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Updated by Markus Kahl about 2 years ago
**Schedule** Migrations that could be executed out of step, either ahead of the deployment or shortly after, without causing a downtime:
<figure class="table op-uc-figure_align-center op-uc-figure"><table class="op-uc-table"><tbody><tr class="op-uc-table--row"><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p"></p></td><td class="op-uc-table--cell" style="text-align:center;vertical-align:bottom;"><p class="op-uc-p"><strong>Time (CET/Berlin) on 20.03.2024</strong></p></td><td class="op-uc-table--cell" style="text-align:center;vertical-align:bottom;"><p class="op-uc-p"><strong>Duration</strong></p></td></tr><tr class="op-uc-table--row"><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p"><strong>all shards</strong></p></td><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p">7:00 – 8:00</p></td><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p">60min</p></td></tr></tbody></table></figure>
Make sure to deploy all shards at once [as documented](https://github.com/opf/ops/blob/master/paas-v2/DEPLOYMENT.md#simultaneous-deployments), ideally with a release pre-built on the day before. * [https://github.com/opf/openproject/blob/dev/db/migrate/20240306083241\_change\_default\_value\_of\_alternative\_color.rb](https://github.com/opf/openproject/blob/dev/db/migrate/20240306083241_change_default_value_of_alternative_color.rb)
<figure class="table op-uc-figure_align-center op-uc-figure"><table class="op-uc-table"><tbody><tr class="op-uc-table--row"><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p"></p></td><td class="op-uc-table--cell" style="text-align:center;vertical-align:bottom;"><p class="op-uc-p"><strong>Time (CET/Berlin) on 20.03.2024</strong></p></td><td class="op-uc-table--cell" style="text-align:center;vertical-align:bottom;"><p class="op-uc-p"><strong>Duration</strong></p></td></tr><tr class="op-uc-table--row"><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p"><strong>all shards</strong></p></td><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p">7:00 – 8:00</p></td><td class="op-uc-table--cell" style="vertical-align:bottom;"><p class="op-uc-p">60min</p></td></tr></tbody></table></figure>
Make sure to deploy all shards at once [as documented](https://github.com/opf/ops/blob/master/paas-v2/DEPLOYMENT.md#simultaneous-deployments), ideally with a release pre-built on the day before.