State of v7

[marcin-bury]

Hi

I'm new to TS/JS world, although being experienced developer.
I wondering if v7 is mature enough to start learning how to use it. I prefer TS over JS, and to be honest I'd like to skip 'sequelize-typescript' bridge.

Thx
Marcin

[ephys]

Sequelize 7 is still in alpha but if you're OK with the limitations, it's not a bad idea to start using it.

One of the selling points of v7 is that we rewrote a big part of it to be typescript-friendly

You can take a look at the progress of Sequelize 7 here: https://github.com/orgs/sequelize/projects/1/views/1

Here is what is likely to impact you:

• sequelize-cli does not support Sequelize 7 yet. If you want to use migrations, you would need to use umzug or another migration library instead
• If you use third-party libraries, they are unlikely to work with Sequelize 7 for the time being
• A few decorators from Sequelize-TypeScript are still missing: Status of merge with sequelize-typescript #15334
• Model inheritance is not ready Done
• There is a minor bug with belongsTo (with workaround): Multiple belongsTo associations in same model to same target not working with inverse  #15625, which will be fixed before the stable release. Fixed
• The new documentation does not describe how to use association decorators yet. They work very similarly to how they did in Sequelize-TypeScript. Done

If you want to use Sequelize 7, I recommend reading the documentation from this PR: sequelize/website#330 (comment). The documentation is available on https://sequelize.org. Don't hesitate to ask questions as it will help us improve the documentation

[marcin-bury]

Zoe

Thank you very much for the detailed answer.

Marcin

[taslangraham]

@ephys Will sequelize-cli support Sequelize 7 anytime soon?

[ephys]

We don't have an ETA at this time. We'll work on the CLI when the main library is ready

[ilyaskarim]

@ephys When you think the Sequelize 7 will be in stable version....

[ephys]

We discussed it during last month's meeting, the meeting notes are here: https://github.com/sequelize/meetings/wiki/Meeting-2024%E2%80%9003%E2%80%9022#latest-v7-release-plan

The last two blockers that remained were splitting the dialects (this is now done) and implementing the new CLI, (this is in progress)

[ilyaskarim]

Thank you @ephys for the links those were helpful, BTW I am very happy with decision of including sorting in each include for associations.