[release/9.0] Fix snapshot generation to capture column type for JSON columns #37294
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[WIP] Port changes from PR #37284 to release/9.0-staging
Port #37284 to release/9.0-staging: Fix snapshot generation for JSON column types
Dec 4, 2025
AndriySvyryd
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AndriySvyryd
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SamMonoRT
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Dec 5, 2025
cincuranet
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Dec 5, 2025
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cc @artl93 |
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@AndriySvyryd - cutoff for 8 and 9 Jan servicing is today, but this looks like it can wait for next month. |
Port of #37284 Co-authored-by: AndriySvyryd <[email protected]>
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This was referenced Jan 14, 2026
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Bump Microsoft.EntityFrameworkCore.Design from 8.0.11 to 9.0.12
AhmedAzzu25/PharmacyInventoryDemo#12
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Port of #37284
Description
EF Core 10 added support for
jsonSQL Server type for JSON column and it's used by default if the target SQL Server version supports, but no migrations to convert the columns to the newjsoncolumn type are created because the model snapshot doesn't capture the default store type for JSON columns.Customer impact
Customers upgrading from EF Core 9 to 10 who use
ToJson()won't get migrations generated to update the column type fromnvarchar(max)tojson. The workaround is to manually specify.HasColumnType("json")on the JSON column.How found
Customer reported on EF 10.0.0
Regression
No, new feature.
Testing
Test added
Risk
Low. Targeted fix to include the default column type in the model snapshot. Only affects design-time.
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