Ubuntu 22.04 Jammy Jellyfish is an upcoming regular release of Ubuntu. As the version name indicates, Ubuntu 22.04 is due for release on 21st April 2022. Ubuntu 22.04 will be an LTS (Long Term Supported) release with a support period of 5 years.

Ubuntu 22.04 Jammy Jellyfish release schedule

Week	Date (Thursday)	22.04 events
October 2021
1	October 21	Toolchain Uploaded
2	October 28
November 2021
3	November 04
4	November 11
5	November 18
6	November 25
December 2021
7	December 02
8	December 09
9	December 16
10	December 23	Ubuntu Testing Week (optional)
11	December 30
January 2022
12	January 06
13	January 13
14	January 20
15	January 27
February 2022
16	February 03
17	February 10
18	February 17	Go 1.18
19	February 24	Feature Freeze, Debian Import Freeze
March 2022
20	March 03	Ubuntu Testing Week (optional)
21	March 10
22	March 17	User Interface Freeze
23	March 24	Documentation String Freeze, Kernel Feature Freeze
24	March 28 (Monday)	Beta Freeze, Hardware Enablement Freeze
⠀	March 31	Beta (mandatory)
April 2022
25	April 07	Kernel Freeze, Non Language Pack Translation Deadline
26	April 14	Final Freeze, Release Candidate, Language Pack Translation Deadline
27	April 21	Final Release

Read the discussion in Ubuntu Discourse to see the up-to-date Ubuntu Jammy Jellyfish release schedule.