Medusa v1.12.2 — Release Notes & Engineering Impact

<!--  # Version 1.12.2 This version improves the developer experience of customizations and extends payment plugins with update capabilities. CMS_BREAK --> ## Highlights ### Simplified entity extensions We've simplified the steps to extend an entity so you no longer need to 1) override the entity's repository ([step 4 from our guide](https://docs.medusajs.com/development/entities/extend-entity#step-4-extend-repository)) and 2) override the models in a custom entry point file. Our documentation on [Extending an Entity](https://docs.medusajs.com/development/entities/extend-entity) has been updated to reflect these changes. ### Simplified validator extensions We've simplified the steps to extend the API payload validation so you no longer have to create a util to perform an override and include it in a loader. Our documentation will be updated very soon to reflect these changes. To extend a validator, import and use a new util `registerOverriddenValidators`. ```ts import { registerOverriddenValidators } from "@medusajs/medusa" import { AdminPostProductsReq as MedusaAdminPostProductsReq } from "@medusajs/medusa/dist/api/routes/admin/products/create-product" import { IsString } from "class-validator" class AdminPostProductsReq extends MedusaAdminPostProductsReq { @IsString() test: string } registerOverriddenValidators(AdminPostProductsReq) ``` ## Features * feat(create-medusa-app): support admin onboarding experience by @shahednasser in https://github.com/medusajs/medusa/pull/4339 * feat(medusa-plugin-sendgrid): Add error messages by @pevey in https://github.com/medusajs/medusa/pull/4384 * feat(medusa): Allow to register extended validators seemlesly by @adrien2p in https://github.com/medusajs/medusa/pull/4397 * feat(medusa): Improve error messaging in plugin loader by @olivermrbl in https://github.com/medusajs/medusa/pull/4410 * feat(medusa-react,medusa-js): Allow custom headers by @pevey in https://github.com/medusajs/medusa/pull/4409 * feat(medusa, types): Improve DX of model extensions (#4398) by @riqwan in https://github.com/medusajs/medusa/pull/4398 * feat: Remote Joiner by @carlos-r-l-rodrigues in https://github.com/medusajs/medusa/pull/4098 * feat(medusa, stripe, paypal): Add update payment session support to the abstract payment processor API by @adrien2p in #4442 * feat(create-medusa-app): remove .git directory in the project by @shahednasser in #4493 ## Bugs * fix(product, types): correct path for migration files + fix types on products service module by @riqwan in https://github.com/medusajs/medusa/pull/4348 * fix(medusa, utils): fix the way selects are consumed alongside the relations by @adrien2p in https://github.com/medusajs/medusa/pull/4389 * fix(medusa-react): fix wrong admin reservations query key by @josetr in https://github.com/medusajs/medusa/pull/4441 ## Chores * chore(medusa): Concurrently get the items and count instead of sequentially by @adrien2p in https://github.com/medusajs/medusa/pull/4367 * chore(gatsby-source-medusa): Cleanup plugin setup by @adrien2p in https://github.com/medusajs/medusa/pull/4419 * chore(medusa-dev-cli): Cleanup plugin setup by @adrien2p in https://github.com/medusajs/medusa/pull/4421 * chore(medusa-cli): Cleanup plugin setup by @adrien2p in https://github.com/medusajs/medusa/pull/4420 * chore(create-medusa-app): Cleanup the main script for readability and maintainability by @adrien2p in #4369 **Full Changelog**: https://github.com/medusajs/medusa/compare/v1.12.1...v1.12.2