update migration guide

apache · Dec 31, 2024 · 636fad4 · 636fad4
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diff --git a/docs/migration.md b/docs/migration.md
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 # Upgrading from 0.5 to 0.6
 
+- Since 0.6.0, Celeborn changed the default value of `celeborn.master.slot.assign.extraSlots` from `2` to `100`, which means Celeborn will involve more workers in offering slots.
+
 - Since 0.6.0, Celeborn deprecate `celeborn.worker.congestionControl.low.watermark`. Please use `celeborn.worker.congestionControl.diskBuffer.low.watermark` instead.
 
 - Since 0.6.0, Celeborn deprecate `celeborn.worker.congestionControl.high.watermark`. Please use `celeborn.worker.congestionControl.diskBuffer.high.watermark` instead.