of the Wikipedia thread with the release date of each (major, minor and "point" release) version of iOS, that post does not list the date the various betas of each version was released, which is a topic of frequent conversation here.
Color Code:
Developer Betas
Public Betas
General Releases
So here goes:
iOS 16.1 Public Beta 4
- Release date: Tuesday, October 4, 2022, 1pm PDT
- Duration: __ days
- 20B5064c
iOS 16.1 Developer Beta 4
- Release date: Tuesday, October 4, 2022,10am PDT
- Duration: __ days
- 20B5064c
iOS 16.1 Public Beta 3
- Release date: Wednesday, September 28, 2022, 1pm PDT
- Duration: 7 days
- 20B5056e
iOS 16.1 Developer Beta 3
- Release date: Tuesday, September 27, 2022,10am PDT
- Duration: 7 days
- 20B5056e
iOS 16.0.2
- Release date: Thursday, September 22, 2022,10am PDT
- 20A380
iOS 16.1 Public Beta 2
- Release date: Wednesday, September 21, 2022, 1pm PDT
- Duration: 7 days
- 20B5050f
iOS 16.1 Developer Beta 2
- Release date: Tuesday, September 20, 2022,10am PDT
- Duration: 7 days
- 20B5050f
iOS 16.1 Public Beta 1
- Release date: Thursday, September 15, 2022, 1pm PDT
- Duration: 6 days
- 20B5045d
iOS 16.1 Developer Beta 1
- Release date: Wednesday, September 14, 2022,10am PDT
- Duration: 6 days
- 20B5045d
iOS 16.0.1 Public Release (iPhone 14 models only)
- Release date: Wednesday, September 14, 2022,4pm PDT
- 20A371
iOS 16 Public Release
- Release date: Monday, September 12, 2022, 10am PDT
- Duration: ___days*
- 20A362
iOS 16 Release Candidate
- Release date: Wednesday, September 7, 2022, 12 pm PDT
- Duration: 5 days (released version)
- 20A362
iOS 16 Public Beta 6
- Release date: Monday, August 29, 2022, 1pm PDT
- Duration: 9 days
- 20A5358a
iOS 16 Developer Beta 8
- Release date: Tuesday, August 29, 2022, 10am PDT
- Duration: 9 days
- 20A5358a
iOS 16 Public Beta 5
- Release date: Wednesday, August 24, 2022, 10 am PDT
- Duration: 5 days*
- 20A5356a
iOS 16 Developer Beta 7
- Release date: Tuesday, August 23, 2022, 10am PDT
- Duration: 6 days*
- 20A5356a
iOS 16 Public Beta 4
- Release date: Monday, August 15, 2022, 1 pm PDT
- Duration: ___days*
- 20A5349b
iOS 16 Developer Beta 6
- Release date: Monday, August 15, 2022, 10am PDT
- Duration: ___days*
- 20A5349b
iOS 16 Public Beta 3
- Release date: Tuesday, August 9, 2022, 10am PDT
- Duration: 6 days*
- 20A5339d
iOS 16 Developer Beta 5
- Release date: Monday, August 8, 2022, 10am PDT
- Duration: 7 days*
- 20A5339d
iOS 16 Public Beta 2
- Release date: Thursday, July 28, 2022, 10am PDT
- Duration: 12 days*
- 20A5328h
iOS 16 Developer Beta 4
- Release date: Wednesday, July 27, 2022, 10am PDT
- Duration: 12 days
- 20A5328h
iOS 16 Public Beta 1
- Release date: Monday, July 11, 2022, 10am PDT
- Duration: 17 days
- 20A5312j
iOS 16 Developer Preview 3 (UPDATE)
- Release date: Monday, July 11, 2022, 10am PDT
- Duration: 16 days
- (20A5312j)
iOS 16 Developer Preview 3
- Release date: Wednesday, July 6, 2022, 10am PDT
- Duration: 5 days
- 9 builds ahead of DP2 (20A5312g vs 20A5303i)
iOS 16 Developer Preview 2
- Release date: Wednesday, June 22, 2022, 10am PDT
- Duration: 14 days
iOS 16 Developer Preview 1
- Release date: Monday, June 6, 2022, 1pm PDT
- Duration: 16 days
*This will be filled in when the next beta (or public release) is made available