Ubuntu 23.10 Mantic Minotaur is an upcoming, regular release of Ubuntu. The Canonical has published the release schedule for the Mantic Minotaur in its official discourse portal. As per the schedule, the final release will be available on 12th October 2023.

Ubuntu 23.10 Mantic Minotaur release schedule.

The tentative release schedule for Ubuntu 23.10 is available below. There could be some minor changes if there is any unexpected event in between.

Week	Date (Thursday)	23.10 events
April 2023
1	April 27	Toolchain Uploaded
May 2023
2	May 04
3	May 11
4	May 18
5	May 25
June 2023
6	June 01
7	June 08
8	June 15
9	June 22
10	June 29	Ubuntu Testing Week (optional)
July 2023
11	July 06
12	July 13
13	July 20
14	July 27
August 2023
15	August 03
16	August 10
17	August 17	Feature Freeze 10, Debian Import Freeze
18	August 24	Ubuntu Testing Week (optional)
19	August 31
September 2023
20	September 07	User Interface Freeze 4
21	September 14	Documentation String Freeze 1, Kernel Feature Freeze
22	September 18 (Monday)	Beta Freeze, Hardware Enablement Freeze
⠀	September 21	Beta (mandatory)
23	September 28	Kernel Freeze, Non Language Pack Translation Deadline
October 2023
24	October 05	Final Freeze, Release Candidate 1, Language Pack Translation Deadline 3
25	October 12	Final Release 11

For the latest release schedule, follow the discussion on Ubuntu Discourse.