| --- |
| layout: default |
| title: Maintenance Release Procedure |
| parent: Release & Milestone Tasks |
| grand_parent: Contributors |
| nav_order: 75 |
| --- |
| |
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| |
| # Maintenance Release Procedure |
| |
| When a critical problem is found in ICU libraries, we try to fix the problem in |
| the latest development stream first. If there is a demand for the fix in a past |
| release, an ICU project developer may escalate the fix to be integrated in the |
| release to the ICU project management committee. Once the committee approved to |
| merge the fix into back level stream, the developer can merge the bug fix back |
| to the past release suggested by the committee. This merge activity must be |
| tracked by maintenance release place holder tickets and the developer should |
| provide original ticket number and description as the response in each |
| maintenance ticket. These fixes are automatically included in a future ICU |
| maintenance release. |
| |
| ## Place Holder Ticket |
| |
| Once a major version of ICU library is released, we create maintenance release |
| place holder tickets for the major release (one for C, one for J). The ticket |
| should have subject: "ICU4\[C|J\] m.n.X". For example, after ICU 4.8 release, we |
| create two tickets - "ICU4C 4.8.X" and "ICU4J 4.8.X". These tickets must use the |
| target milestone - "maintenance-release". |
| |
| ## Maintenance Release |
| |
| When the ICU project committee agree on releasing a new maintenance release, the |
| corresponding place holder ticket will be promoted to a real maintenance release |
| task ticket. This is done by following steps. |
| |
| * Create the new actual maintenance release milestone (e.g. 4.8.1) |
| * Change the place holder ticket's subject to the actual version (e.g. "ICU4C |
| 4.8.X" -> "ICU4C 4.8.1") |
| * Retarget the place holder ticket to the actual release (e.g. |
| "maintenance-release" -> "4.8.1") |
| * Create a new place holder ticket for future release (e.g. new ticket "ICU4C |
| 4.8.X", milestone: "maintenance-release") |
