Deployments/Yearly calendar/2025
See also the calendar for 2024.
| What | When | Deployment decision | What happened? |
|---|---|---|---|
| New Year's Day | Wed 1 Jan | No deploys | ✅ No MW deploys |
| Martin Luther King Jr Day | Mon 20 Jan | No UTC Late backport window | |
| U.S. Presidents' Day | Mon 17 Feb | No UTC Late backport window | |
| Northward Switchover: Services + Traffic | ~21 Mar | ? | |
| Northward Switchover: Mediawiki | ~21 Mar | ? | |
| Earth Day | Tue 22 Apr | No deploys (train tbd) | |
| U.S. Memorial Day | Mon 26 May | No UTC Late backport window | |
| Juneteenth | Thu 19 Jun | No UTC Late backport window | |
| U.S. July Holiday | Thu 3 Jul | No UTC Late backport window | |
| Fourth of July | Fri 4 Jul | No deploys as normal | |
| International Day of the World’s Indigenous Peoples | Fri 8 Aug | No deploys as normal | |
| U.S. Labor Day | Mon 1 Sep | No UTC Late backport window | |
| Southward Switchover: Services + Traffic | ~21 Sep | ? | |
| Southward Switchover: Mediawiki | ~21 Sep | ? | |
| Columbus Day (also Indigenous Peoples' Day) | Mon 13 Oct | No UTC Late backport window | |
| Veterans' Day | Tue 11 Nov | No UTC Late backport window | |
| Thanksgiving & Day-after-Thanksgiving | Thu 27–Fri 28 Nov | No UTC Late backport window | |
| End of Year Holiday | Wed 24–Wed 31 Dec | No trains or deploys |