salesforce-upgrade-migration

# Salesforce Upgrade & Migration ## Overview Guide for upgrading Salesforce API versions (v55.0 to v59.0+), migrating between jsforce major versions, and handling Salesforce seasonal release changes. ## Prerequisites - Current jsforce or simple-salesforce installed - Git for version control - Test suite with Salesforce integration tests - Sandbox environment for validation ## Instructions ### Step 1: Check Current Versions ```bash # jsforce version npm list jsforce # Current API version in use node -e "const jsforce = require('jsforce'); const c = new jsforce.Connection({}); console.log('Default API version:', c.version)" # Available API versions from your org sf org display --target-org my-org --json | jq '.result.apiVersion' ``` ### Step 2: Salesforce API Version Changes | API Version | Release | Key Changes | |------------|---------|-------------| | v59.0 | Winter '24 | Composite Graph improvements, Einstein AI endpoints | | v58.0 | Summer '23 | Enhanced Bulk API 2.0, Flow API updates | | v57.0 | Spring '23 | SOQL `TYPEOF` improvements, new standard fields | | v56.0 | Winter '23 | sObject Collections batch size changes | | v55.0 | Summer '22 | Retirement of old SOAP API features | **Salesforce retires API versions periodically.** Versions older than 3 years are typically deprecated. Check [Salesforce Release Notes](https://help.salesforce.com/s/articleView?id=release-notes.salesforce_release_notes.htm) each season. ### Step 3: jsforce Major Version Migration ```...